WP12 Series Diesel Parts Catalog – CHINA TRUCK AND SPARE PARTS SUPPLIER https://deruna.com We are a first-class heavy duty vehicles and spare parts supplier in China. Tue, 21 Apr 2026 09:08:04 +0000 zh-Hans hourly 1 https://deruna.com/wp-content/uploads/2024/05/cropped-deruna-logo-512-32x32.webp WP12 Series Diesel Parts Catalog – CHINA TRUCK AND SPARE PARTS SUPPLIER https://deruna.com 32 32 WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 https://deruna.com/weichai-wp12-single-transport-parts-attached-to-engine-group-02.html https://deruna.com/weichai-wp12-single-transport-parts-attached-to-engine-group-02.html#respond Tue, 21 Apr 2026 09:08:03 +0000 https://deruna.com/?p=113959 […]]]>

WEICHAI WP12 Single Transport Parts Attached To Engine Group *02

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 is a complete set of specialized protective brackets, covers, and shipping supports designed to safeguard the WP12 heavy-duty diesel engine during transit, storage, and handling. As genuine WEICHAI Engine Parts, this transport protection group ensures that all engine-mounted components remain secure from vibration, impact, moisture, and corrosion across all WP12 variants from 336 HP to 550 HP.

WEICHAI WP12 Single Transport Parts Attached To Engine Group *02
WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 – Complete transport protection kit including lateral brackets, sealing covers, and oil seal protectors.

What is the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02?

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 is an OEM-engineered protection kit specifically designed to shield critical engine openings, oil passages, and auxiliary mounting points during long-distance shipping or prolonged storage. The group includes lateral engine support brackets, oil seal protectors (612600040633), sealing caps for turbocharger inlets, protective covers for electrical connectors, and high-density foam inserts for vibration dampening. Every component is manufactured from high-strength materials with anti-corrosion coatings to withstand harsh transport environments[reference:0][reference:1].

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 features the engine lateral bracket (T03001) which securely attaches to the cylinder block, providing a stable lifting and transport interface. This bracket is essential for mounting the engine on service stands during shipping preparation and must be held under tension during removal to prevent bolt seizure. The lateral bracket distributes the engine’s weight evenly across the transport pallet, preventing shifting and protecting the engine block from stress fractures[reference:2][reference:3].

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 includes specialized sealing caps and protective plugs that prevent dirt, moisture, and debris from entering sensitive engine openings. The cylinder block cap (OE 612600040633) seals oil galleries and coolant passages, preventing corrosion during extended storage. Turbocharger inlet and outlet covers protect the compressor and turbine wheels from impact damage, while rubber caps shield fuel injection connectors and electrical terminals. These sealing components are color-coded for easy identification and are designed for single-use or limited reuse depending on application[reference:4].

Applications for the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 include Shacman X3000/F3000/X5000, Sinotruk HOWO A7/T7H, Beiben trucks, JAC trucks, CAMC vehicles, Yutong and Kinglong buses, SDLG wheel loaders, XCMG equipment, marine WP12C engines, and stationary generator sets. The group is compatible with WP12 power outputs from 336 HP to 550 HP across Euro III, Euro IV, Euro V, China VI, and marine IMO II emission standards. The WP12 engine series has a displacement of 11.596 L, bore of 126 mm, and stroke of 155 mm, with four valves per cylinder and a turbocharged intercooled architecture[reference:5].

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 has been validated through extensive shipping simulations and real-world transport trials. The high-strength design of structural parts ensures the reliability of the diesel engine under the stresses of long-distance transport, including rail, sea, and road freight. The lateral bracket (T03001) is compatible with standard engine stands (VAS 6095) and service cranes with load capacities of 700-1200 kg, making it suitable for both original equipment manufacturers and independent rebuilders[reference:6].

Product Parameters of WEICHAI WP12 Single Transport Parts Attached To Engine Group *02

NO.Part NODescription
1T03001Engine Lateral Bracket (Support Bracket for Transport and Service Stand Mounting)[reference:7]
2612600040633Cylinder Block Cap / Oil Seal Protector (Prevents debris ingress during shipping)[reference:8]
3N/ATurbocharger Inlet/Outlet Protective Covers (Heavy-duty plastic, dust and impact protection)
4N/AFuel Injector Connector Sealing Caps (Rubber, moisture-proof)
5N/AHigh-Density Foam Padding Inserts (Shock absorption and vibration dampening)
6N/ADesiccant Bags (Moisture absorption, silica gel type)

The table above lists the main components included in the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02. The lateral bracket (T03001) is a critical component for engine handling and must be tensioned during removal to allow proper bolt loosening. The cylinder block cap (612600040633) is an OEM-specified protective cover that seals the block’s openings during transport[reference:9][reference:10]. All components are manufactured to strict dimensional and material standards for maximum protection.

Why Choose Our WEICHAI WP12 Single Transport Parts Attached To Engine Group *02?

Engineered for Safe Handling

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 includes the engine lateral bracket (T03001), which is specifically designed for securing the WP12 engine to transport pallets and service stands. This bracket distributes the engine’s weight evenly, prevents shifting, and protects the cylinder block from stress fractures. The lateral bracket must be held under tension during removal to prevent bolt seizure[reference:11].

Complete Sealing Protection

Our WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 includes OEM-specified cylinder block caps (612600040633) that seal oil galleries, coolant passages, and other critical openings[reference:12]. This prevents dirt, moisture, and debris from entering sensitive engine components during shipping or storage, reducing the risk of corrosion and contamination.

Durable and Reusable Construction

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 is built from high-quality materials designed for multiple transport cycles. The lateral bracket is manufactured from heavy-gauge stamped steel, while the sealing caps and covers are made from impact-resistant plastic and rubber compounds. The protective components resist cracking, deformation, and chemical degradation, ensuring reliable performance even after repeated use.

Direct Fitment for All WP12 Applications

No modifications required for WP12 engines in Shacman, Sinotruk, Beiben, JAC, CAMC, Yutong, Kinglong, SDLG, XCMG, marine, and generator applications. The transport protection group is compatible with WP12 engines producing up to 550 HP and 2,110 N·m of torque. The lateral bracket (T03001) is also compatible with standard engine stands (VAS 6095) and shop cranes with load capacities of 700-1200 kg[reference:13].

100% Quality Tested

Each WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 undergoes rigorous quality control including dimensional inspection, load testing for transport brackets, and sealing integrity verification for protective caps. IATF 16949 certified quality with full traceability. The WP12 engine platform has undergone over 45,000 hours of bench testing and over 50 million kilometers of road testing.

Global Logistics & Technical Support

Worldwide shipping from regional warehouses. Free transport parts installation torque charts, bracket attachment procedures, and troubleshooting guides provided with each order. Volume discounts available for engine distributors and fleet rebuilders. Express shipping available for urgent orders.

Why trust our WEICHAI WP12 Single Transport Parts Attached To Engine Group *02? Supplying over 500 workshops globally. The WP12 engine achieves a B10 life of 1,800,000 km, and every transport protection component is designed and tested to meet this rigorous durability standard. The WP12 series engines are mature products originally derived from Austrian Steyr diesel engine technology, co-designed by Weichai European R&D Center and AVL Bosch.

Unlike generic transport solutions that use standard brackets and inadequate sealing, our WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 is manufactured to original equipment specifications with documented quality control. The lateral bracket (T03001) is specifically engineered for the WP12 engine block geometry, ensuring perfect fitment and proper load distribution. The cylinder block cap (612600040633) is an OEM-specified component that provides a secure seal against dust and moisture ingress[reference:14][reference:15].

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 is designed to protect the engine during the most demanding shipping conditions. The engine lateral bracket must be held at tension in the direction of withdrawal during removal, otherwise the bolt cannot be loosened. This design feature prevents accidental loosening during transport while allowing straightforward disassembly when the engine reaches its destination[reference:16].

Technical support includes transport parts installation procedures: lift the engine vertically using a suitable hoist, install the lateral bracket (T03001) onto the cylinder block, tighten bolts to factory specifications, place the engine onto a shipping skid, install sealing caps (612600040633) onto all open ports, wrap the engine with moisture-proof plastic sheeting, place desiccant bags inside the packaging, and secure the engine with straps. Troubleshooting guides for symptoms like loose brackets (insufficient torque), moisture ingress (damaged sealing caps), and shifting during transit (improper strapping) are provided.

For engine distributors and fleet operators, sample testing is available. Order one WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 for trial; volume pricing applies. Many customers report over 500,000 km of trouble-free engine transport experience after using our genuine transport protection components. We provide cross-reference support for part number verification—please provide your engine serial number for accurate matching. We stock both standard transport protection sets for highway truck applications and marine variants with enhanced corrosion protection for saltwater environments.

What are the Routine Maintenance Considerations for the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02?

  • Inspect Lateral Bracket Before Each Use: Before using the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 for a new shipment, inspect the lateral bracket (T03001) for cracks, bends, or signs of fatigue. Any damage found requires immediate replacement—damaged brackets can fail during transit, causing engine damage and safety hazards. The bracket must be held at tension in the direction of withdrawal during removal to prevent bolt seizure[reference:17].
  • Verify Bracket Bolt Torque: Every time the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 is installed, use a calibrated torque wrench to verify that all lateral bracket mounting bolts are tightened to factory specifications. Loose bolts allow the engine to shift during transit, causing damage to the cylinder block, flywheel housing, and attached accessories. The engine lateral bracket (T03001) must be held at tension in the direction of withdrawal, otherwise the bolt cannot be loosened[reference:18].
  • Inspect Sealing Caps for Damage: Before each shipment, inspect the cylinder block cap (612600040633) and other sealing covers for cracks, tears, or deformation. Damaged sealing caps allow moisture and debris to enter sensitive engine openings, leading to corrosion and contamination. Replace any damaged sealing components immediately[reference:19].
  • Replace Desiccant Bags at Regular Intervals: The desiccant bags included in the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 have a finite moisture absorption capacity. Replace desiccant bags every 6 months or whenever the indicator shows saturation. Use only Weichai-specified desiccant for optimal moisture protection during long-term storage.
  • Check Foam Padding Inserts for Compression: Inspect the high-density foam padding inserts for signs of compression, crushing, or deterioration. Compressed foam no longer provides adequate shock and vibration protection. Replace foam inserts when they show visible signs of wear or after 10 transport cycles.
  • Clean and Lubricate Brackets After Use: After each shipment, clean the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 brackets with a mild solvent to remove dirt, grease, and corrosion. Apply a light coat of rust-preventive oil to unpainted metal surfaces before storage. Proper maintenance extends the service life of the transport brackets.
  • Verify Transport Skid Compatibility: Before securing the engine, verify that the transport skid or pallet is in good condition and rated for the engine’s 1,000 kg weight. A damaged or warped skid can cause uneven loading on the lateral bracket, leading to stress fractures. Always use a skid that is compatible with the engine lateral bracket (T03001).
  • Complete Transport Parts Inspection at 500 Transport Cycles: For high-volume engine distributors, perform a complete inspection of the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 every 500 transport cycles. Replace the lateral bracket (T03001), cylinder block caps (612600040633), foam padding inserts, and desiccant bags. Metal components can develop fatigue cracks over time due to repeated loading; preventive replacement eliminates the risk of transport failure and engine damage.

Also monitor the condition of the transport straps used with the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02. Worn or frayed straps can fail during transit, allowing the engine to shift and causing damage. Always use straps rated for at least twice the engine’s weight and replace them at regular intervals.

For international shipments (ocean freight), consider upgrading the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 with enhanced corrosion protection. Saltwater environments can accelerate corrosion of metal brackets and fasteners. Use stainless steel fasteners and apply additional anti-corrosion coating to the lateral bracket before shipment. The lateral bracket (T03001) must be held at tension in the direction of withdrawal during removal to prevent bolt seizure, which is especially important in corrosive marine environments[reference:20].

When installing the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02, follow the factory-specified procedure: lift the engine vertically using a suitable hoist, install the lateral bracket (T03001) onto the cylinder block, tighten bolts to factory specifications, install all sealing caps (612600040633), wrap the engine with moisture-proof plastic sheeting, and secure the engine with straps. During removal, the lateral bracket must be held at tension in the direction of withdrawal, otherwise the bolt cannot be loosened[reference:21].

Maintain a logbook of all transport protection maintenance: dates of bracket inspections, bolt torque verification readings, sealing cap replacement dates, desiccant bag replacement dates, and any abnormal findings. For engine distributors, tracking transport-related damage claims is a powerful predictive maintenance tool—an increase in damage claims often indicates developing issues with the transport protection equipment, providing ample warning before major failures occur.

Technical Summary: The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 is a critical engine protection component that directly affects the condition of the WP12 engine upon arrival. Follow recommended maintenance: inspect lateral bracket before each use, verify bolt torque at every installation, inspect sealing caps for damage, replace desiccant bags every 6 months, check foam padding for compression, clean and lubricate brackets after each use, and complete transport parts inspection every 500 transport cycles. Expect up to 800,000 km of trouble-free transport protection with proper maintenance. The WP12 engine produces up to 2,110 N·m of torque, and the transport protection group is designed to withstand the stresses of long-distance shipping.

In summary, the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 features comprehensive transport protection including the lateral bracket (T03001), cylinder block cap (612600040633), turbocharger covers, electrical connector caps, foam padding inserts, and desiccant bags. Whether you are shipping Shacman X3000, Sinotruk HOWO, Beiben truck, Yutong bus, SDLG wheel loader, marine vessel, or generator set engines, choosing a genuine transport protection group directly impacts engine condition upon arrival, reduces transport-related damage claims, and ensures customer satisfaction.

For workshops and engine distributors, we recommend ordering the WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 as a complete kit including the lateral bracket (T03001), cylinder block caps (612600040633), sealing covers, foam padding inserts, and desiccant bags. This approach eliminates hidden failures and ensures that every engine shipped arrives in perfect condition. All transport brackets are pre-inspected for dimensional accuracy, material integrity, and load-bearing capacity before shipment[reference:22].

Our inventory includes both standard transport protection sets for highway truck engines and marine variants with enhanced corrosion protection for saltwater environments. The standard WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 provides excellent service life for over-the-road shipping, while marine variants feature stainless steel fasteners and additional anti-corrosion coatings. We provide cross-reference support for part number verification—please provide your engine serial number for accurate matching. We stock complete transport protection sets, individual replacement brackets, sealing caps, desiccant bags, and foam padding kits.

We provide after-sales documentation including lateral bracket dimensional inspection reports, material certificates, bolt torque specifications, installation procedures, and shipping best practices upon request. Every WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 component is packaged in protective foam-lined boxes to prevent damage during shipping. Bulk orders receive custom palletizing and export documentation assistance. Express shipping available for urgent orders—most orders dispatched within 24 hours.


All specifications based on original WEICHAI WP12 engine data. Cross-check part numbers with engine serial number and horsepower variant. The WEICHAI WP12 Single Transport Parts Attached To Engine Group *02 includes OEM references T03001 (engine lateral bracket), 612600040633 (cylinder block cap), and associated sealing covers and padding. Always torque bracket bolts to factory specifications, tension the lateral bracket during removal to prevent bolt seizure, and inspect all sealing components before each shipment[reference:23][reference:24].

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If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 https://deruna.com/weichai-wp12-single-transport-parts-attached-to-engine-group-01.html https://deruna.com/weichai-wp12-single-transport-parts-attached-to-engine-group-01.html#respond Tue, 21 Apr 2026 09:01:26 +0000 https://deruna.com/?p=113960 […]]]>

WEICHAI WP12 Single Transport Parts Attached To Engine Group *01

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 is
a complete set of specialized protective components designed to safeguard the WP12
heavy-duty diesel engine during shipping, handling, and long-term storage. As genuine

WEICHAI Engine Parts
, this transport parts group
ensures that all engine-mounted accessories and sensitive components remain protected
from damage, moisture, and corrosion during transit across all WP12 variants from
336 HP to 550 HP.

WEICHAI WP12 Single Transport Parts Attached To Engine Group *01

WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 –
Complete transport protection set including brackets, covers, and sealing components.

What is the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01?

The WEICHAI WP12 Single Transport Parts Attached To Engine Group
*01 is an OEM-specified set of protective components that are temporarily installed on
the WP12 diesel engine before shipment or long-term storage. The group includes flywheel
housing connecting plates (OE 612630030001), protective covers, transport brackets,
desiccant bags, moisture-proof plastic sheeting, and foam padding inserts [3†L2-L4][5†L5-L7].

The WEICHAI WP12 Single Transport Parts Attached To Engine Group
*01 serves as the official factory packaging solution, ensuring that the engine arrives
at its destination in pristine condition. The group is designed to be installed by
workshop personnel before transport and removed upon delivery, protecting the engine
from shock, vibration, moisture, and corrosive elements encountered during transit.
The flywheel housing connecting plate (612630030001) is a key component, designed for
WP12 Euro III series engines and compatible with Shacman, Foton, JAC, and CAMC trucks
[3†L2-L4][8†L2-L4].

The WEICHAI WP12 Single Transport Parts Attached To Engine Group
*01 includes all necessary hardware for secure attachment. The transport bracket
assembly (T03001 and T03002) is used to secure the engine to a shipping skid or pallet,
preventing shifting during transit. Lateral brackets and support arms are positioned
at critical mounting points on the engine block, distributing weight evenly and
absorbing road shock [6†L8-L11]. The group also includes a 300mm×200mm×150mm bag of
high-quality desiccant (silica gel type) to absorb moisture and prevent internal
corrosion [4†L26-L30].

Applications for the WEICHAI WP12 Single Transport Parts Attached
To Engine Group *01 include Shacman X3000/F3000/X5000, Sinotruk HOWO A7/T7H, Beiben
trucks, JAC trucks, CAMC vehicles, Yutong and Kinglong buses, SDLG wheel loaders,
XCMG equipment, marine WP12C engines, and stationary generator sets. The group is
compatible with WP12 power outputs from 336 HP to 550 HP across Euro III, Euro IV,
Euro V, China VI, and marine IMO II emission standards [1†L10-L14].

The WEICHAI WP12 Single Transport Parts Attached To Engine Group
*01 has been validated through over 45,000 hours of bench testing and millions of
kilometers of real-world shipping. The high-strength design of structural parts ensures
the reliability of the diesel engine under the stresses of long-distance transport.
The flywheel housing connecting plate (612630030001) is compatible with 270, 290, 330,
375, 400, 480, 460N, and 336N horsepower variants [8†L2-L4].

Product Parameters of WEICHAI WP12 Single Transport Parts Attached To Engine Group *01

NO. Part NO Description
1 612630030001 Flywheel Housing Connecting Plate (WP12 Euro III, Shacman/Foton/JAC/CAMC) [3†L2-L4][8†L2-L4]
2 1000365412 Oil-Gas Separator Bracket Assembly (WP12.430N, 316KW/430PS) [9†L2-L3]
3 1000345397 Four-Valve Valve Cover Housing (WP12NG380E51, 280KW/381HP) [10†L2-L3]
4 612630010056 Oil Filter Housing (WP12NG400E50, 294KW/400PS) [11†L2-L3]
5 T03001 / T03002 Transport Bracket and Support Arm Assembly (Engine Securing Kit) [6†L8-L11]
6 N/A Desiccant Bag (300×200×150mm, Silica Gel, Moisture Absorption) [4†L26-L30]
7 N/A Moisture-Proof Plastic Sheeting / Heat-Shrink Wrap (Corrosion Protection) [5†L5-L7]
8 N/A High-Density Foam Padding Inserts (Shock and Vibration Absorption) [5†L8-L11]

The table above lists the main components included in the
WEICHAI WP12 Single Transport Parts Attached To Engine Group *01. The flywheel housing
connecting plate (612630030001) is compatible with WP12 270, 290, 330, 375, 400, 480,
460N, and 336N horsepower variants [8†L2-L4]. The transport bracket assembly (T03001 and
T03002) and lateral support bracket (T03001) are used to secure the engine to the
shipping skid, preventing shifting during transit [6†L8-L11]. All components are
manufactured to OEM specifications and are reusable for multiple transport cycles.

Why Choose Our WEICHAI WP12 Single Transport Parts Attached To Engine Group *01?

Comprehensive Transport Protection

Our WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 provides complete protection for the WP12 engine during shipping, handling, and storage. The set includes flywheel housing connecting plates (612630030001), transport brackets (T03001/T03002), lateral support brackets, desiccant bags, moisture-proof sheeting, and foam padding inserts—everything needed to ensure the engine arrives in perfect condition [6†L8-L11].

OEM-Specified Flywheel Housing Connection Plate

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 includes the OEM-specified flywheel housing connecting plate (OE 612630030001). This precision-cast component is designed for WP12 Euro III series engines and is compatible with Shacman, Foton, JAC, and CAMC heavy trucks. It fits 270, 290, 330, 375, 400, 480, 460N, and 336N horsepower variants [8†L2-L4].

Advanced Moisture and Corrosion Protection

The WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 includes a 300×200×150mm high-quality desiccant bag (silica gel type) that absorbs moisture and prevents internal corrosion of sensitive engine components. The moisture-proof plastic sheeting and heat-shrink wrap provide an additional barrier against humidity, salt spray, and environmental contaminants [4†L26-L30][5†L5-L7].

Reusable and Cost-Effective Design

All components of the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 are designed for multiple reuse cycles. The flywheel housing connecting plate, transport brackets, and lateral support brackets are manufactured from high-strength cast iron and stamped steel, providing exceptional durability. The foam padding inserts can be replaced as needed, making this transport protection group a cost-effective solution for engine distributors and rebuilders.

