The comprehensive range of Sinotruk Howo parts includes essential drivetrain components designed to ensure optimal vehicle performance and durability. Among these critical systems, the Sinotruk Howo 7 Three-Section Casting Rear Axle Housing (Qt) (1850, Disconnected) represents a precision-engineered structural component that provides robust support for the rear axle assembly in heavy-duty commercial vehicles. This meticulously designed housing system ensures reliable power transmission and load-bearing capacity, contributing significantly to the overall performance and operational reliability of Sinotruk Howo 7 series trucks in demanding transportation conditions.
Sinotruk Howo 7 Three-Section Casting Rear Axle Housing (Qt) (1850, Disconnected)
The Sinotruk Howo 7 Three-Section Casting Rear Axle Housing (Qt) (1850, Disconnected) features an innovative three-section construction that provides exceptional structural integrity and load distribution. This segmented design allows for optimal stress management throughout the housing assembly, reducing concentrated stress points that could lead to fatigue failure. The 1850mm track width specification ensures proper wheel positioning and stability, while the disconnected configuration provides flexibility for various suspension setups and vehicle configurations in heavy-duty applications.
Manufactured using high-quality QT (Ductile Iron) material through precision casting processes, this rear axle housing delivers exceptional strength-to-weight ratio and durability. The casting process ensures consistent material density and optimal grain structure throughout the housing components, providing reliable performance under extreme load conditions. The QT material specification offers superior impact resistance and fatigue strength compared to conventional cast iron, making it ideal for the demanding requirements of commercial vehicle operations.
This rear axle housing assembly features a comprehensive integrated mounting system that includes air chamber brackets, thrust rod holders, and various connection points for suspension components. The design incorporates precisely positioned mounting surfaces and threaded connections that ensure proper alignment and secure attachment of all associated components. The integrated approach simplifies assembly, reduces the need for additional adapters or modifications, and ensures reliable performance of the entire rear axle system under varying load conditions.
The housing assembly incorporates advanced lubrication management with a magnetic hexagon socket tapered screw plug that captures metallic particles from the lubricating oil, extending component life. The ventilation system includes a specialized ventilation plug and rubber hose that maintain proper pressure equilibrium within the axle housing, preventing oil leaks and ensuring efficient lubrication circulation. These features work together to maintain optimal operating conditions for the differential and axle components, reducing wear and extending service intervals.
| Number | Material Encoding | Name | Quantity |
|---|---|---|---|
| 1 | AZ7121331948 | Axle housing assembly | 1 |
| 2 | Q5211016 | Cylindrical pin | 1 |
| 3 | 181500010163 | Screw plug | 1 |
| 4 | WG9981330024 | Magnetic hexagon socket tapered screw plug assembly M24x1.5 DIN158 | 1 |
| 5 | Q72336 | Sealing washer — Q72336 aluminum L1M, GB3190 | 1 |
| 6 | 190004E+11 | Bowl-shaped plug | 1 |
| 7 | AZ9231330105 | Ventilation plug | 1 |
| 8 | AZ9231330106 | Rubber hose | 1 |
| 9 | Q151C12301F2 | Hexagon head bolt | 8 |
| 10 | Q40312 | Spring washer | 12 |
| 11 | AZ9003810012 | Double-end stud AM12/#1.5/#32 | 4 |
| 12 | WG9000310012 | Lock washer | 4 |
| 13 | ZQ341C12114F2 | Hexagon nut of type 1 M12*1.5 | 4 |
| 14 | 190003810631S | Double stud | 4 |
| 15 | 190003888457 | Self-locking nut | 4 |
| 16 | AZ710032900001 | Name board | 1 |
| 17 | 190003904529 | Sign rivet – rivet GB827-86-2.5/#6 | 2 |
| 18 | 199014330125 | Control lever assembly | 1 |
| 19 | 1680M 320015 | Gasket | 1 |
| 20 | AZ9231330808 | Pin | 1 |
| 20 | AZ9231330809 | Pin | 1 |
| 20 | 199112330016 | Pin | 1 |
| 21 | Q43705 | Round wire snap ring for shaft | 1 |
| 22 | Q1200850F3 | Double stud | 1 |
| 23 | WG61000060084 | Spacer bushing | 1 |
| 24 | Q401B08 | Flat washer | 1 |
| 25 | Q33208 | Type 2 all-metal hexagonal lock nut | 1 |
| 26 | AZ7121340043 | Air chamber bracket | 1 |
| 27 | ZQ1811640TF6 | Hexagon toothed bolt with flange | 4 |
| 28 | AZ7129340043 | Rear axle thrust rod holder | 1 |
| 29 | ZQ151B2045TF2 | Hexagon head bolt M20*1.5*45 | 6 |
Our Sinotruk Howo 7 Three-Section Casting Rear Axle Housing (Qt) (1850, Disconnected) is manufactured using high-quality QT (Ductile Iron) material that provides exceptional strength, durability, and impact resistance. The QT material specification offers superior mechanical properties compared to conventional cast iron, including higher tensile strength, better fatigue resistance, and improved ductility. This premium material construction ensures reliable performance under extreme load conditions and extends the service life of the axle housing in demanding commercial vehicle applications.
We employ advanced manufacturing techniques and precision engineering to ensure optimal performance of our rear axle housing assembly. The three-section design is carefully engineered to distribute loads evenly throughout the structure, minimizing stress concentrations that could lead to fatigue failure. All mounting surfaces, threaded connections, and bearing journals are precision-machined to exact tolerances, ensuring perfect alignment and compatibility with associated components. This precision engineering guarantees reliable performance and extended service life in demanding operating conditions.
Every Sinotruk Howo 7 Three-Section Casting Rear Axle Housing (Qt) (1850, Disconnected) undergoes rigorous quality testing before shipment. Our quality assurance process includes material composition analysis, dimensional verification, magnetic particle inspection for surface defects, and pressure testing of all sealed compartments. We also conduct sample testing for load capacity and fatigue strength to verify performance under simulated operating conditions. This comprehensive approach guarantees that you receive a component that will perform reliably throughout its service life.
We provide the Sinotruk Howo 7 Three-Section Casting Rear Axle Housing (Qt) (1850, Disconnected) as a complete assembly with all necessary components for proper installation and operation. The kit includes the main housing assembly, all required fasteners, seals, ventilation components, and mounting brackets in the correct quantities. This comprehensive approach eliminates the need to source individual components separately and ensures that all parts are properly matched for optimal performance. The complete assembly solution simplifies the installation process, reduces vehicle downtime, and guarantees correct assembly according to manufacturer specifications.
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