The Three part forged rear-bridge house is a critical structural component of the HOWO A7 8X4 heavy truck’s rear axle system. This forged housing is manufactured in three sections – left, centre, and right – which are precision‑machined and assembled to form a robust, lightweight, and durable axle casing. The Three part forged rear-bridge house provides the foundation for the differential, axle shafts, and wheel hubs, ensuring reliable power transmission and load carrying capability under the most demanding operating conditions. This advanced design offers excellent strength‑to‑weight ratio and simplified serviceability compared to traditional one‑piece castings.
At howo Parts, we supply a complete Three part forged rear-bridge house assembly that includes all necessary subcomponents: Three part forged rear-bridge mid part, Push axle head, Hex bolt, Tube, Pin, Retainer, Double head bolt, Shell, Flat washer, and 2 type full metal Hex locking nut. Each element of this Three part forged rear-bridge house is manufactured to the highest quality standards, using premium materials and advanced forging processes. The Three part forged rear-bridge house is designed to withstand the extreme loads and harsh environments encountered in construction, mining, and long‑haul transport.
This Three part forged rear-bridge house simplifies maintenance by allowing individual sections to be replaced without disturbing the entire axle. With correct installation and regular inspection, the Three part forged rear-bridge house delivers exceptional durability, reduces unsprung weight, and extends the service life of the drivetrain. Trust our Three part forged rear-bridge house to keep your HOWO A7 8X4 performing reliably for millions of kilometres.
The Three part forged rear-bridge mid part is the central section of the axle housing, housing the differential and ring gear. It is forged from high‑strength alloy steel and precision‑machined to ensure accurate bearing and gear alignment.
Push axle head is the outer end fitting that connects the axle tube to the wheel hub assembly. It is designed for a press‑fit installation, providing a secure and concentric interface for the wheel bearings and seals.
Hex bolt is a high‑strength fastener used to secure the housing sections and mounting brackets. Its hexagonal head allows for precise torque application with standard tools.
Tube is a hollow steel pipe that forms the axle arms, connecting the centre section to the wheel ends. It provides the structural backbone and carries the axle shafts.
Pin is a cylindrical dowel used for locating and aligning the housing sections during assembly. It ensures accurate positioning of the mating faces.
Retainer is a snap ring or wire ring that secures bearings or other components in their axial positions, preventing unwanted movement.
Double head bolt is a stud with threads on both ends, used to clamp the housing sections together. It provides uniform clamping force across the joint.
Shell is a bushing or bearing sleeve that supports rotating shafts within the axle housing, reducing friction and wear.
Flat washer distributes the load under the bolt head or nut, preventing surface damage and ensuring even clamping pressure.
This is a prevailing‑torque locking nut made entirely of metal. Its all‑metal design provides reliable locking action under extreme vibration and temperature, without the use of nylon inserts.
| Part NO. | Description |
|---|---|
| AZ9231330948 | Three part forged rear-bridge mid part |
| AZ9231330940 | Three part forged rear-bridge mid part |
| V69213318001 | Push axle head |
| V69213318001/1 | Push axle head |
| V69213318009 | Push axle head |
| V69213318009/1 | Push axle head |
| Q151B1635 | Hex bolt |
| V69213318015 | Tube |
| V69213318015/1 | Tube |
| V692134133015 | Tube |
| V692134133015/1 | Tube |
| Q43705 | Retainer |
| Q1208050F3 | Double head bolt |
| V69210006008 | Shell |
| V69210006008/1 | Shell |
| Q40108 | Flat washer |
| Q33208 | 2 type full metal Hex locking nut |
| AZ923134093 | Hex bolt |
| Q151B2045T1F2 | Hex bolt |
Our Three part forged rear-bridge house is produced using advanced forging technology that eliminates porosity and ensures a dense, homogeneous grain structure. This results in exceptional strength and impact resistance, far exceeding that of cast alternatives.
Every mating surface, bearing bore, and threaded hole in our Three part forged rear-bridge house is CNC‑machined to tight tolerances, guaranteeing perfect alignment and easy assembly with original components.
The three‑section design of our Three part forged rear-bridge house allows individual sections to be replaced without removing the entire axle, reducing downtime and repair costs significantly.
We maintain a comprehensive inventory of Three part forged rear-bridge house components, enabling rapid dispatch worldwide. Our technical team provides expert guidance on installation and maintenance.
The Three part forged rear-bridge house is the load‑bearing backbone of the rear axle, supporting the vehicle’s weight and transmitting driving and braking forces to the wheels. Any structural weakness in this Three part forged rear-bridge house can lead to misalignment, premature bearing wear, and even catastrophic failure. Using a high‑quality forged housing ensures that your HOWO A7 8X4 maintains its stability and performance under the most severe conditions.
The Three part forged rear-bridge house is designed to withstand the thermal cycling and fatigue stresses of heavy haulage. The forged material offers superior resistance to crack propagation, while the modular design allows for effective heat dissipation from the differential area, extending lubricant life.
When assembling the Three part forged rear-bridge house, always use new sealing washers and apply thread‑locking compound to the Double head bolts. Torque all fasteners to the values specified in the service manual to ensure correct clamping and prevent leakage.
We recommend inspecting the Three part forged rear-bridge house every 50,000 km. Check for signs of oil leakage, loose fasteners, or cracks in the housing. Replace any damaged components promptly to avoid more extensive repairs.
Our Three part forged rear-bridge house is specifically dimensioned for the HOWO A7 8X4 chassis, fitting all variants with the standard rear axle configuration. The mounting points, axle tube diameters, and differential housing interfaces are identical to the original design.
Each Three part forged rear-bridge house undergoes rigorous non‑destructive testing, including magnetic particle and ultrasonic inspection, to guarantee freedom from defects. We offer a comprehensive warranty covering material and workmanship.
We stock a full range of Three part forged rear-bridge house components, allowing immediate dispatch for most orders. Custom kits, including fasteners and seals, are available for fleet maintenance programs.
Choosing our Three part forged rear-bridge house reduces the total cost of ownership by minimising unscheduled downtime and extending the interval between major overhauls. The robust construction and precision fitment ensure that your HOWO A7 8X4 remains productive for years.
Aftermarket rear housings often use inferior materials or have inaccurate machining, leading to misalignment and premature wear. Our Three part forged rear-bridge house is engineered to the exact OEM specifications, providing peace of mind and reliable performance.
The forged three‑piece construction of our Three part forged rear-bridge house allows for thinner wall sections without sacrificing strength, reducing unsprung weight and contributing to improved fuel efficiency and ride comfort.
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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