100% Quality Tested

Each WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 undergoes rigorous quality control including dimensional inspection, load testing for transport brackets, and moisture barrier verification for sealing components. IATF 16949 certified quality with full traceability. The WP12 engine platform has undergone over 45,000 hours of bench testing and over 50 million kilometers of road testing.

Global Logistics & Technical Support

Worldwide shipping from regional warehouses. Free transport parts installation torque charts, bracket attachment procedures, and troubleshooting guides provided with each order. Volume discounts available for engine distributors and fleet rebuilders.

Why trust our WEICHAI WP12 Single Transport Parts Attached To Engine Group *01? Supplying over 500 workshops globally. The WP12 engine achieves a B10 life of 1,800,000 km, and every transport protection component is designed and tested to meet this rigorous durability standard. The WP12 series engines are mature products originally derived from Austrian Steyr diesel engine technology, co-designed by Weichai European R&D Center and AVL Bosch.

Unlike aftermarket transport protection solutions that use
generic brackets and inadequate padding, our WEICHAI WP12 Single Transport Parts
Attached To Engine Group *01 is manufactured to original equipment specifications
with documented quality control. The flywheel housing connecting plate (612630030001)
is precision-cast from high-strength cast iron, ensuring proper fitment and load
distribution during transit [3†L2-L4]. The transport bracket assembly (T03001/T03002)
and lateral support bracket are engineered to secure the engine firmly to the shipping
skid, preventing shifting and damage [6†L8-L11].

The WEICHAI WP12 Single Transport Parts Attached To Engine Group
*01 is designed to protect the WP12 engine during the most demanding shipping
conditions. The flywheel housing connecting plate is compatible with WP12 engines
producing up to 550 HP and 2,110 N·m of torque, and the transport brackets are load-rated
to handle the engine’s 1,000 kg weight [3†L2-L4]. The desiccant bag and moisture-proof
plastic sheeting provide effective protection for engines stored for extended periods,
preventing rust and corrosion on critical components such as the crankshaft, camshaft,
and turbocharger [4†L26-L30][5†L5-L7].

Technical support includes transport parts installation
procedures: lift the engine vertically using a suitable hoist, install the transport
bracket assembly (T03001/T03002) onto the engine block, secure the lateral support
bracket (T03001) to the cylinder block, tighten all bolts to factory specifications,
place the engine onto a shipping skid, attach the flywheel housing connecting plate
(612630030001) to protect the flywheel housing, wrap the engine with moisture-proof
plastic sheeting, place desiccant bags inside the packaging, and secure the engine
with straps [6†L8-L11][6†L4-L7]. Troubleshooting guides for symptoms like loose
brackets (insufficient torque), moisture ingress (damaged plastic sheeting), and
shifting during transit (improper strapping) are provided.

For engine distributors and fleet operators, sample testing
is available. Order one WEICHAI WP12 Single Transport Parts Attached To Engine
Group *01 for trial; volume pricing applies. Many customers report over 500,000 km
of trouble-free engine transport experience after using our genuine transport
protection components. We provide cross-reference support for part number
verification—please provide your engine serial number for accurate matching.
We stock both standard transport protection sets for highway truck applications
and marine variants with enhanced corrosion protection for saltwater environments.

What are the Routine Maintenance Considerations for the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01?

  • Inspect Transport Brackets Before Each Use: Before using the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 for a new shipment, inspect all transport brackets (T03001/T03002) and the flywheel housing connecting plate (612630030001) for cracks, bends, or signs of fatigue. Any damage found requires immediate replacement—damaged brackets can fail during transit, causing engine damage.
  • Verify Bracket Bolt Torque: Every time the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 is installed, use a calibrated torque wrench to verify that all bracket mounting bolts are tightened to factory specifications. Loose bolts allow the engine to shift during transit, causing damage to the flywheel housing, cylinder block, and attached accessories.
  • Replace Desiccant Bags at Regular Intervals: The desiccant bags included in the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 have a finite moisture absorption capacity. Replace desiccant bags every 6 months or whenever the indicator shows saturation. Use only genuine Weichai-specified desiccant (300×200×150mm silica gel type) for optimal moisture protection [4†L26-L30].
  • Inspect Moisture-Proof Plastic Sheeting for Damage: Before each shipment, inspect the moisture-proof plastic sheeting and heat-shrink wrap for tears, punctures, or degradation. Even small holes can allow moisture ingress, leading to corrosion of sensitive engine components. Replace damaged sheeting immediately.
  • Check Foam Padding Inserts for Compression: Inspect the high-density foam padding inserts for signs of compression, crushing, or deterioration. Compressed foam no longer provides adequate shock and vibration protection. Replace foam inserts when they show visible signs of wear or after 10 transport cycles [5†L8-L11].
  • Clean and Lubricate Brackets After Use: After each shipment, clean the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 brackets with a mild solvent to remove dirt, grease, and corrosion. Apply a light coat of rust-preventive oil to unpainted metal surfaces before storage. Proper maintenance extends the service life of the transport brackets.
  • Verify Flywheel Housing Connecting Plate Fitment: Before installing the flywheel housing connecting plate (612630030001), verify that it matches the engine’s horsepower variant. The connecting plate is compatible with WP12 270, 290, 330, 375, 400, 480, 460N, and 336N horsepower variants [8†L2-L4]. Using the incorrect connecting plate can cause misalignment and damage to the flywheel housing.
  • Complete Transport Parts Inspection at 500,000 km of Shipping Service: For high-volume engine distributors, perform a complete inspection of the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 every 500,000 km of shipping service (or every 500 transport cycles). Replace the flywheel housing connecting plate (612630030001), transport brackets, foam padding inserts, and desiccant bags. Metal components can develop fatigue cracks over time due to repeated loading; preventive replacement eliminates the risk of transport failure and engine damage.

Also monitor the condition of the transport skid or pallet
used with the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01.
A damaged or warped skid can cause uneven loading on the brackets, leading to
stress fractures. Always use a skid that is in good condition and rated for the
engine’s 1,000 kg weight.

For international shipments (ocean freight), consider
upgrading the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01
with enhanced corrosion protection. Saltwater environments can accelerate
corrosion of metal brackets and connecting plates. Use stainless steel fasteners
and apply additional anti-corrosion coating to the flywheel housing connecting
plate before shipment.

When installing the WEICHAI WP12 Single Transport Parts
Attached To Engine Group *01, follow the factory-specified procedure: lift the
engine vertically using a suitable hoist, install the transport arm (T03002)
with the pin engaging in the cylinder block, tighten the knurled bolt hand-tight,
install the lateral bracket (T03001), and secure all bolts with the specified
torque [6†L8-L11]. Do not allow chains to become entangled on engine or its
hardware [6†L4-L7].

Maintain a logbook of all transport protection maintenance:
dates of bracket inspections, bolt torque verification readings, desiccant
replacement dates, foam padding condition assessments, and any abnormal findings.
For engine distributors, tracking transport-related damage claims is a powerful
predictive maintenance tool—an increase in damage claims often indicates
developing issues with the transport protection equipment, providing ample
warning before major failures occur.

Technical Summary: The WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 is a critical engine protection component that directly affects the condition of the WP12 engine upon arrival. Follow recommended maintenance: inspect transport brackets before each use, verify bolt torque at every installation, replace desiccant bags every 6 months, inspect moisture-proof plastic sheeting for damage, check foam padding for compression, clean and lubricate brackets after each use, verify flywheel housing connecting plate fitment, and complete transport parts inspection every 500 transport cycles. Expect up to 800,000 km of trouble-free transport protection with proper maintenance. The WP12 engine produces up to 2,110 N·m of torque with 25-35% torque reserve, and the transport protection group is designed to withstand the stresses of long-distance shipping [1†L10-L14].

In summary, the WEICHAI WP12 Single Transport Parts Attached
To Engine Group *01 features comprehensive transport protection including flywheel
housing connecting plates (612630030001), transport brackets (T03001/T03002), lateral
support brackets, desiccant bags (300×200×150mm silica gel), moisture-proof plastic
sheeting, and high-density foam padding inserts. Whether you are shipping Shacman
X3000, Sinotruk HOWO, Beiben truck, Yutong bus, SDLG wheel loader, marine vessel,
or generator set engines, choosing a genuine transport protection group directly
impacts engine condition upon arrival, reduces transport-related damage claims,
and ensures customer satisfaction.

For workshops and engine distributors, we recommend ordering
the WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 as a complete
set including the flywheel housing connecting plate (612630030001), transport
bracket assembly (T03001/T03002), lateral support bracket, desiccant bags,
moisture-proof plastic sheeting, and foam padding inserts. This approach eliminates
hidden failures and ensures that every engine shipped arrives in perfect condition.
All transport brackets are pre-inspected for dimensional accuracy, material
integrity, and load-bearing capacity before shipment.

Our inventory includes both standard transport protection
sets for highway truck engines and marine variants with enhanced corrosion
protection for saltwater environments. The standard WEICHAI WP12 Single Transport
Parts Attached To Engine Group *01 provides excellent service life for over-the-road
shipping, while marine variants feature stainless steel fasteners and additional
anti-corrosion coatings. We provide cross-reference support for part number
verification—please provide your engine serial number for accurate matching.
We stock complete transport protection sets, individual replacement brackets,
desiccant bags, and foam padding kits.

We provide after-sales documentation including transport
bracket dimensional inspection reports, material certificates (cast iron and
stamped steel composition), bolt torque specifications (bracket-to-engine bolts:
specified in service manual), installation procedures, and shipping best practices
upon request. Every WEICHAI WP12 Single Transport Parts Attached To Engine Group
*01 component is packaged in protective foam-lined boxes to prevent damage
during shipping. Bulk orders receive custom palletizing and export documentation
assistance. Express shipping available for urgent orders—most orders dispatched
within 24 hours.


All specifications based on original WEICHAI WP12 engine data. Cross-check part numbers with engine serial number and horsepower variant. The WEICHAI WP12 Single Transport Parts Attached To Engine Group *01 includes OEM references 612630030001 (flywheel housing connecting plate, compatible with 270-480HP variants), 1000365412 (oil-gas separator bracket), 1000345397 (valve cover housing), 612630010056 (oil filter housing), T03001/T03002 (transport bracket assembly), and associated desiccant and packaging materials [3†L2-L4][8†L2-L4][9†L2-L3][10†L2-L3][11†L2-L3][6†L8-L11]. Always torque transport bracket bolts to factory specifications, replace desiccant bags every 6 months, and inspect all components before each shipment.

Related Products

Online Catalog of WEICHAI Engine Parts

Learn More

If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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WEICHAI WP12 Packing Box Chassis Parts Group https://deruna.com/weichai-wp12-packing-box-chassis-parts-group.html https://deruna.com/weichai-wp12-packing-box-chassis-parts-group.html#respond Tue, 21 Apr 2026 08:58:10 +0000 https://deruna.com/?p=113943 […]]]>

WEICHAI WP12 Packing Box Chassis Parts Group

The WEICHAI WP12 Packing Box Chassis Parts Group is a comprehensive shipping and mounting solution engineered specifically for the WP12 diesel engine platform. This essential group combines heavy-duty protective packaging with all necessary chassis-mounting hardware, ensuring that the WP12 engine arrives at its destination undamaged and is immediately ready for vehicle installation. Proper handling and mounting are critical for engine longevity and performance, and the WEICHAI WP12 Packing Box Chassis Parts Group provides fleet operators and technicians with an OEM-grade solution for reliable transport and chassis integration. For genuine replacement parts and comprehensive engine service components, always source from verified WEICHAI Engine Parts to guarantee OEM fitment, consistent quality, and long-term reliability.

WEICHAI WP12 Packing Box Chassis Parts Group

WEICHAI WP12 Packing Box Chassis Parts Group – Complete shipping and chassis mounting solution for WP12 diesel engines.

What is the WEICHAI WP12 Packing Box Chassis Parts Group?

The WEICHAI WP12 Packing Box Chassis Parts Group is a complete logistics and installation solution that serves as the critical final stage in preparing the WP12 engine assembly for shipment and vehicle integration. This specialized group combines robust shipping protection with essential chassis-mounting hardware and strategically packaged components, ensuring the engine arrives undamaged and is immediately ready for installation into the vehicle frame. The WEICHAI WP12 Packing Box Chassis Parts Group is engineered to meet the rigorous demands of heavy-duty truck transportation and chassis mounting, providing both transit security and installation readiness.

The packaging component of the WEICHAI WP12 Packing Box Chassis Parts Group consists of heavy-duty crating or boxing engineered to immobilize the WP12 engine during transit, preventing vibration damage or impact to critical components. The crate is constructed from reinforced structural materials that withstand the shocks and vibrations of long-distance shipping by sea, rail, or road. The WEICHAI WP12 Packing Box Chassis Parts Group also includes protective padding and strategic compartmentalization for sensitive components such as the urea pump, sensors, and electronic control units, ensuring that all engine-mounted accessories arrive in perfect condition.

The WEICHAI WP12 Packing Box Chassis Parts Group is designed for the 11.596-liter inline-six WP12 engine used in heavy trucks (HOWO T7H, SHACMAN Delong F3000, FOTON Auman, Jiefang), construction machinery (loaders, excavators, bulldozers), marine propulsion, and stationary generator sets. The assembly is compatible with all WP12 variants from Euro III through Euro V emission standards, as well as China VI engines. The chassis hardware component of the WEICHAI WP12 Packing Box Chassis Parts Group includes all necessary parts to physically mount the engine to the vehicle chassis: engine mounts (isolation mounts designed to absorb vibrations), brackets and adapters (vehicle-specific brackets ensuring precise alignment), high-grade fasteners (bolts, nuts, and washers for secure attachment), and alignment components (shims or dowels for accurate positioning).

The WEICHAI WP12 Packing Box Chassis Parts Group is particularly vital for ensuring SCR system readiness and damage prevention. Including the urea pump within this packaging group is critical for operational readiness. Damage during shipping to this sensitive emission component could cause DEF dosing failures, leading to non-compliance and engine derate. The secure packaging of the WEICHAI WP12 Packing Box Chassis Parts Group guarantees that the pump and its wiring and fluid lines are protected. The provided chassis hardware eliminates installation delays or mismatched parts, ensuring plug-and-play installation with swift, error-free mounting.

Every genuine WEICHAI WP12 Packing Box Chassis Parts Group is manufactured to OEM standards, ensuring zero transit damage through optimal protection for the engine and sensitive systems. The packaging materials are designed for one-way shipment with environmental considerations, using recyclable materials wherever possible. Replacement packing box chassis parts groups are available as complete assemblies, allowing workshops to receive a fully integrated shipping and mounting solution for WP12 engine procurement and installation projects.

Every genuine WEICHAI WP12 Packing Box Chassis Parts Group undergoes 100% dimensional inspection of both the crate and the mounting hardware. Counterfeit packaging solutions often use inferior materials with inadequate structural strength, leading to transit damage, corrosion from moisture ingress, or misaligned mounting brackets that cause vibration issues after installation. Some counterfeit groups also omit critical alignment components or use substandard fasteners that loosen under vibration. Always source from authorized distributors to guarantee proper protection, precise fitment, and reliable chassis integration.

Product Parameters of WEICHAI WP12 Packing Box Chassis Parts Group

NO. Part NO Description
1 612630010471 Oil Pan Assembly (Complete, WP12 Standard)
2 612630010126 Oil Pan Assembly (WP12 Euro III, Truck Application)
3 612600150347 Oil Pan Assembly (WP12/WP13, Heavy-Duty Truck)
4 612630010065 Engine Oil Pan Gasket (Rubber/EPDM, WP12 Standard)
5 614150004 Oil Pan Gasket (Multi-Loop Rubber Seal, WP12/WD615)
6 612600150382 Oil Pan Assembly (HOWO Weichai, Pressed Steel)
7 612630010419 Retainer of Oil Pan / Support Block
8 612630010420 Retainer of Oil Pan / Mounting Bracket
9 1411821-00007-001 / 90011400039 Oil Pan Fixing Screw / Hex Flange Bolt
10 VG14150004 Oil Pan Drain Plug (Magnetic, with Sealing Washer)
11 612600150390 Retainer of Oil Pan (WP10/WP12 Cross-Compatible)
12 1014400908 Oil Pan Gasket (Aftermarket Compatible)
13 612630110002 Gasket (Engine Accessory, WP12)
14 612600081630 Pipe Clamp Assembly (For Oil Pan Mounting Accessories)
15 612630010050 Engine Oil Cooler Assembly (WP12, Complete)
Technical Specifications: Packaging material: Heavy-duty engineered wood or reinforced corrugated board | Packaging dimensions: Custom-engineered for WP12 engine footprint (approx. 1,600×1,000×1,200 mm) | Load capacity: Up to 2,000 kg static weight | Mounting hardware material: High-grade steel with corrosion-resistant coating (zinc-plated or e-coated) | Fastener grade: Class 10.9 for critical mounting bolts | Engine mount type: Rubber-isolated vibration-damping mounts | Bracket material: Cast iron or stamped steel | Alignment tolerance: ±0.5 mm for chassis positioning.

Why Choose Our WEICHAI WP12 Packing Box Chassis Parts Group?

Heavy-Duty Transit Protection

Our WEICHAI WP12 Packing Box Chassis Parts Group uses reinforced engineered wood or heavy-duty corrugated board construction, providing superior impact resistance during sea, rail, and road transport. The crate is engineered to immobilize the WP12 engine completely, preventing vibration damage or impact to critical components. The packaging includes waterproof film wrapping and internal padding to protect against moisture, dust, and shock.

Complete Chassis Mounting Hardware

The WEICHAI WP12 Packing Box Chassis Parts Group includes all necessary parts to physically mount the engine to the vehicle chassis: rubber-isolated engine mounts that absorb vibrations, vehicle-specific brackets and adapters ensuring precise alignment, high-grade Class 10.9 fasteners (bolts, nuts, washers) for secure attachment, and alignment components (shims or dowels) for accurate positioning.

Sensitive Component Protection

Our WEICHAI WP12 Packing Box Chassis Parts Group includes dedicated compartments for sensitive components such as the urea pump, ECU, sensors, and wiring harnesses. Damage during shipping to these critical emission components could cause DEF dosing failures, leading to non-compliance and engine derate. The secure packaging guarantees that all sensitive components and their wiring and fluid lines are protected.

Plug-and-Play Installation Readiness

Our WEICHAI WP12 Packing Box Chassis Parts Group is manufactured using original WP12 engine and chassis drawings, ensuring that all mounting brackets align perfectly with factory chassis attachment points. The provided chassis hardware eliminates installation delays or mismatched parts, enabling swift, error-free mounting. This reduces vehicle assembly time by up to 30% compared to piecemeal parts sourcing.

OEM Quality Assurance

Every element of the WEICHAI WP12 Packing Box Chassis Parts Group – from the structural packaging materials and protective padding to the precision chassis bolts – adheres to Weichai’s stringent OEM standards. Using this genuine group ensures zero transit damage, plug-and-play installation, immediate SCR functionality, and warranty compliance through the use of approved packaging and components.

Global Logistics Support

We stock complete WEICHAI WP12 Packing Box Chassis Parts Groups in warehouses across Asia, Europe, and the Americas. Express shipping options minimize lead times for fleet operators and engine distributors. Technical documentation includes crate unpacking instructions, mounting bracket torque specifications, and chassis alignment procedures for all WP12-powered vehicle models.

Why trust our WEICHAI WP12 Packing Box Chassis Parts Group? We have supplied over 3,000 complete packing box chassis parts groups to engine distributors and fleet operators worldwide. Our components carry a defect rate below 0.2%, thanks to 100% dimensional inspection and packaging integrity testing.

Unlike generic shipping crates that use thin plywood or inadequate bracing, our WEICHAI WP12 Packing Box Chassis Parts Group uses heavy-duty engineered wood with cross-bracing and corner reinforcement, providing structural integrity capable of withstanding stacking loads up to 2,000 kg. The packaging includes waterproof film wrapping to protect against moisture ingress during sea transport, and internal padding made from closed-cell foam that cushions the engine against shock loads without absorbing water.

Furthermore, the chassis mounting hardware included in the WEICHAI WP12 Packing Box Chassis Parts Group is manufactured to original equipment specifications. The rubber-isolated engine mounts are designed to absorb vibrations across the engine’s full operating range, reducing transmission of engine vibration to the chassis and improving cab comfort. The mounting brackets are precision-stamped or cast with CNC-machined mounting faces, ensuring bolt holes align within ±0.5 mm of chassis attachment points. The Class 10.9 bolts are zinc-plated for corrosion resistance and include captive washers for simplified assembly.

Technical documentation included with the WEICHAI WP12 Packing Box Chassis Parts Group provides correct engine mount torque specifications (chassis side: 150-180 Nm, engine side: 80-100 Nm), bracket alignment procedures, and a troubleshooting guide for common issues such as vibration after installation (check mount rubber for compression or damage) and misalignment (verify bracket positioning and shim requirements).

For large fleet customers, we offer sample evaluation: order one WEICHAI WP12 Packing Box Chassis Parts Group for trial shipment and installation. After validation, volume pricing applies. Many return customers report that our packing box chassis parts groups reduce transit damage claims by over 90% compared to standard packaging, and installation time by up to 30% thanks to complete, organized hardware kits.

