- ADDRESS：Wanda Plaza, Jinan, Shandong, China
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
The WEICHAI WP12 Dipstick Group is a precision-engineered oil level measurement assembly designed specifically for the WP12 diesel engine platform. This complete dipstick group includes the oil level gauge rod, guide tube, mounting brackets, and sealing components necessary for accurate oil level monitoring. Proper lubrication is critical for engine longevity, and the WEICHAI WP12 Dipstick Group provides fleet operators and maintenance professionals with a reliable, easy-to-read method for verifying oil levels during daily pre-start checks. For genuine replacement parts and complete engine service components, always source from verified WEICHAI Engine Parts to guarantee OEM fitment, consistent quality, and long-term reliability.
The WEICHAI WP12 Dipstick Group is a complete oil level measurement system that allows operators to quickly and accurately check the engine oil level in the WP12 diesel engine. The assembly consists of a graduated metal dipstick rod with clearly marked low and high oil level indicators, a guide tube that routes the dipstick into the oil pan, a sealing cap or O-ring to prevent dirt ingress and oil mist escape, and mounting brackets that secure the tube to the engine block. Located on the crankcase near the oil filter assembly, the dipstick provides direct access to the oil reservoir for routine maintenance checks.
The dipstick rod is manufactured from cold-rolled spring steel or stainless steel, offering excellent corrosion resistance and dimensional stability across a wide temperature range (-35°C to 120°C). The measurement markings are laser-etched or mechanically stamped at precise intervals corresponding to the engine’s safe oil level range. For the WP12 engine, the oil volume difference between the low mark and the high mark on the dipstick is approximately 3 liters, providing operators with a clear visual reference for topping up. The guide tube is typically fabricated from seamless steel tubing with a corrosion-resistant coating, sized to provide a snug fit for the dipstick without binding.
The WEICHAI WP12 Dipstick Group is designed for the 11.596-liter inline-six WP12 engine used in heavy trucks (HOWO, SHACMAN, FOTON), construction machinery, marine propulsion, and 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 dipstick length is calibrated specifically for the WP12 oil pan configuration, ensuring that the low mark accurately reflects the minimum safe oil level (typically 2-3 liters above the oil pickup tube inlet) and the high mark corresponds to the maximum fill level that prevents crankshaft windage losses.
In addition to the basic dipstick rod and tube, the complete WEICHAI WP12 Dipstick Group includes all necessary seals and fasteners for installation. A high-temperature O-ring or rubber seal at the tube entrance prevents oil mist from escaping the crankcase, which would otherwise lead to gradual oil loss and engine bay contamination. The tube is typically secured to the engine block using one or two mounting brackets with rubber vibration isolators, preventing metal-to-metal contact that could wear through the tube over time. Replacement dipstick groups are available as complete assemblies or as individual components.
Every genuine WEICHAI WP12 Dipstick Group includes a traceable part number and batch code. The dipstick rod features a yellow or orange plastic handle with finger grips for easy extraction, even when wearing work gloves. The handle is permanently bonded to the metal rod using a chemical-resistant adhesive that withstands exposure to engine oil, diesel fuel, and common workshop solvents. Counterfeit dipstick groups often use inferior materials that become brittle and crack after exposure to high under-hood temperatures, leading to handle separation and dipstick loss inside the guide tube.
For marine applications, the WEICHAI WP12 Dipstick Group includes an extended guide tube to accommodate the engine’s installation angle within the vessel hull. Marine dipsticks are also marked with a special “heeled” or “floating” calibration that accounts for the engine’s operational tilt when the boat is on plane. In stationary generator applications, the dipstick group is identical to the truck version, as the engine operates on a level surface. Always confirm your specific application when ordering replacement components.
| NO. | Part NO | Description |
|---|---|---|
| 1 | 612600012064 | Oil Dipstick Assembly (Complete Rod + Handle) |
| 2 | 612630010100 | Oil Level Gauge Tube Assembly (Complete with Brackets) |
| 3 | 612630010098 | Oil Dipstick (Rod Only, Without Handle) |
| 4 | 1000723232 | Dipstick Replacement (Short Version for Euro V) |
| 5 | 612600012064/12034 | Dipstick Assembly (for WP12/WP13, with Seal) |
| 6 | 1451111-00226-001 | Oil Dipstick OEM Cross-Reference |
| 7 | 1451211-00117-001 | Oil Level Gauge Tube OEM Cross-Reference |
| 8 | 612600010533 | Dipstick Tube Cap (Plastic, with Seal) |
| 9 | 612600010557 | Dipstick Tube (Steel, Bare Tube Only) |
| 10 | 612600012034 | Dipstick Assembly (With Silicone Seal Ring) |
| 11 | 612600012206 | Dipstick Guide Tube Mounting Bracket |
| 12 | 612600012207 | Dipstick Tube Rubber Vibration Isolator |
| 13 | 612600012208 | Dipstick O-Ring Seal (High-Temperature, Set of 5) |
| 14 | 612630061000 | Dipstick Tube Rubber Connector Hose |
| 15 | 612600150382 | Oil Pan Assembly (Complete, with Dipstick Port) |
Our WEICHAI WP12 Dipstick Group is manufactured from cold-rolled spring steel (Type 301) with zinc-phosphate corrosion protection. The handle is molded from glass-filled nylon that resists cracking at under-hood temperatures up to 120°C, ensuring long service life.
Each dipstick is laser-etched with low and high marks calibrated specifically for the WP12 oil pan configuration. The 3.0-liter capacity between marks matches factory specifications, providing accurate oil level indication for safe engine operation.
We offer the WEICHAI WP12 Dipstick Group as a complete kit including dipstick rod, guide tube, mounting brackets, rubber isolators, and O-ring seals. Individual components are also available for partial replacements when only one part requires renewal.
