The part is the cornerstone of the Sitrak C7H engine, converting the linear motion of the pistons into the rotational force that drives the vehicle[reference:0]. This precision-engineered assembly is designed to withstand extreme torsional loads and high temperatures, ensuring reliable power delivery over millions of kilometers.
This complete Crankshaft kit includes The part, Main Bearings, Thrust Washers, Crankshaft Front Gear, Crankshaft Rear Gear, Pin, Damper Hub, Hexagon Socket Head Cap Screws, Hexagon Flange Bolts, Vibration Damper, and Flat Seal. Every component of this Crankshaft assembly is engineered to OEM specifications for a perfect fit and reliable performance.
The part is forged from high-strength micro-alloyed steel with induction-hardened journals and fillet-rolled radii for exceptional fatigue resistance. Its precision-balanced design minimizes vibration and ensures smooth operation at all engine speeds. The included main bearings and thrust washers provide critical support and axial positioning, while the front and rear gears synchronize The part with the camshaft and auxiliary drives[reference:1].
For complete technical specifications and ordering details, please refer to the official Sinotruk Catalog, which provides comprehensive information on all available variants and compatible truck models for The part.
Whether you are performing a complete engine rebuild or replacing a worn crankshaft, this Crankshaft kit delivers factory-quality components and a straightforward installation. This Crankshaft is the definitive choice for operators who demand reliable engine performance and long-term durability.
The part is a critical investment in the longevity of your Sitrak C7H. Its robust construction and precise engineering ensure that your engine continues to deliver maximum power and efficiency, mile after mile. Choosing this genuine Crankshaft means protecting your investment and ensuring your truck remains on the road, earning for years to come[reference:2].
The central component of this Crankshaft kit, forged from high-strength micro-alloyed steel with induction-hardened bearing journals. Its precision-balanced design and fillet-rolled radii provide exceptional fatigue resistance, ensuring reliable power delivery over millions of kilometers[reference:3].
These precision-machined bearings provide low-friction support for The part journals. Manufactured from steel-backed aluminum alloy, they ensure a consistent oil film and reduce wear, extending the life of The part and engine[reference:4].
These washers control the axial movement of The part, maintaining correct positioning within the engine block. Made from hardened steel with a wear-resistant coating, they ensure smooth operation and reduce wear on the engine components[reference:5].
This precision gear synchronizes The part with the timing and auxiliary drive systems. Made from hardened steel with precision-cut teeth, it ensures accurate timing and efficient power transfer[reference:6].
This rear gear drives the camshaft and other auxiliary components. In The part assembly, it is identical in construction to the front gear, ensuring consistent timing and load distribution across the entire drive system[reference:7].
This precision pin secures the timing gears to The part. Made from hardened steel with a ground surface, it ensures positive alignment and prevents rotation of the gears during operation[reference:8].
This component provides a mounting point for the vibration damper and drives the accessory belt. In The part assembly, it is precision-machined from high-strength steel and balanced to minimize vibration[reference:9].
These high-strength screws secure the vibration damper to the hub. Grade 10.9 with a fine-pitch thread, they provide reliable clamping force and corrosion resistance in The part assembly[reference:10].
These M10 flange bolts secure the front gear and other components to The part. Grade 10.9 with a zinc-nickel coating, they provide exceptional clamping force and vibration resistance[reference:11].
This elastomer-based damper absorbs torsional vibrations from The part, protecting the engine from harmonic stress. In The part assembly, it ensures smooth operation and extends the life of internal components[reference:12].
This high-performance sealant is applied to The part mating surfaces to prevent oil leaks. In The part assembly, it provides excellent adhesion and sealing capabilities, protecting against contaminant ingress[reference:13].
The part is forged from premium micro-alloyed steel with induction-hardened journals and fillet-rolled radii, providing exceptional resistance to torsional fatigue and ensuring reliable performance over millions of kilometers[reference:14].
This Crankshaft kit includes everything required for a full installation – The part, bearings, thrust washers, timing gears, damper hub, vibration damper, fasteners, and sealant. The all-in-one solution simplifies rebuilding and ensures compatibility[reference:15].
The part is dynamically balanced to exacting tolerances, minimizing vibration and ensuring smooth operation at all engine speeds. The included vibration damper further reduces harmonic stress, protecting the engine from premature wear[reference:16].
The part is manufactured to the exact OEM specifications, guaranteeing a perfect fit on the Sitrak C7H. The precision-ground journals and correctly positioned timing marks ensure a hassle-free installation, reducing the risk of assembly errors[reference:17].
Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.
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