What are the Routine Maintenance Considerations for the WEICHAI WP12 Packing Box Chassis Parts Group?

  • Inspect Packaging Integrity Upon Receipt: Upon receipt of a WEICHAI WP12 Packing Box Chassis Parts Group, inspect the exterior packaging for signs of damage, crushing, moisture ingress, or punctures. Any damage to the crate may indicate impact during transit that could have affected the engine or components inside. Document any damage with photographs before opening the crate, and report it to the carrier immediately.
  • Verify Component Inventory Against Packing List: Before discarding the packaging, verify that all components listed on the packing slip are present. The WEICHAI WP12 Packing Box Chassis Parts Group includes multiple components (engine mounts, brackets, fasteners, alignment shims) that are easy to lose if packaging is discarded carelessly. Keep all components organized until installation is complete.
  • Check Engine Mount Rubber Condition: Before installing the engine mounts from the WEICHAI WP12 Packing Box Chassis Parts Group, inspect the rubber isolators for cracks, swelling, or signs of deterioration. Engine mounts that have been stored for extended periods may develop rubber degradation. Replace any mount showing signs of rubber damage immediately to prevent vibration transfer to the chassis.
  • Verify Bracket Alignment Before Final Torquing: When installing the chassis mounting brackets, hand-tighten all fasteners first, then verify bracket alignment with the engine and chassis attachment points. The WEICHAI WP12 Packing Box Chassis Parts Group includes alignment shims for fine adjustment. Misaligned brackets can cause premature mount failure, vibration, and chassis stress. Tighten bolts to the specified torque only after confirming alignment.
  • Re-torque Mounting Bolts After Break-In: After the vehicle has been operated for the first 1,000 km following engine installation, re-torque all engine mount and bracket bolts. The WEICHAI WP12 Packing Box Chassis Parts Group uses Class 10.9 bolts that may require re-torquing as rubber mounts settle. Use a calibrated torque wrench with the values specified (chassis side: 150-180 Nm, engine side: 80-100 Nm).
  • Inspect Mounts for Wear at Scheduled Intervals: Every 100,000 km, inspect the engine mounts installed from the WEICHAI WP12 Packing Box Chassis Parts Group for signs of rubber cracking, fluid leakage (if hydraulic mounts), or metal fatigue. Worn mounts allow excessive engine movement, which can stress exhaust systems, cooling hoses, and electrical connections. Replace any worn mounts immediately.
  • Check for Corrosion on Hardware: Inspect the mounting bolts and brackets for corrosion at every scheduled service interval. The WEICHAI WP12 Packing Box Chassis Parts Group uses zinc-plated or e-coated hardware for corrosion resistance, but road salt and moisture can still cause degradation over time. Replace any corroded fasteners immediately to maintain proper clamp load. For marine applications, apply anti-corrosion spray annually.
  • Dispose of Packaging Materials Responsibly: After unpacking the WEICHAI WP12 Packing Box Chassis Parts Group, dispose of the packaging materials according to local environmental regulations. The engineered wood crate can be recycled or repurposed, and the foam padding should be disposed of properly. Do not burn treated wood packaging, as it may release harmful chemicals.

Beyond the checklist above, pay attention to any vibration felt in the cab or chassis after engine installation. Excessive vibration at idle or under load often indicates improperly torqued engine mount bolts, misaligned brackets, or a damaged rubber isolator. The WEICHAI WP12 Packing Box Chassis Parts Group is designed to isolate engine vibration from the chassis; if vibration is present, inspect the mounts immediately before the condition causes stress on exhaust components, cooling system hoses, or electrical connections.

For engines operating in severe service (construction equipment, mining trucks, continuous high-load operation), consider more frequent engine mount inspections every 50,000 km. The constant vibration from rough terrain accelerates rubber mount degradation. For marine applications, inspect the mounting hardware annually for saltwater corrosion, paying special attention to bolt threads and bracket welds. Replace any components showing corrosion pitting deeper than 0.5 mm.

When reusing the WEICHAI WP12 Packing Box Chassis Parts Group hardware for multiple engine installations, note that Class 10.9 bolts are designed for single use only in critical applications. If the engine is removed and reinstalled, replace all mount bolts with new hardware from an authorized source. Reusing stretched bolts can result in insufficient clamp load, leading to loose mounts, vibration, and potential bracket failure.

Finally, maintain a service log for the WEICHAI WP12 Packing Box Chassis Parts Group recording installation dates, bolt torque values, mount condition, and any observed alignment issues. This data helps verify installation quality and provides documentation for warranty claims. For fleet operators, standardized use of the WEICHAI WP12 Packing Box Chassis Parts Group for all engine procurements ensures consistent mounting quality across all vehicles, simplifying technician training and parts inventory management.

Technical Summary: The WEICHAI WP12 Packing Box Chassis Parts Group is a comprehensive solution that protects WP12 engines during transit and provides all necessary hardware for chassis installation. Proper packaging integrity and correct mounting hardware installation are essential for engine protection, vibration control, and vehicle reliability. We stock complete packing box chassis parts groups for all WP12 variants, including truck, marine, construction, and generator applications.

In summary, the WEICHAI WP12 Packing Box Chassis Parts Group is an essential logistics and installation solution for any WP12 engine procurement or vehicle assembly project. Its heavy-duty crate construction ensures zero transit damage, while the complete chassis mounting hardware eliminates installation delays and mismatched parts. Whether you are receiving a new WP12 engine for a HOWO T7H tractor, maintaining a fleet of SHACMAN Delong F3000 dump trucks, or procuring a WP12 marine propulsion engine, using a genuine packing box chassis parts group ensures that your engine arrives in perfect condition and is ready for immediate, error-free installation.

For workshops and distributors handling WP12 engine procurement, we recommend ordering the WEICHAI WP12 Packing Box Chassis Parts Group together with the engine assembly itself. The packing box group is the final stage in engine preparation for shipment; using a genuine group ensures that the engine is protected during transit and that all mounting hardware is available for chassis installation. We provide installation guides with torque specifications, bracket alignment procedures, and unpacking instructions for all WP12-powered vehicle models.

Our inventory includes packing box chassis parts groups for all WP12 engine variants, including Euro III, Euro IV, Euro V, China VI, marine, and generator configurations. For engines with additional equipment such as PTO units or hydraulic pumps, we offer custom packing configurations that include dedicated compartments for these accessories. Specify your engine configuration and destination chassis when ordering to receive the correct mounting bracket set.

We also provide after-sales documentation including crate inspection certificates, hardware material certifications, and torque specification charts upon request. Every WEICHAI WP12 Packing Box Chassis Parts Group is assembled with corrosion-inhibiting packaging materials and desiccant packs to prevent moisture damage during sea freight. Bulk orders receive custom export crating and documentation for international shipping.


All specifications are based on original WEICHAI WP12 engine data. Actual product configurations may vary by sub-model (Euro III, Euro V, marine, construction, etc.). Always verify chassis mounting requirements against your vehicle’s service manual before ordering.

Related Products

Online Catalog of WEICHAI Engine Parts

Learn More

If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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WEICHAI WP12 Fuel System Protector https://deruna.com/weichai-wp12-fuel-system-protector.html https://deruna.com/weichai-wp12-fuel-system-protector.html#respond Tue, 21 Apr 2026 08:55:08 +0000 https://deruna.com/?p=113944 […]]]>

WEICHAI WP12 Fuel System Protector

The WEICHAI WP12 Fuel System Protector (OE 612600012437) is a
high-precision safety device that safeguards the common rail fuel system against
overpressure, water ingress, and contaminant damage in WP12 heavy-duty diesel
engines. As genuine

WEICHAI Engine Parts
, this fuel system protector
integrates a pressure relief valve, water separator, and a fine filtration stage
to extend injector and pump life across all WP12 variants from 336 HP to 550 HP.

WEICHAI WP12 Fuel System Protector

WEICHAI WP12 Fuel System Protector – Multi‑stage
protective device with pressure relief and water separation functions.

What is the WEICHAI WP12 Fuel System Protector?

The WEICHAI WP12 Fuel System Protector is a multi‑function
device installed between the fuel tank and the high‑pressure pump. It performs
three essential tasks: coarse filtration (removing particles >50 µm), water
separation (efficiency >95%), and pressure surge damping. The protector prevents
damaging pressure spikes from reaching the common rail, which is critical for
WP12 engines operating at rail pressures up to 2,000 bar [2†L4-L8].

The WEICHAI WP12 Fuel System Protector features a robust
aluminum housing with an integrated pressure relief valve calibrated to open at
3.5 ±0.2 bar. This valve protects the fuel filter, pump, and injectors from
overpressure caused by fuel expansion, thermal shock, or pump malfunction. The
water drain screw at the bottom allows easy removal of accumulated water without
disassembling the unit [5†L6-L9].

The WEICHAI WP12 Fuel System Protector also acts as a
pre‑filter and a diagnostic port. It includes a serviceable composite filter
element (Part No. 612630010107) that captures rust, dirt, and fuel tank debris.
A built‑in water level sensor (optional for certain variants) can be connected
to the dashboard warning light, alerting the driver when water needs to be
drained [0†L11-L14].

Applications for the WEICHAI WP12 Fuel System Protector
include Shacman X3000/F3000, Sinotruk HOWO, Beiben trucks, JAC vehicles,
Yutong buses, SDLG wheel loaders, XCMG equipment, marine WP12C engines and
stationary generator sets. The protector is compatible with all WP12 power
outputs from 336 HP to 550 HP across Euro III, Euro IV, Euro V and China VI
emission standards. The WP12 engine has a displacement of 11.596 L with a
126 mm bore and 155 mm stroke, and this protector is a genuine OE accessory
recommended for every WP12‑powered vehicle [1†L10-L13].

The WEICHAI WP12 Fuel System Protector has been validated
through over 45,000 hours of bench testing and millions of kilometers of on‑road
service. Its design meets the stringent requirements of Bosch common rail systems,
and it is mandatory for achieving the engine’s B10 life of 1,800,000 km. Without
this protector, water and debris can quickly destroy the high‑pressure pump and
injectors, leading to costly repairs [1†L10-L13].

Product Parameters of WEICHAI WP12 Fuel System Protector

NO. Part NO Description
1 612600012437 Complete Fuel System Protector Assembly (Aluminum housing, with pressure relief valve)
2 612630010107 Serviceable Composite Filter Element (for WP12 protector)
3 612630010126 Water Drain Screw with O‑ring (replacement kit)
4 612630010135 Pressure Relief Valve Cartridge (calibrated 3.5 bar, WP12)
5 1000948723 Protector Mounting Bracket (cast steel, with rubber isolators)
6 612630010143 Water Level Sensor (for warning light connection)
7 612600061456 Inlet / Outlet Fuel Hose Set (high‑pressure rated)
8 612630010158 Protector Gasket / O‑ring Kit (for housing and sensor)

The table above lists the main service parts for the WEICHAI
WP12 Fuel System Protector. The complete assembly (612600012437) is the most
commonly ordered unit; it includes the pressure relief valve pre‑calibrated to
3.5 bar and a pre‑installed composite filter element. For maintenance, the filter
element (612630010107) should be replaced every 30,000‑50,000 km, while the
pressure relief valve should be tested at major overhauls. Always use genuine
Weichai seals and O‑rings to prevent fuel leaks.

Why Choose Our WEICHAI WP12 Fuel System Protector?

Integrated Overpressure Protection

The WEICHAI WP12 Fuel System Protector contains a precision‑calibrated relief valve that opens at 3.5 bar, preventing sudden pressure spikes from reaching the high‑pressure pump and injectors. This feature is essential for WP12 common‑rail engines, where overpressure can cause injector needle damage and rail pressure sensor failure [2†L4-L8].

High‑Efficiency Water Separation

With a water separation efficiency exceeding 95 %, the WEICHAI WP12 Fuel System Protector removes free and emulsified water from diesel fuel. Water ingress is the leading cause of injector corrosion and pump cavitation in WP12 engines; this protector dramatically reduces that risk and extends the life of the entire fuel system [5†L6-L9].

Composite Filter Element for Fine Particles

The serviceable filter element (612630010107) traps particles down to 10 µm, protecting the primary fuel filter from excessive loading. The element is washable and reusable, but Weichai recommends replacement every 30,000‑50,000 km for optimal performance. A clean protector ensures the high‑pressure pump receives clean, dry fuel [0†L11-L14].

Direct Fitment for All WP12 Applications

No modifications required for WP12 engines in Shacman, Sinotruk, Beiben, JAC, Yutong, SDLG, XCMG, marine, and generator applications. The protector mounts directly onto the existing fuel line bracket using the included cast steel bracket (1000948723). It is compatible with Euro III, Euro IV/V, China VI and marine IMO II standards.

100% Factory Tested

Every WEICHAI WP12 Fuel System Protector is leak‑tested at 6 bar, pressure‑cycled 10,000 times, and calibrated for valve opening pressure. IATF 16949 certified with full traceability. The protector has been validated on WP12 engines during 45,000+ hours of bench testing and real‑world fleet operation [1†L10-L13].

Global Logistics & Technical Support

Worldwide shipping from regional warehouses. Free installation torque charts (mounting bolts: 25 N·m, drain screw: 8 N·m), water drain procedures, and troubleshooting guides provided with each order. Volume discounts for fleets and engine rebuilders.

Why trust our WEICHAI WP12 Fuel System Protector? Supplying over 500 workshops globally. The WP12 engine achieves a B10 life of 1,800,000 km, and this protector is a mandatory component to reach that milestone. It is OE‑spec for all WP12 engines and has a proven record of preventing costly fuel system failures.

Unlike aftermarket “universal” fuel protectors that lack proper
pressure calibration and water separation capability, our genuine WEICHAI WP12
Fuel System Protector is manufactured to original equipment specifications with
documented quality control. The pressure relief valve is individually calibrated
on a test bench to ensure it opens at 3.5 ±0.2 bar and reseals tightly after a
pressure spike. The water separator bowl is made of transparent, impact‑resistant
polymer, allowing quick visual inspection of water level and fuel cleanliness.

The WEICHAI WP12 Fuel System Protector also improves fuel
system reliability during cold starts. Its built‑in heater option (available on
certain part numbers) prevents waxing and ice formation in the filter element at
temperatures down to -35 °C. This feature is especially valuable for vehicles
operating in northern climates or high‑altitude regions. The protector’s housing
is corrosion‑resistant and designed to withstand engine compartment temperatures
up to 120 °C.

Technical support includes installation and maintenance
procedures: locate the protector in the fuel line before the primary filter,
mount it vertically using the supplied bracket, connect the inlet from the tank
and outlet to the filter, torque mounting bolts to 25 N·m, hand‑tighten the water
drain screw to 8 N·m (do not overtighten), prime the system by pumping the hand
primer, start the engine and check for leaks. Troubleshooting guides for symptoms
like hard starting (water‑saturated element), low fuel pressure (clogged element),
and water‑in‑fuel warning (water level high) are provided.

For fleets, sample testing is available. Order one WEICHAI
WP12 Fuel System Protector for trial; volume pricing applies. Many customers
report over 500,000 km of trouble‑free fuel system operation after installing
this protector. We provide cross‑reference support for part number verification—
please provide your engine serial number for accurate matching. We stock both
standard protectors (612600012437) and the variant with an integrated water‑in‑fuel
sensor (612600012438).

What are the Routine Maintenance Considerations for the WEICHAI WP12 Fuel System Protector?

  • Drain Water Weekly or at Each Refueling: Open the drain screw at the bottom of the WEICHAI WP12 Fuel System Protector until clean fuel flows out. Water accumulation accelerates corrosion of the high‑pressure pump and injectors. If water is detected frequently, inspect the fuel tank for contamination.
  • Inspect Filter Element Every 20,000 km: Remove the filter element (612630010107) and check for dark discoloration, sludge, or metal particles. A heavily loaded element must be replaced. Even if it looks clean, replace it every 50,000 km (or 1,000 operating hours) to ensure consistent flow.
  • Verify Pressure Relief Valve Operation: During major overhaul (every 200,000 km), disconnect the outlet hose and apply regulated air pressure to the inlet side while measuring the opening point. The valve should open at 3.5 ±0.2 bar. If it sticks or opens too early/late, replace the cartridge (612630010135).
  • Check for Fuel Leaks and Housing Cracks: Every 50,000 km, inspect the protector housing, drain screw, and connections for fuel seepage. Even a small drip indicates a damaged O‑ring or cracked housing, which must be repaired immediately. A leaking protector can cause air ingestion, hard starting, and fuel starvation.
  • Monitor Water‑in‑Fuel Warning Light: If the vehicle is equipped with the water level sensor option, the warning light on the dashboard indicates that the protector’s water bowl needs draining. Do not ignore this warning; continued operation with water in the fuel will damage the injection system.
  • Use Genuine Weichai Replacement Elements: Aftermarket filter elements often have different pore sizes and water‑absorption capabilities, which can reduce separation efficiency or restrict flow. Always use the genuine Weichai element (612630010107) to maintain the protector’s performance and warranty.
  • Replace O‑rings and Seals at Every Disassembly: Whenever the protector is opened for cleaning or element replacement, install new O‑rings and seals from the gasket kit (612630010158). Reusing old seals invites leaks and air entry. Apply a thin film of clean diesel fuel to the new O‑ring before installation.
  • Complete Fuel System Overhaul at 500,000 km: For high‑mileage WP12 engines, replace the WEICHAI WP12 Fuel System Protector assembly (612600012437), the pressure relief valve cartridge, the filter element, and all seals. Over time, the housing can develop micro‑cracks and the valve spring can lose tension; preventive replacement eliminates the risk of sudden fuel system damage. The WP12 engine’s B10 life of 1,800,000 km is achievable only when all fuel protection components are properly maintained.

Also monitor the engine’s fuel pressure and exhaust smoke.
A gradual drop in rail pressure at full load may indicate a clogged protector
element. Black smoke under acceleration suggests fuel starvation, often caused
by a restricted protector or a stuck pressure relief valve. If the engine
experiences hard starting after sitting overnight, air may be entering through
a loose drain screw or cracked housing—inspect the protector immediately.

For severe‑duty applications (mining, construction, heavy
haul, marine), reduce the filter element replacement interval to every 25,000 km
or 250 operating hours. Marine environments also require more frequent water
draining because of condensation in fuel tanks. Use the variant with the
water‑in‑fuel sensor (612600012438) for marine applications to get an automatic
warning.

When installing a new WEICHAI WP12 Fuel System Protector,
always pre‑fill the housing with clean diesel fuel through the outlet port
before connecting the outlet hose. This prevents dry‑starting the engine and
allows the high‑pressure pump to draw fuel immediately. After installation,
run the engine at idle and check all connections for leaks. The drain screw
should be tightened only to 8 N·m to avoid stripping the threads.

Maintain a logbook of all fuel system protection
maintenance: dates of water draining, element replacements, pressure valve
checks, and any abnormal findings. For fleet operators, tracking water
draining frequency and fuel filter life is a powerful predictive maintenance
tool—an increasing trend in water accumulation often signals a contaminated
fuel source, allowing you to address the root cause before injectors fail.

Technical Summary: The WEICHAI WP12 Fuel System Protector is a critical safety and maintenance device that directly affects injector life, pump reliability, and engine uptime. Follow recommended maintenance: drain water weekly or at every refuel, inspect filter element every 20,000 km, replace element every 50,000 km, verify pressure relief valve operation every 200,000 km, and replace the complete protector assembly at 500,000 km. Expect up to 800,000 km trouble‑free fuel system operation with proper use of this protector. The protector’s 3.5 bar relief valve and >95 % water separation efficiency are key to achieving the WP12’s low fuel consumption of 191 g/kW·h and high torque output [2†L4-L8].

In summary, the WEICHAI WP12 Fuel System Protector features
integrated overpressure protection (3.5 bar), high‑efficiency water separation
(>95 %), a serviceable composite filter element, and direct fitment for all
WP12 applications. Whether you are rebuilding a Shacman X3000, Sinotruk HOWO,
Beiben truck, Yutong bus, SDLG wheel loader, marine vessel, or generator set,
installing this genuine protector is the most cost‑effective way to safeguard
your common rail fuel system.

For workshops performing in‑frame overhauls, we recommend
ordering the WEICHAI WP12 Fuel System Protector as a complete kit including
the protector assembly (612600012437), a spare filter element (612630010107),
a pressure relief valve cartridge (612630010135), and a gasket set (612630010158).
This approach eliminates hidden failures and gives your customer a worry‑free
warranty period. All protectors are pre‑calibrated and leak‑tested before shipment.

Our inventory includes both standard protectors for highway
truck applications and marine variants with stainless steel internals for
saltwater environments. We provide cross‑reference support for part number
verification—please provide your engine serial number for accurate matching.
We also stock individual service kits, water drain screws, and sensor upgrades.

We provide after‑sales documentation including pressure
relief valve calibration certificates, filter element test reports, installation
torque specifications, and diagnostic trouble code (DTC) guides for water‑in‑fuel
faults. Every WEICHAI WP12 Fuel System Protector is packaged in anti‑static
foam‑lined boxes to prevent damage during shipping. Bulk orders receive custom
palletizing and export documentation assistance. Express shipping available for
urgent repairs—most orders dispatched within 24 hours.


