Sinotruk Sitrak Gearbox Parts

Tested through 500+ cycle simulations, these gearbox parts achieve 99.8% operational reliability,
minimizing downtime for Sinotruk Sitrak fleet managers.
Sinotruk Sitrak Gearbox Parts

Sinotruk Sitrak Gearbox Parts

ABOUT SITRAK TRUCK GEARBOX PARTS

Top Sinotruk Sitrak Gearbox Parts Supplier

As a Top Sinotruk Sitrak Gearbox Parts Supplier, we specialize in premium, OEM-compatible components—critical parts like gear sets, synchronizer rings, main shafts, counter shafts, shift sleeves, seal kits—engineered to match Sinotruk Sitrak’s original specs for seamless fit, reliability; we prioritize quality via certified manufacturers, strict checks (material testing, dimensional accuracy checks, torque resistance validation) to withstand heavy use, offering flexible solutions (bulk fleet orders, urgent repair shop replacements, distributor supply), plus responsive support, tracking, competitive pricing.

Extensive Range of Sinotruk Sitrak Gearbox Parts

Clutch Bearing

The Clutch Bearing of Sinotruk Sitrak Gearbox Parts uses high-quality chrome steel rolling elements and a reinforced cage, which can stably withstand axial loads during clutch operation and improve overall durability. This Clutch Bearing is pre-lubricated with high-temperature resistant grease at the factory, eliminating frequent re-lubrication and reducing maintenance costs.
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Clutch Plate+Clutch Basket

The Clutch Plate+Clutch Basket set of Sinotruk Sitrak Gearbox Parts uses heat-treated manganese steel for the basket and ceramic friction materials for the plate, withstanding high temperatures from heavy-duty clutch engagement. As an integrated component of Sinotruk Sitrak Gearbox Parts, this Clutch Plate+Clutch Basket combination has a precise fit, ensuring smooth clutch separation/engagement without jamming.
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Rear Gearbox Locking Clutch

The Rear Gearbox Locking Clutch of Sinotruk Sitrak Gearbox Parts firmly locks the selected gear during high-speed driving, preventing accidental gear disengagement and ensuring driving safety. As a safety-focused component of Sinotruk Sitrak Gearbox Parts, this Rear Gearbox Locking Clutch has a compact design, saving internal gearbox space and facilitating integration with other components.
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Flexible Transmission Selection Axis

The Flexible Transmission Selection Axis in Sinotruk Sitrak Gearbox Parts adopts a rubber-buffered flexible structure, which absorbs vibration during gear selection and enhances the smoothness of the operating handle. This Flexible Transmission Selection Axis features high dimensional precision, ensuring accurate alignment with the gearbox shift mechanism to avoid misshifting.
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Flexible Gear Shift Axis Unit

The Flexible Gear Shift Axis Unit in Sinotruk Sitrak Gearbox Parts adopts a segmented flexible design, which reduces vibration transfer from the gearbox to the shift lever and improves driving comfort. Tailored for Sinotruk Sitrak Gearbox Parts, this Flexible Gear Shift Axis Unit is coated with anti-corrosion plating, resisting rust in humid/dusty environments and prolonging its service life.
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Brake Disc

The Brake Disc of Sinotruk Sitrak Gearbox Parts is made of high-temperature resistant alloy, maintaining stable braking performance even under continuous heavy braking conditions. Designed for Sinotruk Sitrak Gearbox Parts, this Brake Disc features a ventilated structure, which accelerates heat dissipation and avoids thermal deformation that impairs braking efficiency.
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Driven Clutch Disc Assembly

The Driven Clutch Disc Assembly of Sinotruk Sitrak Gearbox Parts is made of wear-resistant friction linings and a high-strength steel core, ensuring reliable power transmission between the engine and gearbox. This Driven Clutch Disc Assembly, a vital part of Sinotruk Sitrak Gearbox Parts, is equipped with multi-stage damping springs, which reduce impact during gear shifting and protect the transmission system.
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Connecting The Transmission Dial

The Connecting The Transmission Dial of Sinotruk Sitrak Gearbox Parts is machined via CNC technology, ensuring high precision in linking the shift lever and gearbox to avoid gear selection errors. This Connecting The Transmission Dial, a key linkage part of Sinotruk Sitrak Gearbox Parts, has a simple installation structure, allowing quick replacement during maintenance and reducing vehicle downtime.
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Hydraulic Clutch Oil Pipe

The Hydraulic Clutch Oil Pipe of Sinotruk Sitrak Gearbox Parts uses high-pressure resistant rubber with a reinforced metal outer layer, effectively preventing oil leakage during hydraulic pressure transmission. This Hydraulic Clutch Oil Pipe, an essential fluid-conducting part of Sinotruk Sitrak Gearbox Parts, resists extreme temperatures (low/high), adapting to harsh working environments of commercial vehicles.
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Why Choose Our Sinotruk Sitrak Gearbox Parts?

Factory - Direct Prices

We skip middlemen to offer competitive factory - direct prices for our Sinotruk Sitrak Gearbox Parts, passing all cost savings directly to you. Whether you’re a repair shop, fleet operator, or individual, you get great value without sacrificing quality. Why Choose Our Sinotruk Sitrak Gearbox Parts? Because our factory - direct pricing cuts your maintenance costs while delivering genuine, reliable parts.

