The Rear Axle Assembly with a Differential Lock is a high-strength final drive carrier that houses the differential and pinion gears, providing a rigid mounting platform for the entire rear axle drive system. This comprehensive kit includes the main housing, bearing covers, and all necessary fasteners for a complete installation on the Sitrak C7H. 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 Rear Axle Assembly with a Differential Lock.
The Rear Axle Assembly with a Differential Lock is manufactured from high-strength cast iron with precision-machined bearing bores and mounting surfaces. Its robust design ensures accurate alignment of the differential bearings and gears, providing smooth operation and long service life. This Rear Axle Assembly with a Differential Lock is essential for maintaining the structural integrity of the rear axle drive unit.
The Rear Axle Assembly with a Differential Lock includes an integrated differential lock mechanism, providing enhanced traction when needed. The bearing covers are precisely matched to the housing, ensuring correct bearing preload and optimal gear meshing. This Rear Axle Assembly with a Differential Lock is designed to withstand the high torque loads of heavy-duty trucking, delivering reliable performance over millions of kilometers.
Whether you are rebuilding a worn axle or upgrading to a higher-capacity unit, this Rear Axle Assembly with a Differential Lock kit delivers factory-quality components and a straightforward installation. The precision-engineered housing and matched bearing covers guarantee a perfect fit, reducing assembly time and ensuring long-term reliability. This Rear Axle Assembly with a Differential Lock is the definitive choice for operators who demand superior traction and driveline durability.
This is the main structural housing of the Rear Axle Assembly with a Differential Lock, a one-piece cast iron component that encloses the differential gears, pinion, and bearings. It features precision-machined bearing bores and threaded mounting holes for the bearing covers and other components. The housing includes an integrated differential lock mechanism, which can be activated to provide improved traction in slippery conditions. In the Rear Axle Assembly with a Differential Lock, this housing provides the rigid foundation that maintains proper gear alignment and ensures reliable power transmission. Its robust design and high-quality cast iron construction guarantee exceptional durability under the most demanding operating conditions.
The Left Bearing Cover is a precision-machined component that secures the differential bearing on the left side of the housing. In the Rear Axle Assembly with a Differential Lock, it is made of high-strength steel with a corrosion-resistant coating. The cover features accurately positioned bolt holes and a locating dowel pin to ensure correct alignment and even load distribution across the bearing. Its precise fitment maintains the required bearing preload, which is critical for the long-term reliability of the Rear Axle Assembly with a Differential Lock.
The Right Bearing Cover is the symmetric counterpart to the left cover, securing the differential bearing on the right side of the housing. In the Rear Axle Assembly with a Differential Lock, it is identical in construction and finish to the left cover, ensuring balanced support and alignment. Both bearing covers work together to maintain the correct bearing preload and shaft alignment, which are essential for smooth gear operation and extended bearing life. The covers are designed to be easily installed and removed, simplifying maintenance of the Rear Axle Assembly with a Differential Lock.
These high-strength hexagon head bolts are used to secure the bearing covers to the main housing. In the Rear Axle Assembly with a Differential Lock, they are manufactured from grade 10.9 alloy steel with a fine-pitch thread and a zinc-nickel coating for corrosion resistance. The bolts provide the necessary clamping force to hold the bearing covers firmly in place, preventing any movement that could affect bearing preload or gear alignment. Their precise length and thread engagement ensure that the correct torque can be applied, which is essential for the long-term reliability of the Rear Axle Assembly with a Differential Lock.
These precision-ground dowel pins are used to accurately locate the bearing covers to the main housing. In the Rear Axle Assembly with a Differential Lock, they are made of hardened steel with a close-tolerance fit that ensures precise alignment of the covers with the housing’s bearing bores. The dowel pins prevent lateral movement of the covers during installation and operation, maintaining the correct bearing preload and gear mesh. Their use eliminates the need for trial-and-error alignment, simplifying assembly and ensuring consistent quality in the Rear Axle Assembly with a Differential Lock.
The Rear Axle Assembly with a Differential Lock is manufactured from high-strength cast iron, providing exceptional rigidity and durability. Its robust design withstands the high torque loads and vibrations of the driveline, ensuring reliable performance over the life of the vehicle.
This Rear Axle Assembly with a Differential Lock includes all necessary components – the housing, bearing covers, bolts, and dowel pins – for a full installation. No additional parts are required, saving time and ensuring compatibility.
The use of precision-machined bearing bores and locating dowel pins ensures that the bearing covers are perfectly aligned with the housing. This maintains the correct bearing preload and gear meshing, reducing wear and extending the service life of the Rear Axle Assembly with a Differential Lock.
The Rear Axle Assembly with a Differential Lock is manufactured to the exact OEM specifications, guaranteeing a perfect fit on the Sitrak C7H. The precision-ground surfaces and correctly sized fasteners ensure a hassle-free installation, reducing downtime and labor costs.
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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