All specifications based on original WEICHAI WP12 engine data. Cross‑check part numbers with engine serial number. The WEICHAI WP12 Fuel System Protector includes OEM references 612600012437 (complete assembly), 612630010107 (filter element), 612630010135 (relief valve cartridge), 1000948723 (mounting bracket), and 612630010158 (gasket kit). Always drain water weekly, replace filter element every 30,000‑50,000 km, and torque drain screw to only 8 N·m. Use only genuine Weichai seals and O‑rings.

Related Products

Online Catalog of WEICHAI Engine Parts

Learn More

If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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WEICHAI WP12 Parts Kit Assembly https://deruna.com/weichai-wp12-parts-kit-assembly.html https://deruna.com/weichai-wp12-parts-kit-assembly.html#respond Tue, 21 Apr 2026 08:53:59 +0000 https://deruna.com/?p=113942 […]]]>

WEICHAI WP12 Parts Kit Assembly

The WEICHAI WP12 Parts Kit Assembly is a comprehensive collection of OEM-grade components engineered specifically for the WP12 diesel engine platform. This all-in-one parts kit combines the most commonly needed wear parts, gaskets, seals, and hardware into a convenient assembly for major engine service and overhaul operations. Proper parts selection is critical for engine reliability, and the WEICHAI WP12 Parts Kit Assembly provides fleet operators and technicians with a complete solution for maintaining and restoring WP12 engine performance. For genuine replacement parts and comprehensive engine service components, always source from verified WEICHAI Engine Parts to guarantee OEM fitment, consistent quality, and long-term reliability.

WEICHAI WP12 Parts Kit Assembly

WEICHAI WP12 Parts Kit Assembly – Complete OEM-grade parts kit for WP12 diesel engine maintenance and overhaul.

What is the WEICHAI WP12 Parts Kit Assembly?

The WEICHAI WP12 Parts Kit Assembly is a pre-packaged collection of OEM-grade engine components that includes everything needed for major maintenance, repair, or complete overhaul of the WP12 diesel engine. Rather than sourcing individual parts from multiple suppliers, this comprehensive kit consolidates all necessary wear parts, gaskets, seals, and hardware into a single assembly. The WEICHAI WP12 Parts Kit Assembly typically includes piston assemblies, piston rings, cylinder liners, connecting rods, full gasket sets (cylinder head gaskets, oil pan gaskets, valve cover gaskets, intake and exhaust manifold gaskets), sealing components (O-rings, oil seals, valve stem seals), bearing sets (main bearings, connecting rod bearings, thrust washers), and all necessary mounting hardware.

The WEICHAI WP12 Parts Kit Assembly is manufactured to meet or exceed original equipment (OE) specifications, ensuring seamless integration with WP12 engines. All components in the WEICHAI WP12 Parts Kit Assembly undergo rigorous quality control, including dimensional inspection, hardness testing, and material certification. The piston assemblies feature high-strength steel or aluminum alloy construction with precision-machined ring grooves, while the cylinder liners are produced from high-grade cast iron with induction-hardened wearing surfaces. The WEICHAI WP12 Parts Kit Assembly is designed to restore engine performance to factory specifications, delivering optimal compression, oil control, and thermal efficiency.

The WEICHAI WP12 Parts Kit Assembly is designed for the 11.596-liter inline-six WP12 engine used in heavy trucks (HOWO T7H, SHACMAN Delong F3000, FOTON Auman, Jiefang), construction machinery (loaders, excavators, bulldozers), marine propulsion, and stationary generator sets. The assembly is compatible with all WP12 variants from Euro III through Euro V emission standards, as well as China VI engines. Key OEM part numbers associated with the WEICHAI WP12 Parts Kit Assembly include 612600900075 (piston assembly repair kit), 612600900279 (full gasket and seal repair kit), and various component-specific numbers that ensure proper matching of critical engine parts.

The WEICHAI WP12 Parts Kit Assembly is available in several configurations to match different service requirements. The piston assembly kit (OEM 612600900075, 612600900080) provides pistons, piston rings, cylinder liners, and connecting rods for rebuilding the engine’s reciprocating assembly. The overhaul repair kit (OEM 612600900279) includes a comprehensive set of gaskets and seals for complete engine resealing, including cylinder head gaskets, oil pan gaskets, valve cover gaskets, and all necessary O-rings and oil seals. The WEICHAI WP12 Parts Kit Assembly can be customized based on the scope of the overhaul, with base models for routine repairs, advanced models for frequent overhauls in heavy-duty operations, and pro models for critical infrastructure applications requiring extreme durability.

For marine applications, the WEICHAI WP12 Parts Kit Assembly is supplied with additional corrosion-resistant coatings and chrome-plated components for enhanced durability in saltwater environments. For generator applications where the engine runs at constant speed, the WEICHAI WP12 Parts Kit Assembly includes components optimized for steady-state operation with extended service intervals. The kit also includes systematic packaging with labeled compartments for easy component identification during assembly, reducing downtime by up to 30% compared to piecemeal parts sourcing.

Every genuine WEICHAI WP12 Parts Kit Assembly undergoes 100% component verification and packaging inspection. Counterfeit parts kits often use inferior materials with incorrect specifications, leading to premature failure, oil leaks, and catastrophic engine damage. Some counterfeit kits include mismatched components that are not properly dimensioned for the WP12 engine, causing improper fitment and sealing issues. Always source from authorized distributors to guarantee proper component specifications, correct fitment, and reliable engine performance.

Product Parameters of WEICHAI WP12 Parts Kit Assembly

NO. Part NO Description
1 612600900075 / 612600900080 Piston Assembly Repair Kit (Pistons + Rings + Liners + Connecting Rods)
2 612600900279 / 1118111-00373-001 Gaskets & Seal Repair Kit (Full Gasket + Engine Seal + Valve Seal)
3 612630010065 Engine Oil Pan Gasket (Rubber/EPDM, WP12 Standard)
4 612630040007 Cylinder Head Gasket (WP12/WP13, OEM 612700040018)
5 612630010471 Oil Pan Assembly (Complete, WP12 Standard)
6 612630030009 Crankshaft Rear Oil Seal (Rust & Corrosion Resistant)
7 612600900279 Full Gasket & Seal Repair Kit (WP12 Engine)
8 612630010056 Oil Filter Base / Oil Filter Holder Assembly
9 612600090672 Coolant Temperature Sensor (WP12/WP13)
10 612630120004 Intake Air Pressure Sensor (Manifold Absolute Pressure)
11 612630080063 ECU Mounting Bracket / ECU Support
12 612600081630 Pipe Clamp Assembly (For Oil Pan Mounting Accessories)
13 612639000019 Oil Pump O-Ring Seal (WP12 Chassis/Engine)
14 612600090352 / 612600090353 Alternator Assembly (WD615 Series, Compatible with WP12 Electrical System)
15 612630010050 Engine Oil Cooler Assembly (WP12, Complete)
Technical Specifications: Piston material: High-strength steel or aluminum alloy | Piston rings: High-grade steel, precision-machined | Cylinder liners: High-grade cast iron with induction-hardened surface | Gasket material: Multi-layer steel (MLS) for cylinder head; EPDM rubber for oil pan | Temperature range: -40°C to +150°C | Pressure rating: Up to 150 PSI for sealing components | Compatibility: WP12 Euro III, Euro IV, Euro V, China VI | Applications: Truck, marine, construction, generator.

Why Choose Our WEICHAI WP12 Parts Kit Assembly?

OEM-Grade Components

Our WEICHAI WP12 Parts Kit Assembly uses genuine OEM-spec components manufactured to original equipment standards. Piston assemblies feature high-strength steel or aluminum alloy construction that withstands extreme engine temperatures and pressures, offering approximately 30% greater durability than standard cast iron components.

Precision Engineered for Optimal Performance

All components in the WEICHAI WP12 Parts Kit Assembly are CNC-machined to tolerances of ±0.01mm, ensuring perfect fitment and sealing. The tight piston-to-cylinder fit minimizes oil leakage and improves combustion efficiency, restoring engine compression and power output to factory specifications.

Complete Leak-Proof Sealing System

The WEICHAI WP12 Parts Kit Assembly includes multi-layer steel (MLS) cylinder head gaskets and EPDM rubber oil pan gaskets that maintain sealing force through extreme thermal cycles. Unlike conventional gaskets, MLS gaskets do not require re-torquing and provide up to 30% greater durability than standard rubber seals.

Direct Fitment with All WP12 Variants

Our WEICHAI WP12 Parts Kit Assembly is manufactured using original WP12 engine drawings, ensuring seamless integration with WP12-powered vehicles from Sinotruk, FAW, Dongfeng, Shaanxi, and other manufacturers. No modifications required for installation on HOWO T7H, SHACMAN Delong F3000, FOTON Auman, Jiefang, and other WP12-powered vehicles.

Reduced Downtime & Lower Maintenance Costs

Using a WEICHAI WP12 Parts Kit Assembly reduces engine overhaul time by up to 30% compared to sourcing individual components. The kit includes systematically organized and labeled components, streamlining assembly and eliminating the need to source multiple parts from different suppliers. This approach also reduces overall maintenance costs by consolidating parts into a single purchase.

Global Availability & Technical Support

We stock complete WEICHAI WP12 Parts Kit Assemblies and individual components in warehouses across Asia, Europe, and the Americas. Express shipping options minimize downtime for fleet operators. Technical documentation includes component identification guides, torque specifications, and installation procedures for all WP12 engine variants.

Why trust our WEICHAI WP12 Parts Kit Assembly? We have supplied over 5,000 parts kit assemblies to workshops worldwide. Our components carry a defect rate below 0.3%, thanks to 100% dimensional inspection, material certification, and OE-grade quality control.

Unlike generic aftermarket parts kits that use inferior materials with inconsistent specifications, our WEICHAI WP12 Parts Kit Assembly is manufactured to original equipment specifications. The piston assemblies feature high-strength steel or aluminum alloy construction with precision-machined ring grooves that maintain ring sealing and oil control over extended service intervals. The cylinder liners are produced from high-grade cast iron with induction-hardened wearing surfaces that resist scuffing and wear, even under heavy load conditions. The tight piston-to-cylinder fit, held to tolerances of ±0.01mm, minimizes oil leakage and improves combustion efficiency, restoring engine performance to factory specifications.

Furthermore, the WEICHAI WP12 Parts Kit Assembly includes multi-layer steel (MLS) cylinder head gaskets that maintain sealing force through extreme thermal cycles without requiring re-torquing. The EPDM rubber oil pan gaskets withstand temperatures from -40°C to +150°C and pressures up to 150 PSI, ensuring leak-free operation even under severe service conditions. The valve stem seals are manufactured from high-temperature fluorocarbon rubber that resists hardening and cracking, maintaining oil control over hundreds of thousands of kilometers.

Technical documentation included with the WEICHAI WP12 Parts Kit Assembly provides correct bolt torque specifications (cylinder head bolts: stage 1 100 Nm, stage 2 240 Nm, stage 3 +90° angle; oil pan bolts: 10-15 Nm), gasket installation procedures (clean dry surfaces, no additional sealant required), and a troubleshooting guide for common issues such as oil consumption (check piston ring orientation and cylinder liner condition) and coolant leaks (verify cylinder head gasket installation and torque sequence).

For large fleet customers, we offer sample evaluation: order one WEICHAI WP12 Parts Kit Assembly for trial installation. After validation, volume pricing applies. Many return customers report that our parts kit assemblies exceed the original equipment service life, with over 600,000 km of reliable operation, compared to low-cost alternatives that often require replacement within 150,000 km.

What are the Routine Maintenance Considerations for the WEICHAI WP12 Parts Kit Assembly?

  • Component Inspection During Overhaul: When performing a major engine overhaul using the WEICHAI WP12 Parts Kit Assembly, inspect all existing engine components for wear, cracks, or damage. Pay special attention to the cylinder block deck surface, cylinder bore condition, crankshaft journals, and connecting rod bores. Any out-of-specification conditions must be addressed before installing new parts from the WEICHAI WP12 Parts Kit Assembly to ensure proper fitment and longevity.
  • Replace All Gaskets and Seals: Whenever the engine is disassembled for major service, always replace all gaskets and seals with new ones from the WEICHAI WP12 Parts Kit Assembly. Gaskets take a compression set after use and will not reliably reseal. This includes cylinder head gaskets, oil pan gaskets, valve cover gaskets, intake and exhaust manifold gaskets, O-rings, and oil seals. The WEICHAI WP12 Parts Kit Assembly includes all necessary sealing components for a complete engine reseal.
  • Proper Torque Application: Follow the correct torque specifications and tightening sequences for all fasteners when installing components from the WEICHAI WP12 Parts Kit Assembly. Cylinder head bolts must be torqued in three stages (100 Nm, 240 Nm, +90° angle) in the specified sequence. Main bearing caps and connecting rod bolts require precise torque to maintain proper bearing clearance. Use a calibrated torque wrench for all critical fasteners.
  • Inspect Piston Ring Orientation: When installing piston assemblies from the WEICHAI WP12 Parts Kit Assembly, verify correct piston ring orientation. The compression rings must be installed with the marked side facing upward, and ring gaps must be staggered around the piston circumference (typically 120° apart for three rings). Incorrect ring orientation causes excessive oil consumption, blow-by, and power loss.
  • Verify Bearing Clearance: Before final assembly, use plastigauge to verify main bearing and connecting rod bearing clearance. The WEICHAI WP12 Parts Kit Assembly includes bearings manufactured to standard or undersize dimensions; select the correct bearing size based on crankshaft journal measurements. Improper bearing clearance leads to oil pressure loss, knocking, and bearing failure.
  • Perform Break-In Procedure: After installing the WEICHAI WP12 Parts Kit Assembly and completing the engine overhaul, follow a proper break-in procedure. Run the engine at varying speeds (not constant high speed) for the first 5,000 km, avoid full-throttle operation, and change the engine oil and filter after the first 500 km and again at 5,000 km. The break-in period allows piston rings to seat properly against the cylinder walls.
  • Monitor Oil Consumption: After overhaul using the WEICHAI WP12 Parts Kit Assembly, monitor engine oil consumption closely for the first 20,000 km. Some oil consumption (up to 0.5 liters per 1,000 km) is normal during break-in. Excessive consumption (over 1 liter per 1,000 km) indicates improper piston ring installation, incorrect cylinder liner finish, or other assembly issues requiring investigation.
  • Maintain Clean Engine Oil: The WEICHAI WP12 Parts Kit Assembly components are designed for use with high-quality diesel engine oil meeting API CI-4 or higher specifications. Change engine oil and filter at the recommended intervals (20,000 km or 500 operating hours) using the correct viscosity for your climate. Dirty or contaminated oil accelerates wear on new piston rings, bearings, and other components installed during the overhaul.

Beyond the checklist above, pay attention to any unusual engine noises or performance issues after overhaul. A knocking noise at idle that increases with engine speed may indicate improper bearing clearance or a loose connecting rod bolt. Blue smoke from the exhaust indicates oil consumption, often caused by incorrect piston ring installation or valve stem seal leakage. White smoke may indicate coolant leaking into the cylinders, typically from an improperly installed cylinder head gasket. Address any abnormal symptoms immediately to prevent catastrophic engine damage.

For engines operating in severe service (construction equipment, mining trucks, continuous high-load operation), consider performing a compression test and oil analysis after 10,000 km to verify the quality of the WEICHAI WP12 Parts Kit Assembly installation. For marine applications, inspect the engine for signs of coolant leakage more frequently, as the constant load operation places additional stress on cylinder head gaskets.

When ordering a WEICHAI WP12 Parts Kit Assembly, verify the specific kit configuration based on your engine model and overhaul requirements. The piston assembly kit (612600900075) is suitable for bottom-end rebuilds where the cylinder head is not being removed. The full gasket and seal repair kit (612600900279) is required for top-end overhauls or when the cylinder head is removed for valve work. For complete engine overhauls, order both kits to ensure all necessary components are available.

Finally, maintain a service log for the WEICHAI WP12 Parts Kit Assembly recording installation dates, component part numbers, torque values used, and any observed issues during break-in. This data helps verify the quality of the overhaul and provides documentation for warranty purposes. For fleet operators, standardized use of WEICHAI WP12 Parts Kit Assemblies for major overhauls ensures consistent component quality across all vehicles, simplifying parts inventory management and technician training.

Technical Summary: The WEICHAI WP12 Parts Kit Assembly is a comprehensive solution for maintaining and restoring WP12 diesel engines. By using OEM-grade components from a single, verified source, workshops can reduce downtime, lower maintenance costs, and ensure consistent overhaul quality. We stock complete parts kit assemblies and individual components for all WP12 variants, including truck, marine, construction, and generator applications.

In summary, the WEICHAI WP12 Parts Kit Assembly is an essential resource for any workshop or fleet operator performing major service on WP12 diesel engines. Its comprehensive component selection, OEM-grade materials, and precision engineering ensure that overhauled engines perform to factory specifications. Whether you are rebuilding a HOWO T7H tractor engine, overhauling a SHACMAN Delong F3000 dump truck, or servicing a WP12 marine propulsion engine, using a genuine parts kit assembly ensures that every component meets original equipment standards, providing the power, economy, and reliability that WP12 engines are known for.

For workshops performing major overhauls, we recommend ordering the WEICHAI WP12 Parts Kit Assembly together with new engine oil, oil filter, fuel filter, air filter, and coolant. The parts kit provides the internal components for rebuilding the engine; renewing the filters and fluids ensures that the freshly overhauled engine operates in a clean environment from the first start. We provide installation guides with torque specifications, component identification charts, and break-in procedures for all WP12 engine variants.

Our inventory includes both piston assembly kits (OEM 612600900075) for bottom-end work and full gasket and seal repair kits (OEM 612600900279) for complete engine resealing. For marine applications requiring enhanced corrosion resistance, we offer components with chrome-plated or heat-treated alloy construction. For generator applications where the engine runs at constant speed, we offer components optimized for steady-state operation with extended service intervals. Specify your application when ordering to receive the correct configuration.

We also provide after-sales documentation including material certificates, dimensional inspection reports, and component batch traceability upon request. Every WEICHAI WP12 Parts Kit Assembly is packaged in systematic, labeled compartments to prevent damage and simplify assembly during transit. Bulk orders receive custom export crating and documentation.


All specifications are based on original WEICHAI WP12 engine data. Actual product configurations may vary by sub-model (Euro III, Euro V, marine, construction, etc.). Always verify part numbers against your engine’s serial number plate before ordering.

Related Products

Online Catalog of WEICHAI Engine Parts

Learn More

If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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WEICHAI WP12 Engine Bracket Group https://deruna.com/weichai-wp12-engine-bracket-group.html https://deruna.com/weichai-wp12-engine-bracket-group.html#respond Tue, 21 Apr 2026 08:51:46 +0000 https://deruna.com/?p=113941 […]]]>

WEICHAI WP12 Engine Bracket Group

The WEICHAI WP12 Engine Bracket Group is a comprehensive set of
high-strength mounting brackets that secure the WP12 heavy-duty diesel engine to the
vehicle chassis or frame. As genuine

WEICHAI Engine Parts
, this bracket group ensures
precise engine positioning, effective vibration isolation, and optimal drivetrain
alignment across all WP12 variants from 336 HP to 550 HP.

WEICHAI WP12 Engine Bracket Group

WEICHAI WP12 Engine Bracket Group – Complete
engine mounting system including front and rear brackets for WP12 series engines.

What is the WEICHAI WP12 Engine Bracket Group?

The WEICHAI WP12 Engine Bracket Group is a complete engine
mounting solution that includes front and rear brackets, support brackets, and all
associated mounting hardware. The group serves as the primary structural interface
between the WP12 engine and the vehicle chassis, absorbing engine torque reaction
forces and isolating vibrations. Key OEM part numbers include 1001615063 (engine
bracket), 612630060021 (engine bracket for Euro III), 612630060441 (auxiliary
bracket), DZ95259591208 (left front bracket), DZ95259590075 (left front bracket),
DZ95259590197 (left front bracket for Shacman), and DZ95259590198 (right front
bracket for Shacman) [0†L5-L7][6†L2-L4][10†L2-L5][11†L2-L5][14†L5-L6][15†L4-L6].

The WEICHAI WP12 Engine Bracket Group is designed for the
WP12 inline 6-cylinder, four-stroke engine with 126 mm bore × 155 mm stroke and
11.596 L displacement. The WP12 engine produces maximum torque ranging from
1,300 to 2,110 N·m with a torque reserve of 25-35%, delivering exceptional low-speed
response and acceleration. The bracket group is engineered to withstand these forces
while maintaining precise alignment between the engine and transmission [7†L9-L14][8†L7-L9].

The WEICHAI WP12 Engine Bracket Group includes rear mounting
brackets such as YZ962554000154 (rear bracket assembly), DZ97259590115 (left rear
support bracket), and DZ97259590116 (right rear support bracket). These rear brackets
work together with the front brackets to distribute engine weight evenly and prevent
excessive engine movement during acceleration, braking, and cornering [8†L2-L5][16†L6-L7][17†L4-L5].

Applications for the WEICHAI WP12 Engine Bracket Group include
Shacman X3000/F3000/M3000, Sinotruk HOWO A7/T7H, Beiben trucks, JAC trucks,
CAMC vehicles, Yutong and Kinglong buses, SDLG wheel loaders, XCMG equipment,
marine WP12C engines (WP12C400-18, WP12C450-21, WP12C500-21, WP12C550-21), and
stationary generator sets. The bracket group is compatible with WP12 power outputs
from 336 HP to 550 HP across Euro III, Euro IV, Euro V, China VI, and marine
emission standards [2†L5-L7].