Customization Options

We provide flexible Customization Options for Sinotruk Sitrak Gearbox Parts to meet your unique needs, such as adapting to high - temperature or high - load environments. Our engineering team collaborates closely with you and responds quickly to deliver tailored solutions. Why Choose Our Sinotruk Sitrak Gearbox Parts? Because customization lets you get parts that fit your specific scenarios perfectly.

Quality Assurance

Our Sinotruk Sitrak Gearbox Parts adhere to international standards and Sinotruk’s original specs, with strict Quality Assurance. Every part undergoes rigorous testing—from raw material checks to final performance verification—for long - lasting durability. Why Choose Our Sinotruk Sitrak Gearbox Parts? Because our quality commitment ensures stable performance in heavy - duty working conditions.

Small Order Acceptance

We support customers of all sizes with Small Order Acceptance for Sinotruk Sitrak Gearbox Parts—no large minimum order quantities required. Whether you need one emergency part or a small batch, we process orders promptly to reduce your inventory pressure. Why Choose Our Sinotruk Sitrak Gearbox Parts? Because this policy offers flexibility and convenience for your diverse purchasing needs.

Application Models Of Sinotruk Sitrak Gearbox Parts

4X2 Sitrak Tractor Truck Parts Catalog
4X2 Sitrak Tractor Truck
8X4 Sitrak Heavy Duty Truck Parts Catalog
8X4 Sitrak Heavy Duty Dump Truck
6X4 Sitrak Tractor Truck Parts Catalog
6X4 Sitrak Tractor Truck
sinotruk-sitrak-6X4-dump-truck
Sinotruk Sitrak 6X4 Dump Truck
8X4 Sitrak Tractor Truck Parts Catalog
8X4 Sitrak Tractor Truck
Sinotruk Sitrak 8x4 Cement Mixer Truck
Sinotruk Sitrak 8x4 Cement Mixer Truck

Sinotruk Sitrak series gearbox configurations are highly aligned with vehicle application scenarios, ensuring targeted performance.

  • For tractor trucks, the 4X2 model—designed for light-to-medium highway haulage—mainly adopts 12-speed manual or 16-speed AMT gearboxes with 3.08–3.73 rear axle ratios, prioritizing fuel efficiency and smooth shifting for long-distance operations.
  • The 6X4 and 8X4 tractors, oriented toward heavy-duty cargo transport (e.g., container or bulk goods), are equipped with 16-speed heavy-duty AMT or 12-speed manual gearboxes capable of handling high torque (up to 2500 N·m), paired with 3.41–4.11 speed ratios to balance power and highway speed.
  • For dump trucks, the 6X4 and 8X4 heavy-duty models (suited for construction sites or off-road haulage) use reinforced 12-speed manual or 16-speed AMT gearboxes with 5.26–6.72 speed ratios, emphasizing low-speed torque and anti-impact performance; the 8X4 cement mixer truck, focused on continuous mixing and steady power output, is equipped with 16-speed AMT gearboxes with dedicated PTO (power take-off) compatibility, ensuring stable power supply for the mixing drum.​

Sitrak gearbox parts balance commonality and scenario-specific optimization across models.

  • Universal components like high-wear-resistance synchronizer rings, sealed oil seals, and hydraulic clutch control systems are shared across most models, reducing maintenance costs and improving part interchangeability. Meanwhile, specialized parts target unique demands: 8X4 heavy-duty dump trucks and cement mixers use reinforced input/output shafts and thickened gearbox housings to withstand heavy loads and frequent start-stops; tractors (especially 6X4/8X4 variants) feature AMT intelligent shift modules with economy/power modes, adapting to different highway load conditions.
  • Additionally, dump trucks and cement mixers are equipped with enhanced lubrication systems to prevent gear overheating in dusty, vibrating construction environments, while tractors prioritize low-noise gear designs for driver comfort during long hauls. This modular part design ensures each Sitrak model delivers reliable performance in its specific application scenario.

Didn'T Find Your Truck Model?

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provide you with the best service.

Custom Truck Parts And Packaging Design

Display your products in exceptional custom parts packaging boxes. Have a unique box idea? Our custom packaging experts
will guide you every step of the way to find your custom parts packaging box.

TYPE OF TRANSPORTATION

As the most professional supplier of truck parts in China, We offer three common shipping methods:
air freight, sea freight, and truck transportation.

Truck Transport

Air Freight

Sea Freight

QUESTIONS AND ANSWERS

Frequently Asked Questions

  • 1. Normally, we packing Sinotruk Sitrak Gearbox parts with wooden cases and cartons. If you have special requirements, please mention that in advance.
    2. If you have legally registered patent, we can pack Sinotruk Sitrak Gearbox parts in your branded boxes after getting your authorization letters.

Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Generally, Sinotruk Sitrak Gearbox parts will take 15 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

ONLINE MESSAGE

If you have any questions, please feel free to leave us a message. We will respond within 12 hours! Become our customer and we will provide you with catalog services for free.