Pre-bent guide tubes and correctly positioned mounting brackets ensure direct bolt-on installation for WP12 engines in HOWO, SHACMAN, FOTON, and other Chinese heavy trucks. No modifications or cutting required.
We stock marine-calibrated dipsticks for WP12 marine engines that account for operational tilt. Generator versions with standard calibration are also available. Specify your application when ordering to receive the correct calibration.
We maintain substantial stock of WEICHAI WP12 Dipstick Group components in warehouses across Asia, Europe, and the Americas. Express shipping options minimize downtime for fleet operators.
Unlike generic aftermarket dipsticks that use uncoated mild steel prone to rusting and inaccurate stamping, our WEICHAI WP12 Dipstick Group is manufactured to original equipment specifications. The dipstick rod features a durable yellow zinc dichromate or black oxide finish that resists corrosion from acidic engine oil (total acid number up to 3.0 mg KOH/g). The handle is ultrasonically welded to the metal rod, preventing separation even after thousands of insertion cycles. This attention to detail ensures that your WP12 engine receives accurate oil level readings for its entire service life.
Furthermore, our guide tubes are fabricated from seamless steel with a welded mounting bracket that precisely positions the dipstick within the oil pan. The bracket includes a rubber isolator that dampens engine vibration, preventing the tube from cracking at the mounting point. For applications where the original tube has been damaged by corrosion or impact, we offer replacement tubes that include pre-installed O-rings and alignment marks for correct rotational orientation.
Technical documentation included with the WEICHAI WP12 Dipstick Group provides installation torque specifications (12-15 Nm for mounting bracket bolts), correct dipstick insertion depth (fully seated in the guide tube), and oil level reading procedures (engine off, level surface, wait 5-10 minutes after shutdown). We also include a troubleshooting guide for common issues such as oil level reading inconsistencies (often caused by a bent dipstick tube or worn O-ring) and difficulty inserting the dipstick (usually due to a kinked guide tube or debris in the tube).
For large fleet customers, we offer sample evaluation: order one WEICHAI WP12 Dipstick Group for trial installation. After validation, volume pricing applies. Many return customers report that our dipstick groups last the full life of the engine (over 1,000,000 km) without handle cracking or marking wear, compared to low-cost alternatives that often fail within 200,000 km.
Beyond the checklist above, pay attention to oil consumption trends. If the engine consistently requires oil additions between changes but the dipstick shows normal levels after each addition, verify the dipstick calibration. A dipstick that is too short will show a falsely high level, leading to under-filling. A dipstick that is too long will show a falsely low level, leading to over-filling. Compare the installed dipstick length against a known-good OEM unit if calibration is suspected. The correct overall length for the standard WP12 dipstick is 1,585-1,625 mm.
For engines operating in extremely dusty environments (mines, quarries, agricultural applications), consider installing a dipstick dust cap or cover. Dust ingress through the guide tube opening can contaminate the engine oil and accelerate wear. The WEICHAI WP12 Dipstick Group includes a sealing cap on the handle for this purpose. Ensure the cap is fully seated after each oil level check. If the original cap is missing, replace it immediately.
When performing an oil change, always remove the dipstick and leave it out during the drain and refill process. This allows the oil pan to vent, promoting faster draining. After refilling with the specified oil quantity (typically 28-32 liters for a dry WP12 engine, depending on oil pan configuration), start the engine, run for 30 seconds, stop, wait 5 minutes, then check the level using the WEICHAI WP12 Dipstick Group. Add small amounts of oil until the level reaches the high mark. Never rely solely on the specified fill quantity — always verify with the dipstick.
Finally, maintain a service log for the WEICHAI WP12 Dipstick Group recording any replacement events, observed wear, and calibration checks. This data helps predict when components are approaching end of life. For fleet operators, standardized replacement of dipstick O-rings every 200,000 km and complete dipstick groups every 500,000 km eliminates oil level reading errors that can lead to engine damage from under-filling or over-filling.
In summary, the WEICHAI WP12 Dipstick Group is an often-overlooked but essential component for any WP12 engine maintenance program. Its simple design belies its importance — inaccurate oil level readings due to a worn or incorrect dipstick can lead to catastrophic engine failure. Whether you are performing routine oil changes on a HOWO dump truck, maintaining a fleet of SHACMAN tractors, or servicing a WP12 marine propulsion engine, using a genuine dipstick group ensures that you have accurate information to make critical oil level decisions.
For workshops performing engine rebuilds, we recommend ordering the WEICHAI WP12 Dipstick Group together with a new oil pan gasket and oil filter. The dipstick group is the last component installed before filling with oil, and a new assembly ensures that the rebuilt engine receives accurate oil level readings from day one. We provide installation guides with torque specifications and orientation marks for all WP12 engine variants.
Our inventory includes both standard-length dipsticks for on-highway trucks and extended-length versions for deep-sump marine oil pans. We also offer custom dipstick marking services for non-standard oil pan configurations, though lead times apply. For urgent repairs, we stock pre-assembled dipstick groups that include the rod, handle, O-ring, and guide tube in a single box, ready for installation.
We also provide after-sales documentation including material certificates and dimensional inspection reports upon request. Every WEICHAI WP12 Dipstick Group is packaged in a foam-lined box to prevent rod bending during transit. Bulk orders receive custom export crating and documentation.
All specifications are based on original WEICHAI WP12 engine data. Actual product dimensions 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
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.
We are a first-class heavy duty vehicles and spare parts supplier in China. which covers from engine, gearbox, cab, axle assemblies to main assembly accessories, electrical parts and other chassis parts like brake, clutch and steering parts.
A PROFESSIONAL CHINA TRUCK AND SPARE PARTS SUPPLIER
@Copyright DERUNA