The WP12 engine platform has undergone over 45,000 hours of
cumulative bench testing and over 50 million kilometers of whole vehicle road
testing, proving the reliability of every engine mounting component. The bracket
group is designed to operate reliably in ambient temperatures from -35°C to 50°C
and at altitudes up to 4,100 meters with less than 5% power loss [7†L14-L15].

Product Parameters of WEICHAI WP12 Engine Bracket Group

NO. Part NO Description
1 1001615063 Engine Bracket (WP12, High-Strength Cast Iron) [10†L2-L5]
2 612630060021 Engine Bracket / Engine Support (WP12 Euro III, 270-480HP) [6†L2-L4]
3 612630060441 Engine Bracket (WP12, Auxiliary Mounting Support) [0†L5-L7]
4 DZ95259591208 Left Front Engine Bracket (Shacman Delong F3000, WP12) [11†L2-L5]
5 DZ95259590075 Left Front Engine Bracket (Shacman Delong, 4.1kg) [14†L5-L6]
6 DZ95259590197 Left Front Engine Bracket (Shacman X3000/F3000, WP12/13) [14†L5-L6]
7 DZ95259590198 Right Front Engine Bracket (Shacman X3000/F3000, WP12/13) [15†L4-L6]
8 YZ962554000154 Rear Bracket Assembly (WP12, Cast Steel) [8†L2-L5]
9 DZ97259590115 Left Rear Support Bracket (Shacman X3000/F3000, WP12) [16†L6-L7]
10 DZ97259590116 Right Rear Support Bracket (Shacman X3000/F3000, WP12) [17†L4-L5]

The table above lists common service parts for the WEICHAI WP12
Engine Bracket Group. For Shacman X3000/F3000 applications, the complete engine
mounting set includes left front bracket (DZ95259590197), right front bracket
(DZ95259590198), left rear bracket (DZ97259590115), and right rear bracket
(DZ97259590116) [14†L5-L6][16†L6-L7][17†L4-L5]. Always verify part numbers against
your vehicle model and engine variant before ordering.

Why Choose Our WEICHAI WP12 Engine Bracket Group?

High-Strength Cast Iron & Forged Steel Construction

Our WEICHAI WP12 Engine Bracket Group is manufactured from high-strength cast iron or heavy-gauge forged steel, providing exceptional rigidity and durability under continuous torque loads up to 2,110 N·m. The robust construction resists flexing and cracking, ensuring stable engine positioning throughout the service life [0†L5-L7].

Precision Engine Positioning & Alignment

The WEICHAI WP12 Engine Bracket Group ensures precise alignment between the engine and transmission, maintaining optimal drivetrain geometry. This precision reduces stress on drivetrain components, extends U-joint and bearing life, and prevents premature wear of engine mounts and vibration isolators [14†L5-L6].

Torque Absorption & Vibration Isolation

The WEICHAI WP12 Engine Bracket Group works with rubber vibration isolators to absorb engine torque reaction forces and isolate chassis vibration. The WP12 engine’s torque reserve of 25-35% produces significant reaction forces during acceleration; the bracket group effectively distributes these loads across the chassis, preventing drivetrain misalignment and reducing operator fatigue [7†L14-L15].

Direct Fitment for All WP12 Applications

No modifications required for WP12 engines in Shacman X3000/F3000/M3000, Sinotruk HOWO, Beiben, JAC, CAMC, Yutong, Kinglong, SDLG, XCMG, marine, and generator applications. Available for Euro III, Euro IV/V, China VI, and marine engine variants. Multiple bracket configurations available for different chassis types [14†L5-L6][16†L6-L7].

100% Quality Tested

Each WEICHAI WP12 Engine Bracket Group undergoes rigorous quality control including dimensional inspection, material hardness verification, crack detection (magnetic particle inspection), and load testing. IATF 16949 certified quality with full traceability. The WP12 engine platform has proven its reliability through over 45,000 hours of bench testing and 50 million kilometers of road testing [7†L14-L15].

Global Logistics & Technical Support

Worldwide shipping from regional warehouses. Free engine bracket installation torque charts, bolt tightening sequences, and troubleshooting guides provided with each order. Volume discounts available for fleet customers and engine rebuilders.

Why trust our WEICHAI WP12 Engine Bracket Group? Supplying over 500 workshops globally. The WP12 engine achieves a B10 life of 1,800,000 km, and every engine bracket component is designed and tested to meet this rigorous durability standard. The WP12 series engines are mature products originally derived from Austrian Steyr diesel engine technology, co-designed by Weichai European R&D Center and AVL Bosch [7†L14-L15].

Unlike aftermarket brackets that use inferior materials and
lack proper dimensional accuracy, our genuine WEICHAI WP12 Engine Bracket Group is
manufactured to original equipment specifications with documented quality control.
The brackets are precision-cast or forged from high-strength steel, with accurately
positioned mounting holes that ensure perfect alignment with engine block and chassis
mounting points. This precision eliminates the need for shimming or modification
during installation, saving valuable workshop time and ensuring proper drivetrain
geometry [0†L5-L7].

The WEICHAI WP12 Engine Bracket Group is designed to withstand
the extreme forces generated by the WP12 engine’s high-torque output. The engine
produces a maximum torque of up to 2,110 N·m at 1,000-1,400 RPM, with a torque reserve
of 25-35% that enables rapid acceleration and excellent grade-climbing ability. The
bracket group efficiently transfers these torque reaction forces to the chassis,
preventing engine movement that would otherwise cause drivetrain misalignment,
premature U-joint wear, and driveline vibration [7†L14-L15].

Technical support includes engine bracket installation
procedures: support the engine with a suitable lifting device, remove old brackets,
clean all mounting surfaces, install new brackets with new mounting bolts (do not
reuse old bolts), tighten bolts to specification in a symmetrical cross-tightening
sequence, and verify engine alignment with the transmission. Troubleshooting guides
for symptoms like excessive engine vibration (worn or loose brackets), drivetrain
clunking (broken bracket or failed rubber mount), and misaligned drivetrain (bent or
incorrectly installed brackets) are provided.

For fleets, sample testing is available. Order one WEICHAI
WP12 Engine Bracket Group for trial; volume pricing applies. Many customers report
over 500,000 km trouble-free engine mounting operation after replacing cracked or
worn original brackets with our genuine components. We provide cross-reference
support for part number verification—please provide your engine serial number and
vehicle model for accurate matching. We stock both complete bracket sets for
Shacman X3000/F3000 applications and individual brackets for partial repairs
[14†L5-L6][16†L6-L7][17†L4-L5].

What are the Routine Maintenance Considerations for the WEICHAI WP12 Engine Bracket Group?

  • Regular Visual Inspection for Cracks and Damage: During every scheduled maintenance (every 20,000 km or 500 operating hours), inspect the WEICHAI WP12 Engine Bracket Group for casting cracks, bending, or signs of fatigue. Pay special attention to the bracket mounting flanges, bolt holes, and the area around the rubber mount attachment points. Any crack detected requires immediate bracket replacement—cracked brackets can fail suddenly, causing the engine to shift and potentially damaging drivetrain components.
  • Check Bracket Bolt Torque: Every 50,000 km (30,000 miles) or 500 operating hours, use a calibrated torque wrench to verify that all WEICHAI WP12 Engine Bracket Group mounting bolts are tightened to specification. Loose bolts allow the engine to shift under torque, causing drivetrain misalignment, vibration, and accelerated wear of U-joints and bearings. If any bolt is found loose, replace it with a new bolt and retorque the entire set in the proper sequence.
  • Inspect Rubber Vibration Isolators: Every 50,000 km, inspect the rubber engine mounts (vibration isolators) that work with the WEICHAI WP12 Engine Bracket Group for cracking, swelling, or separation from the metal mounting plates. Worn rubber mounts allow excessive engine movement, causing drivetrain clunking, vibration, and potential damage to the engine brackets themselves. Replace rubber mounts at the first sign of deterioration [2†L8-L11].
  • Verify Engine-to-Transmission Alignment: Every 100,000 km (60,000 miles) or 1,000 operating hours, verify that the WEICHAI WP12 Engine Bracket Group is maintaining proper engine-to-transmission alignment. Measure the angle of the engine relative to the transmission input shaft using a digital inclinometer. Misalignment beyond factory specifications indicates bent brackets, worn rubber mounts, or incorrect installation, requiring immediate correction.
  • Listen for Drivetrain Clunking and Vibration: During daily operation, listen for clunking sounds when accelerating or decelerating. A clunk from the engine compartment indicates excessive engine movement, often caused by a broken bracket, loose bolts, or failed rubber mount. Excessive vibration felt through the steering wheel or seat may indicate a cracked bracket or failed vibration isolator. Address any abnormal symptoms immediately.
  • Replace Brackets as Matched Sets: When the WEICHAI WP12 Engine Bracket Group requires replacement, always replace both the left and right brackets as a matched set. Replacing only one side can create uneven engine mounting, causing drivetrain misalignment and premature wear of the new bracket. For Shacman applications, replace both front brackets (DZ95259590197, DZ95259590198) and both rear brackets (DZ97259590115, DZ97259590116) together [14†L5-L6][16†L6-L7][17†L4-L5].
  • Use Genuine Hardware and Torque Specifications: When installing the WEICHAI WP12 Engine Bracket Group, always use genuine Weichai-specified bolts and never reuse old bolts. Apply thread locker to all bolts as specified in the service manual. The bolts must be tightened gradually in a symmetrical cross-tightening sequence to prevent warping [2†L8-L11].
  • Complete Engine Mounting System Overhaul at 500,000 km: For high-mileage WP12 engines, perform a complete engine mounting system overhaul at 500,000 km (300,000 miles) or 10,000 operating hours. Replace the WEICHAI WP12 Engine Bracket Group (all front and rear brackets), all rubber vibration isolators, and all mounting bolts. Metal brackets can develop fatigue cracks over time due to continuous torque loading; preventive replacement eliminates the risk of sudden bracket failure, engine shifting, and drivetrain damage. The WP12 engine platform’s B10 life of 1,800,000 km is achievable only when all engine mounting components are properly maintained [7†L14-L15].

Also monitor the vehicle’s drivetrain for signs of misalignment.
If the vehicle experiences excessive driveline vibration, premature U-joint or carrier
bearing failure, or uneven tire wear, inspect the WEICHAI WP12 Engine Bracket Group
for bent brackets or failed rubber mounts. Engine sagging due to worn mounts can alter
driveline angles, causing accelerated wear and reducing component life.

For severe-duty applications (mining, construction, heavy haul,
marine), reduce engine mounting inspection intervals to every 25,000 km (15,000 miles)
or 250 operating hours. High torque loads, vibration, and off-road conditions accelerate
bracket fatigue and rubber mount degradation. Marine applications require additional
corrosion checks—saltwater environments can accelerate corrosion of steel brackets
and fasteners. Use corrosion-resistant coatings or stainless steel fasteners in
marine applications where available.

When installing a new WEICHAI WP12 Engine Bracket Group,
ensure that all mounting surfaces on the engine block and chassis are perfectly
clean and free of corrosion, debris, and old paint. Use a wire brush to clean bolt
holes and remove any thread locker residue. Align the brackets with the engine and
chassis mounting points before tightening bolts. Tighten all bolts gradually in a
symmetrical sequence to prevent warping. After installation, lower the engine onto
the mounts and verify that the rubber isolators are properly seated and not
preloaded or twisted [2†L8-L11].

Maintain a logbook of all engine mounting system maintenance:
dates of bracket inspections, bolt torque verification readings, rubber mount
condition assessments, drivetrain alignment measurements, and any abnormal findings.
For fleet operators, tracking drivetrain vibration levels and U-joint replacement
intervals is a powerful predictive maintenance tool—increasing vibration or more
frequent U-joint failures often indicate developing engine mounting issues, providing
ample warning before complete bracket failure occurs. Regular engine bracket
inspection and maintenance ensure the WP12 engine remains securely mounted,
drivetrain components stay properly aligned, and the vehicle continues to deliver
reliable, vibration-free operation throughout its service life.

Technical Summary: The WEICHAI WP12 Engine Bracket Group is a critical engine mounting component that directly affects drivetrain alignment, vibration isolation, torque reaction management, and overall vehicle reliability. Follow recommended maintenance: visual crack inspection every 20,000 km, bolt torque verification every 50,000 km, rubber mount inspection every 50,000 km, drivetrain alignment check every 100,000 km, and complete engine mounting system overhaul at 500,000 km. Expect up to 800,000 km trouble-free engine mounting operation with proper maintenance. The WP12 engine produces up to 2,110 N·m of torque with 25-35% torque reserve, and the bracket group is designed to withstand these forces throughout the engine’s service life [7†L14-L15].

In summary, the WEICHAI WP12 Engine Bracket Group features
high-strength cast iron or forged steel construction, precision engine positioning,
effective torque absorption and vibration isolation, and direct fitment for all
WP12 applications. Whether you are rebuilding a Shacman X3000, Sinotruk HOWO,
Beiben truck, Yutong bus, SDLG wheel loader, marine vessel, or generator set,
choosing a genuine engine bracket group directly impacts drivetrain reliability,
vibration comfort, component longevity, and overall vehicle safety.

For workshops performing in-frame overhauls, we recommend
ordering the WEICHAI WP12 Engine Bracket Group as a complete set including all
front and rear brackets, rubber vibration isolators, and new mounting bolts.
For Shacman X3000/F3000 applications, the complete set includes DZ95259590197
(left front bracket), DZ95259590198 (right front bracket), DZ97259590115
(left rear bracket), DZ97259590116 (right rear bracket), and all associated
rubber mounts and hardware [14†L5-L6][16†L6-L7][17†L4-L5]. This approach
eliminates hidden failures and gives your customer a worry-free warranty period.
All brackets are pre-inspected for dimensional accuracy, material integrity,
and load-bearing capacity before shipment.

Our inventory includes both standard engine bracket groups
for highway truck applications and heavy-duty variants for mining, construction,
and marine applications. The standard WEICHAI WP12 Engine Bracket Group provides
excellent service life for long-haul trucking, while heavy-duty variants feature
additional reinforcement and thicker material sections for severe-duty applications.
We provide cross-reference support for part number verification—please provide
your engine serial number and vehicle model for accurate matching. We stock
complete bracket sets for Shacman, Sinotruk, Beiben, and other WP12-powered
vehicles, as well as individual brackets and rubber mount kits for partial repairs
[0†L5-L7].

We provide after-sales documentation including bracket
dimensional inspection reports, material certificates (cast iron or forged steel
composition), bolt tightening sequences, and diagnostic trouble code (DTC) guides
for engine mounting-related vibration faults upon request. Every WEICHAI WP12
Engine Bracket Group component is packaged in protective foam-lined boxes to
prevent damage during shipping. Bulk orders receive custom palletizing and export
documentation assistance. Express shipping available for urgent repairs—most
orders dispatched within 24 hours.


All specifications based on original WEICHAI WP12 engine data. Cross-check part numbers with engine serial number and vehicle model. The WEICHAI WP12 Engine Bracket Group includes OEM references 1001615063, 612630060021, 612630060441, DZ95259591208, DZ95259590075, DZ95259590197, DZ95259590198, YZ962554000154, DZ97259590115, and DZ97259590116. For Shacman applications, replace brackets as matched sets, and inspect rubber mounts regularly for signs of deterioration [14†L5-L6][16†L6-L7][17†L4-L5].

Related Products

Online Catalog of WEICHAI Engine Parts

Learn More

If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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WEICHAI WP12 Oil Pan Assembly https://deruna.com/weichai-wp12-oil-pan-assembly.html https://deruna.com/weichai-wp12-oil-pan-assembly.html#respond Tue, 21 Apr 2026 08:13:59 +0000 https://deruna.com/?p=113939 […]]]>

WEICHAI WP12 Oil Pan Assembly

The WEICHAI WP12 Oil Pan Assembly (OE No. 612630010126) is a
precision-engineered stamped steel or cast aluminum component that serves as the
reservoir for engine lubricating oil in WP12 heavy-duty diesel engines. As genuine

WEICHAI Engine Parts
, this oil pan assembly
is manufactured to strict OEM standards for exceptional sealing and durability
across all WP12 variants from 336 HP to 550 HP. The WEICHAI WP12 Oil Pan Assembly
is engineered with a stamped steel structure, special marine flat oil pan design,
and overall stamping with ribs to enhance strength and prevent leakage.

WEICHAI WP12 Oil Pan Assembly

WEICHAI WP12 Oil Pan Assembly – Stamped steel
oil reservoir with reinforced structure for the WP12 diesel engine.

What is the WEICHAI WP12 Oil Pan Assembly?

The WEICHAI WP12 Oil Pan Assembly (OE No. 612630010126) is
a stamped steel reservoir mounted at the bottom of the engine block that collects,
stores, and cools engine lubricating oil. It serves as the sump for the WP12 engine’s
lubrication system, holding the oil supply that circulates through the engine to
lubricate moving parts, reduce friction, dissipate heat, and carry away contaminants
[0†L41-L43].

The WEICHAI WP12 Oil Pan Assembly features a robust stamped
steel construction with a one-piece overall stamping design that eliminates weld
lines on the surface. This manufacturing method, combined with strategically
arranged ribs, significantly improves the structural strength of the oil pan and
prevents leakage failure, enhancing overall reliability [2†L6-L9].

The WEICHAI WP12 Oil Pan Assembly incorporates a special flat
oil pan design for marine applications, demonstrating its adaptability to various
operational environments. The assembly includes the oil pan body, oil drain plug,
gasket sealing surface, and mounting bolt holes. The oil pan’s internal baffles
help control oil movement during vehicle acceleration, deceleration, and cornering,
ensuring consistent oil pickup by the oil pump strainer [2†L4-L9].

Applications for the WEICHAI WP12 Oil Pan Assembly include
Shacman Delong X3000, M3000, and F3000 series trucks, Sinotruk HOWO vehicles,
Beiben trucks, JAC trucks, CAMC vehicles, Yutong and Kinglong buses, SDLG wheel
loaders, XCMG equipment, marine WP12C engines, and stationary generator sets.
The oil pan is compatible with WP12 power outputs from 336 HP to 550 HP across
Euro III, Euro IV, Euro V, and China VI emission standards [6†L6-L8][0†L41-L43].

The WP12 engine platform has a displacement of 11.596 L,
bore of 126 mm, and stroke of 155 mm, with four valves per cylinder and a
turbocharged intercooled architecture. The oil pan assembly is an integral part
of the engine’s reliability, which has been proven through over 45,000 hours of
cumulative bench testing and over 50 million kilometers of whole vehicle road
testing [2†L10-L11].

Product Parameters of WEICHAI WP12 Oil Pan Assembly

NO. Part NO Description
1 612630010126 Oil Pan Assembly (WP12 Euro III, Stamped Steel) [7†L2-L4]
2 1009470896 Oil Pan Gasket (Multi-layer composite, -40°C to +200°C) [11†L11-L22]
3 612600010635 Oil Pan Gasket (WP12, sealing ring service part) [2†L12-L17]
4 614150004 Oil Pan Seal (WD615/WD618/WD12/WP10/WP12) [12†L6-L10]
5 612600010647 Oil Pan Bolt / Pipe Clamp (Mounting hardware) [3†L4-L5]
6 90011400039 Oil Drain Plug Screw (Magnetic, service replacement) [6†L15-L17]
7 612600010107 Oil Pump O-Ring / Seal Ring (WP12) [1†L4-L6]
8 612600010638 Oil Pan Rubber Pipe Clip (Hose mounting) [3†L24-L26]

The table above lists common service parts for the WEICHAI WP12
Oil Pan Assembly. The oil pan assembly (612630010126) is manufactured with a stamped
steel structure featuring overall stamping and strategically arranged ribs to
enhance strength and prevent leakage [2†L6-L9]. The oil pan gasket (1009470896)
features a multi-layer composite structure with operating temperature range of
-40°C to +200°C and has passed 1000-hour bench durability testing [11†L16-L22].

Why Choose Our WEICHAI WP12 Oil Pan Assembly?

One-Piece Stamped Steel Construction

Our WEICHAI WP12 Oil Pan Assembly is manufactured with an overall stamping design that eliminates weld lines on the surface, significantly reducing the risk of oil leakage. Strategically arranged ribs are incorporated into the design to improve structural strength, providing superior durability in the most demanding operating conditions [2†L6-L9].

Marine-Ready Flat Oil Pan Design

The WEICHAI WP12 Oil Pan Assembly features a special flat oil pan design specifically developed for marine applications, demonstrating its versatility across different operating environments. The robust construction ensures reliable performance in marine, off-highway, and heavy-duty truck applications [2†L4-L9].

Precision Sealing with Multi-Layer Gaskets

The WEICHAI WP12 Oil Pan Assembly is complemented by a multi-layer composite gasket (1009470896) that utilizes fiber-reinforced rubber + metal skeleton + special coating technology. The gasket operates in temperatures from -40°C to +200°C, maintains 98.5% sealing pressure stability, and withstands chemical erosion from various oil additives [11†L13-L22].

Direct Fitment for All WP12 Applications

No modifications required for WP12 engines in Shacman Delong X3000/M3000/F3000, Sinotruk HOWO, Beiben, JAC, CAMC, Yutong, Kinglong, SDLG, XCMG, marine, and generator applications. Available for Euro III, Euro IV/V, and China VI engine variants. The oil pan fits all WP12 power outputs from 336 HP to 550 HP [6†L6-L8].

100% Quality Tested

Each WEICHAI WP12 Oil Pan Assembly undergoes rigorous quality control including dimensional inspection, leakage testing, material verification, and structural integrity validation. IATF 16949 certified quality with full traceability. The WP12 engine platform has undergone over 45,000 hours of cumulative bench testing and over 50 million kilometers of road testing.

Global Logistics & Technical Support

Worldwide shipping from regional warehouses. Free oil pan installation torque charts, sealant application procedures, and troubleshooting guides provided with each order. Volume discounts available for fleet customers and engine rebuilders. The oil pan must be installed within 5 minutes after sealant application for optimal sealing [4†L25-L26].

Why trust our WEICHAI WP12 Oil Pan Assembly? Supplying over 500 workshops globally. The WP12 engine achieves a B10 life of 1,800,000 km, and every oil pan component is designed and tested to meet this rigorous durability standard. The WP12 series engines are mature products originally derived from Austrian Steyr diesel engine technology, co-designed by Weichai European R&D Center and AVL Bosch.

Unlike aftermarket oil pans that use inferior materials and
lack proper sealing surfaces, our genuine WEICHAI WP12 Oil Pan Assembly is
manufactured to original equipment specifications with documented quality control.
The overall stamping design eliminates weld lines, a common failure point on
lower-quality pans. The strategically arranged ribs increase structural rigidity,
preventing flexing and oil pan deformation under extreme operating conditions.
This design ensures consistent sealing performance throughout the service life
of the engine [2†L6-L9].

The WEICHAI WP12 Oil Pan Assembly is designed to work with
the WP12 engine’s advanced lubrication system. The oil pan’s internal geometry
ensures consistent oil supply to the oil pump strainer even during high-speed
cornering, steep inclines, or heavy braking. The special flat oil pan design for
marine applications demonstrates the engineering versatility of this component,
making it suitable for everything from long-haul trucks to marine propulsion
systems [2†L4-L9].

Technical support includes oil pan installation procedures:
drain engine oil, remove old oil pan, clean sealing surfaces thoroughly with
solvent and scraper, remove all old gasket material, apply silicone sealant
to the clean sealing surfaces (bead diameter approximately 3mm), install the
oil pan within 5 minutes of sealant application, torque bolts in a diagonal
sequence to 15 N·m, refill with recommended engine oil, and run engine to
check for leaks [4†L25-L26][6†L18-L21]. Troubleshooting guides for symptoms
like oil leaks (failed gasket or warped pan), low oil pressure (pan damage or
pickup tube obstruction), and oil contamination (debris in pan) are provided.

For fleets, sample testing is available. Order one WEICHAI
WP12 Oil Pan Assembly for trial; volume pricing applies. Many customers report
over 500,000 km trouble-free oil pan operation after replacing corroded or
damaged original pans with our genuine components. We provide cross-reference
support for part number verification—please provide your engine serial number
for accurate matching. We stock both standard oil pans for highway applications
and marine variants with special flat pan design.

What are the Routine Maintenance Considerations for the WEICHAI WP12 Oil Pan Assembly?

  • Regular Visual Inspection for Oil Leaks: During every scheduled maintenance (every 20,000 km or 500 operating hours), inspect the WEICHAI WP12 Oil Pan Assembly for oil seepage around the mounting flange, drain plug, and any weld seams. Look for oil stains on the ground under the vehicle. Any leak must be investigated immediately—a leaking oil pan can lead to low oil levels and catastrophic engine damage.
  • Inspect Oil Pan for Physical Damage: Every 50,000 km (30,000 miles) or 500 operating hours, visually inspect the WEICHAI WP12 Oil Pan Assembly for dents, cracks, or corrosion. The oil pan is vulnerable to impact from road debris, rocks, and curbs. Even a small dent can reduce oil capacity or cause the oil pickup tube to contact the pan, restricting oil flow. If damage is found, replace the oil pan immediately.
  • Check Drain Plug Torque and Condition: Every oil change, inspect the oil drain plug (90011400039) for thread damage and replace the sealing washer. Torque the drain plug to 30 N·m. Overtightening can strip the threads in the oil pan; undertightening causes leaks. A magnetic drain plug is recommended to capture metal particles and provide early warning of internal engine wear [6†L15-L17].
  • Replace Oil Pan Gasket When Pan is Removed: Whenever the WEICHAI WP12 Oil Pan Assembly is removed for any reason, always install a new oil pan gasket (1009470896 or 612600010635). Never reuse an old gasket—once compressed, it will not provide a proper seal. The multi-layer composite gasket is designed for single use only and offers superior sealing performance over silicone sealant alone [11†L13-L22].
  • Inspect Oil Pan Bolts for Proper Torque: Every 100,000 km (60,000 miles) or 1,000 operating hours, use a calibrated torque wrench to verify that all WEICHAI WP12 Oil Pan Assembly mounting bolts are tightened to 15 N·m in a diagonal sequence [4†L25-L26]. Loose bolts allow the oil pan to move under vibration, causing gasket failure and oil leaks. If any bolt is found loose, retorque the entire set in the proper sequence.
  • Clean Oil Pan During Engine Overhaul: When performing a major engine overhaul, remove the WEICHAI WP12 Oil Pan Assembly and thoroughly clean the interior to remove sludge, carbon deposits, and debris. Use a parts washer and a soft brush—avoid abrasive tools that could scratch the metal surface. Inspect the oil pickup tube and strainer for blockage. A clean oil pan ensures proper oil flow and prevents contamination of new engine components.
  • Use Correct Sealant Application Procedure: When installing the WEICHAI WP12 Oil Pan Assembly with silicone sealant (instead of a gasket), apply a 3mm bead of sealant to the clean sealing surface. The oil pan must be installed and tightened within 5 minutes of sealant application. Do not over-apply sealant—excess sealant can break off and clog the oil pickup strainer, causing oil starvation [4†L25-L26].
  • Complete Lubrication System Overhaul at 500,000 km: For high-mileage WP12 engines, perform a complete lubrication system overhaul at 500,000 km (300,000 miles) or 10,000 operating hours. Replace the WEICHAI WP12 Oil Pan Assembly (612630010126), oil pan gasket (1009470896), oil pump, oil pickup tube, and oil pressure switch. Over time, the oil pan can develop microscopic cracks, corrosion, or warpage; preventive replacement eliminates the risk of sudden oil loss and catastrophic engine failure. The WP12 engine platform’s B10 life of 1,800,000 km is achievable only when all lubrication system components are properly maintained.

Also monitor the engine’s oil pressure gauge and warning light.
If the oil pressure drops below normal operating range (350-500 kPa at operating RPM),
check the WEICHAI WP12 Oil Pan Assembly for damage that may be restricting the
oil pickup tube. A dented oil pan can push the pickup tube against the pan bottom,
severely restricting oil flow. If the oil warning light illuminates, stop the engine
immediately—continued operation can cause catastrophic bearing failure.

For severe-duty applications (mining, construction, heavy haul,
marine), reduce oil pan inspection intervals to every 25,000 km (15,000 miles)
or 250 operating hours. High ambient temperatures, vibration, and road debris
accelerate oil pan damage and gasket degradation. Marine applications require
additional corrosion checks—saltwater environments can accelerate corrosion of
the stamped steel oil pan. Consider upgrading to a corrosion-resistant coated
oil pan for marine applications.

When installing a new WEICHAI WP12 Oil Pan Assembly, ensure
that all mounting surfaces on the engine block are perfectly clean and free of
old gasket material, corrosion, and debris. Use a plastic scraper (not metal)
to avoid scratching the sealing surface. Align the oil pan with the locating
dowel pins before tightening bolts. Tighten all bolts gradually in a diagonal
sequence to 15 N·m. After installation, fill with the recommended engine oil
(API CK-4 or CJ-4, 15W-40 for most applications), run the engine, and inspect
for leaks.

Maintain a logbook of all lubrication system maintenance:
dates of oil pan inspections, gasket replacement intervals, bolt torque
verification readings, oil analysis results, and any abnormal findings. For
fleet operators, tracking oil consumption trends is a powerful predictive
maintenance tool—a gradual increase in oil consumption often indicates a
developing oil pan leak or other lubrication system issue, providing ample
warning before complete failure occurs. Regular oil pan inspection and
maintenance ensure the WP12 engine continues to deliver reliable, leak-free
operation throughout its service life.

Technical Summary: The WEICHAI WP12 Oil Pan Assembly is a critical lubrication system component that directly affects oil capacity, engine cooling, and leak prevention. Follow recommended maintenance: visual leak inspection every 20,000 km, physical damage check every 50,000 km, drain plug torque verification at every oil change, replace gasket when pan is removed, bolt torque verification every 100,000 km, and complete lubrication system overhaul at 500,000 km. Expect up to 800,000 km trouble-free oil pan operation with proper maintenance. The WP12 engine displacement is 11.596 L with 126 mm bore × 155 mm stroke [2†L10-L11].

In summary, the WEICHAI WP12 Oil Pan Assembly features
one-piece stamped steel construction with overall stamping and rib reinforcement,
special flat oil pan design for marine applications, multi-layer composite gasket
technology (-40°C to +200°C operating range), and direct fitment for all WP12
applications. Whether you are rebuilding a Shacman X3000, Sinotruk HOWO, Beiben
truck, Yutong bus, SDLG wheel loader, marine vessel, or generator set, choosing
a genuine oil pan assembly directly impacts engine lubrication reliability,
oil leak prevention, and overall engine durability.

For workshops performing in-frame overhauls, we recommend
ordering the WEICHAI WP12 Oil Pan Assembly as a complete kit including the
oil pan (612630010126), oil pan gasket (1009470896), oil drain plug (90011400039),
and oil pan bolt set (612600010647). This approach eliminates hidden failures
and gives your customer a worry-free warranty period. All oil pans are
pre-inspected for structural integrity, sealing surface flatness, and dimensional
accuracy before shipment. The multi-layer composite gasket has passed 1000-hour
bench durability testing with 98.5% sealing pressure stability [11†L16-L17].

Our inventory includes both standard stamped steel oil pans
for highway truck applications and marine variants with special flat pan design
for saltwater environments. The standard WEICHAI WP12 Oil Pan Assembly provides
excellent service life for long-haul trucking, while marine variants feature
additional corrosion-resistant coatings for saltwater resistance. We provide
cross-reference support for part number verification—please provide your engine
serial number for accurate matching. We stock complete oil pan assemblies,
individual gaskets, drain plugs, bolt sets, and sealing hardware.

We provide after-sales documentation including oil pan
dimensional inspection reports, material certificates (stamped steel composition),
gasket performance test certifications, installation torque specifications
(15 N·m for pan bolts, 30 N·m for drain plug), and diagnostic trouble code
(DTC) guides for lubrication system-related faults upon request. Every WEICHAI
WP12 Oil Pan Assembly component is packaged in protective foam-lined boxes
to prevent damage during shipping. Bulk orders receive custom palletizing
and export documentation assistance. Express shipping available for urgent
repairs—most orders dispatched within 24 hours.


All specifications based on original WEICHAI WP12 engine data. Cross-check part numbers with engine serial number and vehicle application. The WEICHAI WP12 Oil Pan Assembly includes OEM references 612630010126 (stamped steel oil pan), 1009470896 (multi-layer composite gasket, -40°C to +200°C), 612600010635 (gasket), 614150004 (oil pan seal), 612600010647 (bolt set), and 90011400039 (drain plug). Always torque oil pan bolts to 15 N·m in a diagonal sequence, use new gasket at every service, torque drain plug to 30 N·m, and install oil pan within 5 minutes of sealant application if using silicone sealant [4†L25-L26][2†L6-L9][11†L13-L22].

Related Products

Online Catalog of WEICHAI Engine Parts

Learn More

If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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WEICHAI WP12 Oil Pan Group https://deruna.com/weichai-wp12-oil-pan-group.html https://deruna.com/weichai-wp12-oil-pan-group.html#respond Tue, 21 Apr 2026 08:08:07 +0000 https://deruna.com/?p=113940 […]]]>

WEICHAI WP12 Oil Pan Group

The WEICHAI WP12 Oil Pan Group is a premium-grade oil reservoir and sealing assembly engineered specifically for the WP12 diesel engine platform. This complete group securely stores engine oil at the bottom of the crankcase while ensuring proper lubrication circulation, heat dissipation, and contaminant exclusion. Proper oil pan function is essential for engine longevity and performance, and the WEICHAI WP12 Oil Pan Group provides fleet operators and technicians with an OEM-grade solution for maintaining reliable oil containment under all operating conditions. For genuine replacement parts and comprehensive engine service components, always source from verified WEICHAI Engine Parts to guarantee OEM fitment, consistent quality, and long-term reliability.

WEICHAI WP12 Oil Pan Group

WEICHAI WP12 Oil Pan Group – Complete oil reservoir and sealing assembly for WP12 diesel engines.

What is the WEICHAI WP12 Oil Pan Group?

The WEICHAI WP12 Oil Pan Group is a complete oil reservoir and sealing assembly mounted at the bottom of the engine crankcase, responsible for storing engine oil that lubricates and cools internal moving parts. This assembly consists of the oil pan housing (stamped steel or cast aluminum), the oil pan gasket (rubber or composite sealing ring), the oil drain plug with sealing washer, and all necessary mounting hardware. As the foundation of the WP12 engine’s lubrication system, the oil pan ensures that clean, properly cooled oil is available for circulation to the oil pump, bearings, camshaft, and turbocharger at all times.

The oil pan housing is manufactured from high-strength stamped steel with a corrosion-resistant coating or die-cast aluminum alloy, offering excellent impact resistance and thermal stability. For the WP12 engine, the WEICHAI WP12 Oil Pan Group features internal baffles or stabilizer plates that minimize oil sloshing during vehicle acceleration, braking, and cornering, ensuring that the oil pickup tube remains submerged even on inclined surfaces up to 35°. The pan includes a deep sump design that provides approximately 28-32 liters of oil capacity (depending on configuration), sufficient for extended service intervals and demanding operating conditions.

The WEICHAI WP12 Oil Pan Group is designed for the 11.596-liter inline-six WP12 engine used in heavy trucks (HOWO T7H, SHACMAN Delong F3000, FOTON Auman, Jiefang), construction machinery (loaders, excavators, bulldozers), marine propulsion, and stationary generator sets. The assembly is compatible with all WP12 variants from Euro III through Euro V emission standards, as well as China VI engines. The oil pan is secured to the cylinder block using 16-20 fastening bolts with a multi-layer steel (MLS) or rubber-coated gasket ensuring an oil-tight seal. The gasket is manufactured from high-quality synthetic rubber (EPDM) that withstands temperatures ranging from -40°C to +150°C.

In addition to the basic oil pan housing and gasket, the complete WEICHAI WP12 Oil Pan Group includes the magnetic drain plug with integrated sealing washer, which captures ferrous metal particles from engine wear before they can recirculate through the lubrication system. Some variants also include an oil level sensor port for electronic oil level monitoring (typically located on the side of the pan), dipstick tube mounting boss, and oil cooler return line fittings. Replacement oil pan groups are available as complete assemblies or as individual components, allowing workshops to replace only damaged sections rather than the entire system.

For marine applications, the WEICHAI WP12 Oil Pan Group is supplied with a flat oil pan design featuring overall stamping construction with no weld lines on the surface, formed in one operation to prevent leakage failure and improve reliability. For construction machinery operating in high-vibration environments, the oil pan features reinforced mounting flanges and additional internal support ribs to resist fatigue cracking. For cold-region vehicles, the oil pan may be equipped with a heater pad mounting surface or coolant heating jacket to reduce oil viscosity at startup for easier cold cranking.

Every genuine WEICHAI WP12 Oil Pan Group undergoes 100% dimensional inspection and leak testing. Counterfeit oil pans often use thinner-gauge steel with inconsistent material thickness or inferior gaskets that harden and leak prematurely. Some counterfeit pans lack internal baffles or have incorrect drain plug threads, leading to stripping and oil leaks. Always source from authorized distributors to guarantee proper material composition, precise fitment, and leak-free operation.

Product Parameters of WEICHAI WP12 Oil Pan Group

NO. Part NO Description
1 612630010471 Oil Pan Assembly (Complete, WP12 Standard)
2 612630010126 Oil Pan Assembly (WP12 Euro III, Truck Application)
3 612600150347 Oil Pan Assembly (WP12/WP13, Heavy-Duty Truck)
4 612600150382 Oil Pan Assembly (HOWO Weichai, Pressed Steel)
5 612630010065 Oil Pan Gasket (Rubber/EPDM, WP12)
6 614150004 Oil Pan Gasket (Multi-Loop Rubber Seal, WP12/WD615)
7 612600150106 Gasket / Sealing Washer (Drain Plug Accessory)
8 612630010419 Retainer of Oil Pan / Support Block
9 612630010420 Retainer of Oil Pan / Mounting Bracket
10 1411821-00007-001 / 90011400039 Oil Pan Fixing Screw / Hex Flange Bolt
11 VG14150004 Oil Pan Drain Plug (Magnetic, with Sealing Washer)
12 612600150390 Retainer of Oil Pan (WP10/WP12 Cross-Compatible)
13 1014400908 Oil Pan Gasket (Aftermarket Compatible)
14 612630110002 Gasket (Engine Accessory, WP12)
15 612600081630 Pipe Clamp Assembly (For Oil Pan Mounting Accessories)
Technical Specifications: Oil capacity: 28-32 liters (standard), up to 42 liters (deep sump) | Material: Pressed steel or die-cast aluminum with corrosion-resistant coating | Gasket material: EPDM synthetic rubber, -40°C to +150°C | Drain plug torque: 33-45 Nm (24-33 ft-lbs) | Pan mounting bolts torque: 10-15 Nm (7-11 ft-lbs) | Internal baffles: Yes (stabilizer plates) | Magnetic drain plug: Yes (captures ferrous particles) | Operating angle: Up to 35° inclination (oil pickup remains submerged).

Why Choose Our WEICHAI WP12 Oil Pan Group?

Premium Material Construction

Our WEICHAI WP12 Oil Pan Group uses high-grade pressed steel with a corrosion-resistant coating or die-cast aluminum alloy, providing 30% greater impact resistance than standard pans and exceptional durability in harsh operating environments. The one-time stamping construction eliminates weld lines that could become leak paths, ensuring reliable oil containment for the life of the engine.

Optimized Oil Control

The oil pan features internal baffles or stabilizer plates that minimize oil sloshing during acceleration, braking, and cornering. This ensures that the oil pickup tube remains submerged even on steep inclines up to 35°, preventing oil starvation under demanding driving conditions. The deep sump design provides sufficient oil capacity for extended service intervals (20,000-50,000 km depending on application).

Leak-Proof Sealing System

Our WEICHAI WP12 Oil Pan Group includes a high-quality EPDM synthetic rubber gasket that withstands temperatures from -40°C to +150°C and pressures up to 150 PSI. The multi-loop design conforms seamlessly to irregular engine block surfaces, creating a leak-proof seal that outperforms flat gaskets by approximately 30% in durability tests.

Direct Fitment with WP12 Engines

Our oil pans are manufactured using original WP12 engine drawings, ensuring bolt holes align perfectly with the cylinder block and the gasket sealing surface matches factory specifications. No modifications required for installation on HOWO T7H, SHACMAN Delong F3000, FOTON Auman, Jiefang, and other WP12-powered vehicles. The assembly is compatible with all WP12 variants from Euro III through China VI emission standards.

Complete Hardware Included

Each WEICHAI WP12 Oil Pan Group includes the magnetic drain plug with sealing washer, all necessary mounting bolts, and the oil pan gasket. No need to source separate hardware or risk using incorrect sealing components that could cause oil leaks and engine damage. The magnetic drain plug captures ferrous metal particles, protecting the oil pump and bearings.

Global Availability

We stock complete oil pan groups and individual components in warehouses across Asia, Europe, and the Americas. Express shipping options minimize downtime for fleet operators. Technical documentation includes torque specifications, gasket installation procedures, and diagnostic guides for oil leak detection.

Why trust our WEICHAI WP12 Oil Pan Group? We have supplied over 5,000 oil pan assemblies to workshops worldwide. Our components carry a defect rate below 0.2%, thanks to 100% dimensional inspection and leak testing.

Unlike generic aftermarket oil pans that use thin-gauge steel prone to denting and corrosion, our WEICHAI WP12 Oil Pan Group is manufactured to original equipment specifications. The pressed steel construction features a minimum thickness of 2.0 mm, with reinforced ribs stamped into the pan floor to resist flexing under oil surge loads. The corrosion-resistant e-coating or zinc-phosphate finish protects against rust from road salt, moisture, and chemical exposure, ensuring a service life exceeding 500,000 km.

Furthermore, our oil pan gaskets are manufactured from high-quality EPDM synthetic rubber with a multi-loop sealing profile. Unlike conventional flat gaskets that require high clamping force to seal, the multi-loop design conforms to irregular engine block surfaces, creating a leak-proof seal with lower bolt torque. The gasket withstands exposure to engine oil, coolant, and combustion byproducts without hardening or cracking, maintaining sealing integrity through thermal cycles. The gasket is approximately 30% more durable than standard rubber seals, with a temperature rating of -40°C to +150°C and pressure rating of 150 PSI.

Technical documentation included with the WEICHAI WP12 Oil Pan Group provides correct bolt torque specifications (oil pan bolts: 10-15 Nm, oil drain plug: 33-45 Nm), gasket installation procedures (clean dry surfaces, no additional sealant required), and a troubleshooting guide for common issues such as oil leaks (replace gasket or check drain plug torque) and oil pressure drop (verify pan is not dented, restricting oil pickup clearance).

For large fleet customers, we offer sample evaluation: order one WEICHAI WP12 Oil Pan Group for trial installation. After validation, volume pricing applies. Many return customers report that our oil pan groups exceed the original equipment service life, with over 600,000 km of leak-free operation, compared to low-cost alternatives that often develop leaks or rust-through within 150,000 km.

What are the Routine Maintenance Considerations for the WEICHAI WP12 Oil Pan Group?

  • Visual Inspection for Leaks and Damage: Inspect the oil pan for oil seepage, dents, cracks, or corrosion every 50,000 km or during every oil change. Pay special attention to the pan-to-block sealing surface, drain plug area, and any welded joints. Even a small oil film indicates a failing gasket or loose bolts. Dents deeper than 5 mm can restrict oil pickup tube clearance and should be repaired or replaced immediately. Corrosion that has penetrated through the steel requires replacement of the WEICHAI WP12 Oil Pan Group.
  • Replace Gasket at Every Pan Removal: Whenever the oil pan is removed for engine service (e.g., oil pump replacement, crankshaft seal repair, or internal inspection), always replace the oil pan gasket with a new one. Rubber/EPDM gaskets take a compression set and will not reliably reseal. Reusing an old gasket is the most common cause of post-service oil leaks. Clean both sealing surfaces thoroughly with a plastic scraper and solvent before installing the new gasket.
  • Inspect Drain Plug and Sealing Washer: Examine the magnetic drain plug for metal particles at every oil change (20,000 km or 500 operating hours). An excessive accumulation of metal particles indicates internal engine wear requiring further investigation. Replace the copper or aluminum sealing washer at every oil change — these washers work-harden after compression and will not reliably reseal. Torque the drain plug to 33-45 Nm. Over-tightening strips the threads in the aluminum oil pan; under-tightening causes immediate leaks.
  • Check Pan Bolt Torque: Re-torque oil pan mounting bolts every 100,000 km or whenever the pan is removed. Use a calibrated torque wrench with the values specified (10-15 Nm for M8 bolts). Tighten in a crisscross pattern from the center outward in two stages: first to 5 Nm, then final torque to 10-15 Nm. Loose bolts allow the gasket to shift and cause oil leaks. Replace any bolts with damaged threads or corrosion.
  • Monitor Oil Level Regularly: Check the engine oil level using the dipstick every 500 km or daily before the first start. The WEICHAI WP12 Oil Pan Group is designed to hold 28-32 liters of oil; the oil level must be between the low and high marks on the dipstick. Low oil levels can cause oil starvation, bearing damage, and engine seizure. Overfilling (above the high mark) can cause oil foaming and aeration, leading to oil pressure loss and engine damage.
  • Inspect Internal Baffles (If Pan Removed): If the oil pan is removed for any reason, inspect the internal baffles or stabilizer plates for loose mounting or damage. Loose baffles can rattle and potentially break off, causing debris to circulate in the oil system. A missing baffle allows excessive oil sloshing, which can cause the oil pickup to suck air during cornering or braking, leading to oil pressure drop. Replace the WEICHAI WP12 Oil Pan Group if the baffles are damaged.
  • Check for Oil Dilution: If the engine oil smells of diesel fuel or appears thinner than normal on the dipstick, fuel may be leaking past the piston rings or injectors and diluting the oil. Diluted oil has lower viscosity and can leak past the oil pan gasket more easily. Investigate the source of fuel dilution immediately and change the oil and filter. Prolonged oil dilution can damage engine bearings and cause catastrophic failure.
  • Clean Pan Exterior and Inspect for Rust: During routine maintenance, clean the exterior of the WEICHAI WP12 Oil Pan Group with a degreaser and inspect for rust or paint damage. Surface rust can be cleaned and repainted with high-temperature engine paint. Deep rust pitting (more than 1 mm deep) weakens the pan and may lead to perforation and oil loss. For marine applications, apply additional anti-corrosion coating annually to protect against saltwater exposure.

Beyond the checklist above, pay attention to any change in oil pressure readings on the dashboard gauge. A sudden drop in oil pressure at idle or under load may indicate a cracked oil pan, damaged gasket, or a loose drain plug causing rapid oil loss. If oil pressure warning light illuminates or gauge reading falls below 200 kPa at idle, stop the engine immediately and investigate. Running an engine with low oil pressure will cause catastrophic bearing damage within minutes.

For engines operating in severe service (construction equipment, mining trucks, off-highway applications), consider more frequent oil pan inspections every 25,000 km. Rocks and debris can impact the pan, causing dents or punctures. For mining applications, consider installing a heavy-duty skid plate or rock guard to protect the oil pan from impact damage. For marine applications, inspect the oil pan annually for saltwater corrosion, paying special attention to the drain plug area and weld seams.

When replacing a damaged oil pan, always install a new gasket and new drain plug sealing washer. Inspect the cylinder block sealing surface for damage or debris before installation. Clean both surfaces with a lint-free cloth and solvent. Apply no additional sealant unless specified — the rubber gasket is designed to seal dry. Install the pan with the bolts hand-tight, then torque in sequence to 10-15 Nm. After filling with oil, run the engine for 5 minutes, then inspect for leaks. Re-torque bolts if seepage is observed (no more than an additional 3 Nm).

Finally, maintain a service log for the WEICHAI WP12 Oil Pan Group recording installation dates, bolt torque values, gasket replacement intervals, and any observed damage or leaks. This data helps predict when components are approaching end of life. For fleet operators, standardized replacement of oil pan gaskets every 200,000 km and complete oil pan assembly inspection every 100,000 km eliminates oil leak-related breakdowns and protects engines from oil starvation.

Technical Summary: The WEICHAI WP12 Oil Pan Group is a critical component that stores and protects the engine’s lubricating oil, ensuring reliable operation under all conditions. Proper oil pan condition, gasket integrity, and drain plug sealing are essential for maintaining oil pressure and preventing leaks. We stock complete oil pan groups and individual components for all WP12 variants, including truck, marine, construction, and generator applications.

In summary, the WEICHAI WP12 Oil Pan Group is an essential component for the WP12 engine’s lubrication system. Its robust stamped steel construction, precision-molded rubber gasket, and magnetic drain plug ensure that engine oil remains clean, contained, and available for circulation. Whether you are replacing a corroded oil pan on a HOWO T7H tractor, maintaining a fleet of SHACMAN Delong F3000 dump trucks, or servicing a WP12 marine propulsion engine, using a genuine oil pan group ensures that the engine’s oil reservoir functions as designed, providing the lubrication necessary for long, reliable service.

For workshops performing engine overhauls or oil pump replacement, we recommend ordering the WEICHAI WP12 Oil Pan Group together with a new oil pump pickup tube, oil pump gasket, and engine oil. The oil pan must be removed to access the oil pump; renewing the pan gasket and inspecting the pan for damage ensures that the rebuilt engine’s lubrication system is as reliable as new. We provide installation guides with torque specifications, gasket handling instructions, and oil leak diagnostic procedures for all WP12 engine variants.

Our inventory includes both standard oil pans for on-highway trucks and heavy-duty versions with reinforced construction for off-highway applications. For generator sets where the engine runs at constant speed, we offer oil pans with additional internal baffling to maintain oil pickup submergence during extended operation. For marine applications, we supply pans with enhanced corrosion-resistant coatings. Specify your application when ordering to receive the correct configuration.

We also provide after-sales documentation including material certificates, dimensional inspection reports, and leak test results upon request. Every WEICHAI WP12 Oil Pan Group is packaged in a foam-lined box with separate compartments for the pan and gasket to prevent damage during transit. Bulk orders receive custom export crating and documentation.


All specifications are based on original WEICHAI WP12 engine data. Actual product configurations may vary by sub-model (Euro III, Euro V, marine, construction, etc.). Always verify part numbers against your engine’s serial number plate before ordering.

Related Products

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If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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WEICHAI WP12 Air Compressor Group https://deruna.com/weichai-wp12-air-compressor-group.html https://deruna.com/weichai-wp12-air-compressor-group.html#respond Tue, 21 Apr 2026 08:06:10 +0000 https://deruna.com/?p=113938 […]]]>

WEICHAI WP12 Air Compressor Group

The WEICHAI WP12 Air Compressor Group (OE No. 612630030047 /
61800130043) is a high-performance twin-cylinder water-cooled compressor assembly
that provides compressed air for braking systems and pneumatic accessories on
WP12 heavy-duty diesel engines. As genuine

WEICHAI Engine Parts
, this air compressor
group is designed for exceptional reliability across all WP12 variants from
336 HP to 550 HP. The WEICHAI WP12 Air Compressor Group features a robust
water-cooled design, 2 cylinders with φ86 mm bore and 40 mm stroke,
464.7 ml displacement, and maximum working pressure of 0.8 MPa.

WEICHAI WP12 Air Compressor Group

WEICHAI WP12 Air Compressor Group – Twin-cylinder
water-cooled compressor assembly (OE 612630030047) for WP12 diesel engines.

What is the WEICHAI WP12 Air Compressor Group?

The WEICHAI WP12 Air Compressor Group is a twin-cylinder
water-cooled compressor that supplies compressed air for the vehicle’s brake
system and pneumatic accessories. Located at the front of the engine and driven
by the gear train, the compressor uses two cylinders with φ86 mm bore and 40 mm
stroke, producing a displacement of 464.7 ml.

The WEICHAI WP12 Air Compressor Group features a water-cooled
cylinder liner design that reduces cylinder wall temperature, decreases oil carryover,
and significantly lowers failure rates. The cooling system ensures reliable
operation under continuous heavy-duty conditions, making it suitable for trucks,
buses, construction equipment, and marine applications.

The WEICHAI WP12 Air Compressor Group operates at a rated
speed of 3,000 r/min, delivering a displacement of at least 720 L/min at 0.8 MPa
working pressure. The compressor has a maximum shaft power consumption of 7.8 kW
and uses an intake unloading method. The gear drive system ensures precise
synchronization with the engine crankshaft.

Applications for the WEICHAI WP12 Air Compressor Group
include Shacman X3000/F3000/X5000, Sinotruk HOWO A7/T7H, Beiben trucks, JAC trucks,
CAMC vehicles, Yutong and Kinglong buses, SDLG wheel loaders, XCMG equipment,
marine WP12C engines, and stationary generator sets. The compressor is compatible
with WP12 power outputs from 336 HP to 550 HP across all emission standards.

The WEICHAI WP12 Air Compressor Group (OE No. 612630030047)
is a direct replacement for original equipment and is manufactured to OEM
specifications. The complete repair kit (612630030047) includes all necessary
seals, gaskets, and components for overhaul. The compressor’s water-cooled design
ensures stable thermal management even during prolonged high-load operation.

Product Parameters of WEICHAI WP12 Air Compressor Group

NO. Part NO Description
1 612630030047 Twin-Cylinder Air Compressor Assembly (Water-Cooled, 2×φ86×40, 464.7ml, 0.8 MPa) [6†L2-L4]
2 61800130043 Air Compressor Assembly (Weichai WD615/WP10/WP12, Heavy-Duty) [2†L14-L17]
3 612630030047 (Repair Kit) Twin-Cylinder Air Compressor Repair Kit / Overhaul Kit (WP12 Series) [2†L8-L10]
4 612600130276 Weichai Air Compressor (WP12, Twin-Cylinder Air Pump) [11†L5-L6]
5 612630030324 Twin-Cylinder Air Compressor (2×φ86×40, 1.0 MPa, ≥680 L/min) [7†L19-L20]
6 612630030336 Water-Cooled Air Compressor Assembly (WP12 Marine Diesel Engine) [8†L17-L18]
7 1001768039 Air Compressor Assembly (WP12 Series, OE Equivalent) [2†L1-L4]

The table above lists common service parts for the WEICHAI WP12
Air Compressor Group. The complete air compressor assembly (612630030047) has
a displacement of 464.7 ml, working pressure of 0.8 MPa, rated speed of 3,000 r/min,
displacement of ≥720 L/min, and shaft power ≤7.8 kW [6†L2-L4]. The water-cooled
cylinder liner design reduces cylinder wall temperature, decreases oil carryover,
and effectively lowers failure rates, improving component reliability [4†L17-L20].

Why Choose Our WEICHAI WP12 Air Compressor Group?

Water-Cooled Design for Superior Reliability

Our WEICHAI WP12 Air Compressor Group features a water-cooled cylinder liner that reduces cylinder wall temperature, decreases the amount of oil discharged with the air, and effectively reduces the failure rate of the air compressor. This design significantly improves component reliability, especially under continuous heavy-duty operation [4†L17-L20].

High-Capacity Air Output

The WEICHAI WP12 Air Compressor Group delivers at least 720 L/min at 0.8 MPa working pressure, ensuring rapid air pressure build-up in the vehicle’s brake system. The twin-cylinder design (2×φ86×40 mm) provides a displacement of 464.7 ml, offering ample air supply for all pneumatic accessories [6†L2-L4].

Gear-Driven for Precision Timing

The WEICHAI WP12 Air Compressor Group is gear-driven from the engine’s front gear train, ensuring precise synchronization with the crankshaft. The robust gear drive eliminates belt slippage and maintenance issues associated with belt-driven compressors, providing consistent performance throughout the compressor’s service life.

Direct Fitment for All WP12 Applications

No modifications required for WP12 engines in Shacman, Sinotruk, Beiben, JAC, CAMC, Yutong, Kinglong, SDLG, XCMG, marine, and generator applications. Available for Euro III, Euro IV/V, China VI, and marine engine variants. The compressor fits all WP12 power outputs from 336 HP to 550 HP.

100% Quality Tested

Each WEICHAI WP12 Air Compressor Group undergoes rigorous quality control including displacement verification, pressure testing, leak testing, and dimensional inspection. IATF 16949 certified quality with full traceability. The WP12 engine platform has undergone over 45,000 hours of cumulative bench testing and over 50 million kilometers of whole vehicle road testing [8†L12-L14].

Global Logistics & Technical Support

Worldwide shipping from regional warehouses. Free air compressor installation torque charts (gear nut: 200-250 N·m), gasket replacement procedures, and troubleshooting guides provided with each order. Volume discounts available for fleet customers and engine rebuilders.

Why trust our WEICHAI WP12 Air Compressor Group? Supplying over 500 workshops globally. The WP12 engine achieves a B10 life of 1,800,000 km, and every air compressor component is designed and tested to meet this rigorous durability standard. The WP12 series engines are mature products originally derived from Austrian Steyr diesel engine technology, co-designed by Weichai European R&D Center and AVL Bosch.

Unlike aftermarket compressors that use inferior materials
and lack proper water-cooling, our genuine WEICHAI WP12 Air Compressor Group is
manufactured to original equipment specifications with documented quality control.
The water-cooled cylinder liner design is a key differentiator that significantly
improves reliability. The cooling system reduces cylinder wall temperature,
minimizing thermal stress on components and preventing oil coking inside the
compressor. This results in lower oil carryover into the air system, protecting
downstream brake valves, air dryers, and other pneumatic components [4†L17-L20].

The WEICHAI WP12 Air Compressor Group is designed to
withstand the extreme conditions generated by the WP12 engine’s turbocharged
common rail architecture. The compressor is mounted at the front of the engine
and driven directly by the gear train, eliminating belt slippage and reducing
maintenance requirements. The gear drive provides consistent compressor speed
regardless of engine load, ensuring stable air output across all operating
conditions. The compressor’s robust construction and water-cooled design make
it particularly suitable for heavy-duty applications where continuous compressor
operation is required.

Technical support includes air compressor installation
procedures: ensure engine is cool, drain coolant if required, disconnect air
lines and water lines, remove old compressor, clean mounting surfaces, install
new gasket, position compressor (612630030047), tighten mounting bolts to
specification, torque gear mounting nut to 200-250 N·m, reconnect water and
air lines, refill coolant if drained, run engine to check for leaks, and
verify air pressure build-up. Troubleshooting guides for symptoms like
insufficient air output (worn rings or valves), oil carryover (failed piston
rings or cylinder wear), compressor overheating (coolant flow restriction),
and unusual noise (worn bearings or loose gear drive) are provided.

For fleets, sample testing is available. Order one
WEICHAI WP12 Air Compressor Group for trial; volume pricing applies. Many
customers report over 500,000 km trouble-free compressor operation after
replacing failed original units with our genuine components. We provide
cross-reference support for part number verification—please provide your
engine serial number for accurate matching. We stock both complete compressor
assemblies (612630030047, 61800130043) and individual repair kits for partial
overhauls.

What are the Routine Maintenance Considerations for the WEICHAI WP12 Air Compressor Group?

  • Regular Visual Inspection for Leaks: During every scheduled maintenance (every 20,000 km or 500 operating hours), inspect the WEICHAI WP12 Air Compressor Group for air leaks (hissing sounds), water leaks (coolant stains), and oil leaks. Pay special attention to the cylinder head gasket, water line connections, and air discharge line. Any leak must be repaired immediately to prevent compressor damage and brake system failure.
  • Check Compressor Oil Level and Quality: The WEICHAI WP12 Air Compressor Group receives lubrication from the engine oil system. Check engine oil level regularly and change engine oil at factory-specified intervals (500 operating hours for WP12 series). Contaminated oil is a leading cause of compressor wear, ring sticking, and oil carryover into the air system.
  • Inspect Cooling System Flow: Every 50,000 km (30,000 miles) or 500 operating hours, verify that coolant is circulating properly through the WEICHAI WP12 Air Compressor Group’s water jacket. A restricted water supply will cause compressor overheating, leading to cylinder head warpage, valve damage, and premature failure. Ensure the coolant level is maintained and the coolant mixture (40-60% ethylene glycol) is correct.
  • Verify Compressor Gear Nut Torque: Every 100,000 km (60,000 miles) or 1,000 operating hours, use a calibrated torque wrench to verify that the WEICHAI WP12 Air Compressor Group gear mounting nut is tightened to 200-250 N·m. A loose gear nut can cause the compressor to lose drive, resulting in loss of brake air pressure and potential safety hazards. If the nut is found loose, replace it with a new locking nut and retorque to specification.
  • Monitor Air Pressure Build-Up Time: During routine operation, observe the time required for the air system to build pressure from 0 to 100 psi. Excessively long build times indicate compressor wear (worn rings or valves) or intake restrictions. If build time exceeds normal parameters, inspect and overhaul the WEICHAI WP12 Air Compressor Group.
  • Inspect Air Intake Filter: The WEICHAI WP12 Air Compressor Group draws air through the engine’s air cleaner. Inspect the air cleaner element regularly and replace at factory-specified intervals (typically 30,000-50,000 km). A clogged air filter restricts compressor intake, reducing air output and causing overheating.
  • Overhaul at 500,000 km: For high-mileage WP12 engines, perform a complete air compressor overhaul at 500,000 km (300,000 miles) or 10,000 operating hours. Replace the WEICHAI WP12 Air Compressor Group (612630030047) or use the complete repair kit (612630030047) to rebuild the existing compressor. The overhaul kit includes all necessary gaskets, piston rings, valves, and seals. Preventive replacement eliminates the risk of sudden compressor failure, loss of brake air pressure, and potential safety hazards. The WP12 engine platform’s B10 life of 1,800,000 km is achievable only when all air compressor components are properly maintained.

Also monitor the air dryer and brake system for signs of
oil carryover. If the air dryer discharges oil or the brake valves become
contaminated, the WEICHAI WP12 Air Compressor Group may have worn piston
rings or cylinder scoring. In such cases, overhaul or replace the compressor
immediately to prevent damage to the entire air brake system.

For severe-duty applications (mining, construction,
heavy haul, marine), reduce compressor inspection intervals to every 25,000 km
(15,000 miles) or 250 operating hours. High ambient temperatures, dust, and
continuous operation accelerate ring wear and valve degradation. Marine
applications require additional corrosion checks—saltwater environments can
corrode the compressor housing and water lines. Use marine-grade coolant with
anti-corrosion additives in marine applications.

When overhauling the WEICHAI WP12 Air Compressor Group
using the repair kit (612630030047), always replace all gaskets, piston rings,
inlet and exhaust valves, and seals. Clean all components thoroughly before
reassembly. Lubricate piston rings and cylinder walls with clean engine oil
during assembly. After reassembly, torque all fasteners to specification,
refill coolant, and run the engine to verify proper operation and check for
leaks.

Maintain a logbook of all air compressor maintenance:
dates of inspections, leak detection findings, oil analysis results, air
pressure build-up times, and any abnormal findings. For fleet operators,
tracking air pressure build-up time is a powerful predictive maintenance
tool—a gradual increase in build-up time often indicates developing compressor
wear, providing ample warning before complete failure occurs. Regular air
compressor inspection and maintenance ensure the WP12 engine’s brake system
remains reliable and safe.

Technical Summary: The WEICHAI WP12 Air Compressor Group is a critical safety component that directly affects vehicle brake system reliability and pneumatic accessory operation. Follow recommended maintenance: visual leak inspection every 20,000 km, cooling system check every 50,000 km, compressor gear nut torque verification every 100,000 km, and complete overhaul at 500,000 km. Expect up to 800,000 km trouble-free compressor operation with proper maintenance. The WP12 engine achieves a minimum fuel consumption rate of 183g/(kW·h) and has a maximum torque of 2,110 N·m [8†L19-L23].

In summary, the WEICHAI WP12 Air Compressor Group features
water-cooled cylinder liner design for superior reliability, twin-cylinder
configuration (2×φ86×40 mm) with 464.7 ml displacement, 0.8 MPa working pressure,
≥720 L/min output, gear-driven precision timing, and direct fitment for all
WP12 applications. Whether you are rebuilding a Shacman X3000, Sinotruk HOWO,
Beiben truck, Yutong bus, SDLG wheel loader, marine vessel, or generator set,
choosing a genuine air compressor group directly impacts brake system safety,
vehicle reliability, and overall uptime.

For workshops performing in-frame overhauls, we recommend
ordering the WEICHAI WP12 Air Compressor Group as a complete kit including
the compressor assembly (612630030047), gasket set, and mounting hardware.
For partial overhauls, the repair kit (612630030047) provides all necessary
components to rebuild an existing compressor. This approach eliminates hidden
failures and gives your customer a worry-free warranty period. All compressors
are pre-inspected for displacement, pressure output, and leak-tightness before
shipment.

Our inventory includes both standard compressors for
highway truck applications (612630030047) and marine variants (612630030336)
with enhanced corrosion protection for saltwater environments. The standard
WEICHAI WP12 Air Compressor Group provides excellent service life for long-haul
trucking, while marine variants feature additional corrosion-resistant coatings
for saltwater resistance. We provide cross-reference support for part number
verification—please provide your engine serial number for accurate matching.
We stock complete compressor assemblies, individual repair kits, gaskets,
and mounting hardware.

We provide after-sales documentation including compressor
displacement test certificates, pressure output verification reports, material
certificates, installation torque specifications (gear nut: 200-250 N·m), and
diagnostic trouble code (DTC) guides for compressor-related faults upon request.
Every WEICHAI WP12 Air Compressor Group component is packaged in protective
foam-lined boxes to prevent damage during shipping. Bulk orders receive custom
palletizing and export documentation assistance. Express shipping available
for urgent repairs—most orders dispatched within 24 hours.


All specifications based on original WEICHAI WP12 engine data. Cross-check part numbers with engine serial number. The WEICHAI WP12 Air Compressor Group includes OEM references 612630030047 (twin-cylinder assembly, 2×φ86×40, 464.7ml, 0.8 MPa, ≥720 L/min, ≤7.8 kW) and 61800130043 (heavy-duty variant). Always torque compressor gear mounting nut to 200-250 N·m, maintain proper coolant level, use clean engine oil, and verify no air, water, or oil leaks after installation [6†L2-L4].

Related Products

Online Catalog of WEICHAI Engine Parts

Learn More

If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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WEICHAI WP12 Intercooler Assembly https://deruna.com/weichai-wp12-intercooler-assembly.html https://deruna.com/weichai-wp12-intercooler-assembly.html#respond Tue, 21 Apr 2026 07:59:20 +0000 https://deruna.com/?p=113906 […]]]>

WEICHAI WP12 Intercooler Assembly

The WEICHAI WP12 Intercooler Assembly is a high-efficiency
charge air cooler that reduces the temperature of compressed intake air before
it enters the engine cylinders. As genuine

WEICHAI Engine Parts
, this intercooler
assembly plays a critical role in the WP12 turbocharged and intercooled engine
platform, enabling optimal combustion efficiency across all WP12 variants from
336 HP to 550 HP. The WEICHAI WP12 Intercooler Assembly is designed to withstand
extreme operating conditions and deliver consistent cooling performance.

WEICHAI WP12 Intercooler Assembly

WEICHAI WP12 Intercooler Assembly – High-efficiency
aluminum alloy charge air cooler with optimized fin density and precision-welded construction.

What is the WEICHAI WP12 Intercooler Assembly?

The WEICHAI WP12 Intercooler Assembly (also known as a charge
air cooler) is a heat exchanger mounted between the turbocharger compressor outlet
and the engine intake manifold. Its primary function is to cool the compressed
intake air after it leaves the turbocharger, increasing air density and reducing
the risk of engine knocking. The intercooler is an integral component of the
WP12 engine’s turbocharged and intercooled architecture, which is standard across
the entire WP12 series [1†L9-L12][13†L9-L10].

The WEICHAI WP12 Intercooler Assembly is manufactured from
high-grade aluminum alloy with advanced thermal transfer technology. The core
features optimized fin density and internal passages that maximize heat dissipation
while minimizing pressure drop across the system. The intercooler is available in
multiple OEM configurations including Z95259531502 (600×300×80mm core, 76mm
inlet/outlet) and DZ9114530344 (580×280×75mm core, 70mm inlet/outlet) for
different Shacman truck applications [18†L17-L20][19†L20-L23].

The WEICHAI WP12 Intercooler Assembly is part of the WP12
engine series, which features an inline 6-cylinder, four-stroke design with a
displacement of 11.596 L (126 mm bore × 155 mm stroke). The engine is equipped
with four valves per cylinder and an electronically controlled high-pressure
common-rail fuel injection system. The turbocharged and intercooled architecture
enables the engine to achieve a minimum fuel consumption rate as low as 191 g/kW·h
and a maximum torque of up to 2,110 N·m at 1,000-1,400 RPM [14†L10-L11][15†L6-L7][14†L6-L7].

Applications for the WEICHAI WP12 Intercooler Assembly
include Shacman X3000/F3000/X5000, Sinotruk HOWO A7/T7H, Beiben trucks, JAC trucks,
CAMC vehicles, Yutong and Kinglong buses, SDLG wheel loaders, XCMG equipment,
marine WP12C engines (WP12C400-18, WP12C450-21, WP12C500-21, WP12C550-21), and
stationary generator sets. The intercooler is compatible with WP12 power outputs
from 336 HP to 550 HP across Euro III, Euro IV, Euro V, China VI, and marine
IMO II emission standards [15†L11-L15][16†L11-L14].

The WP12 engine series has undergone over 45,000 hours of
cumulative bench testing and over 50 million kilometers of whole vehicle road
testing, proving the reliability of every component including the intercooler
assembly. The intercooler is designed to operate reliably in ambient temperatures
from -35°C to 50°C and at altitudes up to 4,100 meters with less than 5% power
loss [13†L22-L23][14†L27-L28][14†L14-L16].

Product Parameters of WEICHAI WP12 Intercooler Assembly

NO. Part NO Description
1 Z95259531502 WP12 Intercooler (600×300×80mm, 76mm inlet/outlet, 3.5 bar max pressure, 8.2kg) [18†L17-L20]
2 DZ9114530344 Shacman Intercooler (580×280×75mm, 70mm inlet/outlet, 3.2 bar max pressure, 7.8kg) [19†L20-L23]
3 612630120237 WP13 Marine Intercooler Assembly (Weichai WP13 marine diesel engine) [10†L10-L11]
4 612600115538 / 1551213-00282-001 Intercooler Outlet Pipe (WP12/WD12, D100/100×L340) [12†L2-L4]
5 612630110373 Intercooler Connecting Pipe (WP12/WP13, 530HP) [7†L2-L3]
6 1002784105Z Air Intercooler (WP12/WP13, universal fitment) [8†L2-L4]

The table above lists common service parts for the WEICHAI WP12
Intercooler Assembly and its related components. The intercooler core dimensions,
inlet/outlet sizes, and maximum pressure ratings vary by OEM configuration. The
Z95259531502 intercooler achieves a temperature reduction of up to 60°C with a
pressure drop of less than 2.5 kPa, significantly improving combustion efficiency
and engine power output [18†L19-L20].

Why Choose Our WEICHAI WP12 Intercooler Assembly?

Advanced Thermal Transfer Technology

Our WEICHAI WP12 Intercooler Assembly features a high-efficiency core design with optimized fin density and tube configuration that maximizes heat transfer while maintaining minimal pressure drop. The intercooler can reduce compressed intake air temperature by up to 60°C, significantly improving air density for better combustion [18†L20-L21].

Up to 20% Engine Power Increase

The WEICHAI WP12 Intercooler Assembly works in conjunction with the turbocharger to increase engine power by approximately 20% compared to naturally aspirated engines. The intercooler lowers the temperature of the inlet gas from approximately 130°C to 60°C, removing the negative effects of the turbo and increasing combustion efficiency [2†L33-L36].

Ultra-Low Fuel Consumption

The WP12 engine equipped with our intercooler assembly achieves a minimum fuel consumption rate as low as 183-191 g/kW·h, significantly lower than many competing engines in its class. The efficient cooling of charge air increases air density for better combustion, translating to more complete fuel burn and reduced emissions [14†L21-L22][15†L6-L7].

Direct Fitment for All WP12 Applications

No modifications required for WP12 engines in Shacman, Sinotruk, Beiben, JAC, CAMC, Yutong, Kinglong, SDLG, XCMG, marine, and generator applications. Available for Euro III, Euro IV/V, China VI, and marine engine variants. The intercooler is compatible with WP12 power outputs from 270 HP to 550 HP [11†L10-L11].

100% Quality Tested

Each WEICHAI WP12 Intercooler Assembly undergoes rigorous quality control including pressure leak testing, thermal cycling validation, dimensional inspection, and fin integrity verification. IATF 16949 certified quality with full traceability. The WP12 engine platform has proven its reliability through over 45,000 hours of bench testing [14†L14-L16].

Global Logistics & Technical Support

Worldwide shipping from regional warehouses. Free intercooler installation torque charts, pressure test procedures, and troubleshooting guides provided with each order. Volume discounts available for fleet customers and engine rebuilders. The cooling system meets ambient temperature requirements up to 46°C for vehicle applications [13†L44-L46].

Why trust our WEICHAI WP12 Intercooler Assembly? Supplying over 500 workshops globally. The WP12 engine achieves a B10 life of 1,800,000 km, and every intercooler component is designed and tested to meet this rigorous durability standard. The WP12 series engines are mature products originally derived from Austrian Steyr diesel engine technology, co-designed by Weichai European R&D Center and AVL Bosch [4†L21-L23].

Unlike aftermarket intercoolers that use inferior materials
and lack proper pressure testing, our genuine WEICHAI WP12 Intercooler Assembly
is manufactured to original equipment specifications with documented quality
control. The intercooler is constructed from high-grade aluminum alloys with
precision-welded joints that ensure leak-free operation under high-pressure
conditions up to 3.5 bar. The robust construction resists vibration, thermal
stress, and environmental corrosion, ensuring reliable performance in the most
demanding applications [18†L10-L13].

The WEICHAI WP12 Intercooler Assembly is a critical component
of the engine’s turbocharged and intercooled architecture. When air is compressed
by the turbocharger, its temperature rises significantly. The intercooler reduces
this temperature before the air enters the combustion chamber, increasing air
density by approximately 30%. This denser charge allows more fuel to be burned
efficiently, resulting in increased power output while reducing exhaust emissions
and improving fuel economy. The WP12 engine achieves a maximum torque of up to
2,110 N·m with torque reserve of 25-35%, enabling excellent low-speed response
and acceleration [14†L6-L7][15†L7-L8].

Technical support includes intercooler installation procedures:
allow engine to cool completely, drain coolant if required, remove old intercooler,
clean mounting surfaces, inspect intercooler pipes and hoses for damage, position
new intercooler, torque mounting bolts to specification, reconnect all hoses and
clamps, refill coolant if drained, run engine to operating temperature, and check
for boost pressure leaks using soapy water. Troubleshooting guides for symptoms
like loss of power (intercooler leak or restriction), black smoke (insufficient
charge air cooling), and engine knocking (high intake air temperature) are provided.
The intercooler and heat exchanger are reasonably arranged at both ends of the
diesel engine, with reasonable matching between intake & exhaust and fuel system
[0†L14-L16].

For fleets, sample testing is available. Order one WEICHAI
WP12 Intercooler Assembly for trial; volume pricing applies. Many customers report
over 500,000 km trouble-free intercooler operation after replacing cracked or
leaking original units with our genuine components. We provide cross-reference
support for part number verification—please provide your engine serial number for
accurate matching. We stock both standard intercoolers for highway truck
applications and marine variants (612630120237) with enhanced corrosion resistance
for saltwater environments [10†L10-L11].

What are the Routine Maintenance Considerations for the WEICHAI WP12 Intercooler Assembly?

  • Regular Visual Inspection for Leaks and Damage: During every scheduled maintenance (every 20,000 km or 500 operating hours), inspect the WEICHAI WP12 Intercooler Assembly for cracks in the core, damaged fins, oil stains (indicating turbocharger seal failure), and leaks at the inlet/outlet connections. Use a boost pressure tester to verify system integrity—any pressure drop indicates a leak requiring immediate repair [3†L22-L25].
  • Check for Oil or Debris Accumulation: Every 50,000 km (30,000 miles) or 500 operating hours, inspect the intercooler inlet and outlet for oil accumulation. Oil in the intercooler indicates turbocharger seal wear or excessive crankcase blow-by. If significant oil is found, the intercooler should be removed and cleaned with a suitable solvent, and the turbocharger should be inspected for seal failure.
  • Inspect Intercooler Hoses and Clamps: Every 100,000 km (60,000 miles) or 1,000 operating hours, inspect all intercooler connecting hoses (612600115538, 612630110373) for cracks, swelling, or softening. Check all hose clamps for tightness—loose clamps cause boost pressure leaks, resulting in loss of power, black smoke, and increased fuel consumption. Replace any damaged hoses immediately [12†L2-L4][7†L2-L3].
  • Clean Intercooler Fins and External Surfaces: Regularly clean the intercooler fins using compressed air or low-pressure water. Do not use high-pressure washers directly on the intercooler fins, as this can bend or damage the delicate cooling fins, reducing cooling efficiency. Clogged fins restrict airflow and reduce the intercooler’s ability to cool the charge air. Internal pipeline cleaning should be performed annually or during engine overhaul [4†L4-L5][4†L10-L11].
  • Monitor Engine Performance and Smoke Color: Black smoke under acceleration indicates incomplete combustion, often caused by insufficient boost pressure from a leaking intercooler or damaged charge air pipes. A gradual loss of power accompanied by black smoke is a classic symptom of a defective intercooler or boost leak [3†L22-L25]. If these symptoms appear, pressure-test the charge air system immediately.
  • Replace Intercooler at Signs of Internal Contamination: If the WEICHAI WP12 Intercooler Assembly is found to be heavily contaminated with oil from a turbocharger seal failure, it should be replaced. While the intercooler can be cleaned, residual contamination may cause engine knocking or oil consumption. A new intercooler is the safest and most reliable option after a turbocharger failure.
  • Pressure Test the Intercooler During Overhaul: During major engine overhauls (every 200,000-300,000 km), pressure test the WEICHAI WP12 Intercooler Assembly to verify its integrity. Apply 3.5 bar of compressed air to the intercooler inlet, plug the outlet, and submerge in water to check for bubbles. Any bubbles indicate leaks requiring intercooler replacement. The maximum allowable pressure for the Z95259531502 intercooler is 3.5 bar [18†L19-L20].
  • Complete Intercooler System Overhaul at 500,000 km: For high-mileage WP12 engines, perform a complete charge air system overhaul at 500,000 km (300,000 miles) or 10,000 operating hours. Replace the WEICHAI WP12 Intercooler Assembly, all intercooler hoses (612600115538, 612630110373), hose clamps, and inspect the turbocharger for wear. Aluminum intercooler cores can develop micro-cracks over time due to thermal cycling and vibration; preventive replacement eliminates the risk of sudden boost pressure loss, power reduction, and increased emissions. The WP12 engine platform’s B10 life of 1,800,000 km is achievable only when all charge air system components are properly maintained [14†L14-L16].

Also monitor the engine’s exhaust temperature and coolant
temperature. A higher than normal exhaust gas temperature under load may indicate
insufficient intercooler cooling, often caused by clogged fins or internal scale
buildup. The WP12 engine’s intake heating function meets the requirements of start
at -35°C in cold regions, and the hyperboloid fan features large air volume, low
power consumption, and low noise, meeting the ambient temperature limit of 46°C
for vehicle cooling [13†L44-L46].

For severe-duty applications (mining, construction, heavy haul,
marine), reduce intercooler inspection intervals to every 25,000 km (15,000 miles)
or 250 operating hours. High ambient temperatures, dust, and vibration accelerate
fin damage and hose degradation. Marine applications require additional corrosion
checks—saltwater environments can accelerate corrosion of aluminum intercooler
cores and fittings. Apply anti-corrosion coating to intercooler exteriors in marine
applications where available.

When installing a new WEICHAI WP12 Intercooler Assembly,
ensure that all mounting points are properly aligned and that the intercooler does
not contact any other engine components. Use new gaskets and O-rings at all
connections. Torque all mounting bolts to manufacturer specifications. After
installation, perform a boost pressure leak test by pressurizing the system to
3.5 bar and listening for hissing sounds or using soapy water to detect leaks.
The efficient cooling of charge air increases air density for better combustion,
improving fuel economy and reducing emissions [2†L16-L18].

Maintain a logbook of all charge air system maintenance:
dates of intercooler inspections, boost pressure test results, hose replacement
intervals, and any abnormal findings. For fleet operators, tracking boost pressure
at full load is a powerful predictive maintenance tool—a gradual decrease in boost
pressure often indicates developing intercooler leaks or clogged charge air pipes,
providing ample warning before complete system failure occurs. Regular intercooler
inspection and maintenance ensure the WP12 engine continues to deliver optimal
power, fuel economy, and emissions performance.

Technical Summary: The WEICHAI WP12 Intercooler Assembly is a critical charge air cooling component that directly affects engine power output, fuel economy, emissions compliance, and engine longevity. Follow recommended maintenance: visual leak inspection every 20,000 km, oil accumulation check every 50,000 km, hose and clamp inspection every 100,000 km, clean intercooler fins regularly, pressure test during overhauls, and complete charge air system overhaul at 500,000 km. Expect up to 800,000 km trouble-free intercooler operation with proper maintenance. The WP12 engine features a turbocharged and intercooled architecture with a displacement of 11.596 L and achieves a minimum fuel consumption rate as low as 183 g/kW·h [14†L21-L22].

In summary, the WEICHAI WP12 Intercooler Assembly features
advanced thermal transfer technology (up to 60°C temperature reduction), high-efficiency
aluminum alloy core (600×300×80mm or 580×280×75mm configurations), up to 3.5 bar
maximum pressure rating, and direct fitment for all WP12 applications. Whether you
are rebuilding a Shacman X3000, Sinotruk HOWO, Beiben truck, Yutong bus, SDLG wheel
loader, marine vessel, or generator set, choosing a genuine intercooler assembly
directly impacts engine power, fuel economy, emissions compliance, and overall
vehicle reliability. The WP12 series engines are mature products originally derived
from Austrian Steyr diesel engine technology, co-designed by Weichai European R&D
Center and AVL Bosch [4†L21-L23].

For workshops performing in-frame overhauls, we recommend
ordering the WEICHAI WP12 Intercooler Assembly as a complete kit including the
intercooler (Z95259531502 or DZ9114530344), intercooler outlet pipe (612600115538),
intercooler connecting pipe (612630110373), and all mounting hardware. This approach
eliminates hidden failures and gives your customer a worry-free warranty period.
All intercoolers are pre-inspected for pressure integrity, fin condition, and
dimensional accuracy before shipment [12†L2-L4][7†L2-L3].

Our inventory includes both standard intercoolers for highway
truck applications (Z95259531502, DZ9114530344) and marine variants (612630120237)
with enhanced corrosion protection for saltwater environments. The standard WEICHAI
WP12 Intercooler Assembly provides excellent service life for long-haul trucking,
while marine variants feature additional anti-corrosion treatment for saltwater
resistance. We provide cross-reference support for part number verification—please
provide your engine serial number for accurate matching. We stock complete
intercooler assemblies, individual intercooler pipes, hose clamps, and mounting
hardware kits [10†L10-L11].

We provide after-sales documentation including intercooler
dimensional inspection reports (600×300×80mm or 580×280×75mm), material certificates
(aluminum alloy composition), pressure test certifications (up to 3.5 bar), temperature
reduction specifications (up to 60°C), and diagnostic trouble code (DTC) guides for
charge air system-related faults upon request. Every WEICHAI WP12 Intercooler Assembly
is packaged in protective foam-lined boxes to prevent damage during shipping. Bulk
orders receive custom palletizing and export documentation assistance. Express
shipping available for urgent repairs—most orders dispatched within 24 hours [18†L17-L20].


All specifications based on original WEICHAI WP12 engine data. Cross-check part numbers with engine serial number and emission standard. The WEICHAI WP12 Intercooler Assembly includes OEM references Z95259531502 (600×300×80mm core, 76mm inlet/outlet, 3.5 bar max pressure, 8.2kg) and DZ9114530344 (580×280×75mm core, 70mm inlet/outlet, 3.2 bar max pressure, 7.8kg) [18†L17-L20][19†L20-L23]. The intercooler achieves a temperature reduction of up to 60°C and a pressure drop of less than 2.5 kPa. Always pressure test the system after installation, clean intercooler fins regularly, and use only genuine WEICHAI replacement parts.

Related Products

Online Catalog of WEICHAI Engine Parts

Learn More

If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.

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