The Input shaft assemby & end cover composite member is a precision-engineered assembly that transfers engine torque into the transmission while sealing the front bearing housing. This composite member integrates the input shaft, gears, bearings, end covers, seals, and adjustment shims into a single, factory-matched unit for the HOWO A7 8X4 heavy truck. The Input shaft assemby & end cover composite member ensures reliable power entry, accurate bearing preload, and leak‑free operation under the most demanding driving conditions.
At howo Parts, we supply a complete Input shaft assemby & end cover composite member that includes all essential subcomponents: End plate and guide ring assembly, End plate assembly, Oilseal, Oilring, End plate gasket, Stop ring, Input bearing adjust shim, Adjust shim, Hex bolt, Spring washer, Gear assembly, Input shaft assembly, Input shaft, Shealth, Axle gear, Clamp, Sleeve, Roller bearing, and Retainer. Every part of this Input shaft assemby & end cover composite member is manufactured to original specifications for a seamless fit and long service life.
This composite member simplifies overhaul by providing a matched set of components that eliminate guesswork during reassembly. With correct installation, the Input shaft assemby & end cover composite member delivers smooth power transfer, minimal end‑play, and superior durability. Regular inspection of seals and bearings will help maintain the performance of your Input shaft assemby & end cover composite member for millions of kilometres.
The End plate and guide ring assembly forms the front closure of the transmission, housing the input shaft bearing and directing oil flow. This unit is a critical part of the Input shaft assemby & end cover composite member.
The End plate assembly is the main cover that seals the front of the transmission, providing a mounting face for the oil seal and guide ring. It is precision-machined to ensure concentricity with the input shaft.
The Oilseal (skeleton seal) prevents lubricant leakage from the front bearing housing while keeping contaminants out. It is a vital sealing component of the Input shaft assemby & end cover composite member.
The Oilring is a guide ring that directs oil onto the input shaft bearing for proper lubrication. It ensures that the bearing receives adequate oil flow at all speeds.
The End plate gasket seals the interface between the end plate and the transmission housing, preventing oil seepage. It is a consumable that should be replaced during every overhaul of the Input shaft assemby & end cover composite member.
The Stop ring is a heavy-duty retaining ring that limits axial movement of the input shaft bearing, maintaining correct bearing position within the composite member.
This shim set allows precise adjustment of input shaft bearing preload. Correct preload is essential for the longevity of the Input shaft assemby & end cover composite member.
The Adjust shim is a thin washer used to fine-tune axial clearance. Multiple thicknesses are available to achieve the desired end‑play in the composite member.
The Hex bolt secures the end plate to the transmission housing. It provides reliable clamping force and is easily removed for service.
The Spring washer prevents bolt loosening under vibration, maintaining joint integrity in the Input shaft assemby & end cover composite member.
The Gear assembly comprises the input shaft and the first‑speed gear, which together transfer torque from the clutch into the transmission. This is the core power‑transmitting element of the composite member.
The Input shaft assembly includes the input shaft, bearing, and related components. It is the primary rotating member that receives engine power.
The Input shaft is the main splined shaft that connects to the clutch disc. It is forged from high‑strength steel and hardened for torsional resistance.
Shealth is a bushing or sleeve that supports the input shaft within the housing, reducing friction and wear.
Axle gear (first‑speed gear) is integral to the input shaft, providing the initial gear reduction. It is precision‑cut for quiet operation and durability.
Clamp (retaining ring) secures the gear on the shaft, preventing axial movement. It is a key locking element in the composite member.
Sleeve is a spacer that maintains correct component spacing and protects the shaft surface from wear.
Roller bearing (6213N) supports the input shaft with low friction, handling high radial loads. It is a critical rotating element of the Input shaft assemby & end cover composite member.
Retainer is a snap ring that secures the bearing in its housing, preventing axial displacement. Different sizes are available for precise fit.
| Part NO. | Description |
|---|---|
| A/Z2203020108 | End plate and guide ring assembly |
| WG2203020002 | End plate assembly |
| WG2003070055 | Oilseal |
| WG2229020007 | Oilring |
| WG2229020015 | End plate gasket |
| WG2003090120 | Stop ring |
| A/Z2208020002 | Input bearing adjust shim |
| WG2229020011 | Adjust shim |
| WG2229020012 | Adjust shim |
| WG2229020013 | Adjust shim |
| Q150B1030 | Hex bolt |
| Q40310 | Spring washer |
| A/Z2203020013 | Gear assembly |
| A/Z2203020103 | Input shaft assembly |
| WG2210020105 | Input shaft |
| WG2229020005 | Shealth |
| WG2210020222 | Axle gear |
| WG2229040003 | Clamp |
| WG2229040103 | Sleeve |
| WG2003326213 | Roller bearing |
| A/Z2208020001 | Clamp |
| WG2003991065 | Retainer |
| WG2003992065 | Retainer |
| WG2003993065 | Retainer |
| WG2003994065 | Retainer |
| WG2003995065 | Retainer |
Our Input shaft assemby & end cover composite member is manufactured to the exact specifications of the original equipment, ensuring a perfect fit and consistent performance. Each component is dimensionally verified to guarantee seamless integration.
The Oilseal and Oilring are designed to provide optimum sealing and oil distribution, reducing wear and extending the life of the Input shaft assemby & end cover composite member.
We supply a full set of Adjust shims and Retainers, allowing precise end‑play adjustment during installation. This eliminates the need for additional sourcing and simplifies your rebuild.
Our inventory is stocked to meet urgent demands, with technical support available to assist with installation. Trust our Input shaft assemby & end cover composite member for reliable operation worldwide.
The Input shaft assemby & end cover composite member is the first stage of power transmission within the gearbox. Any wear or misalignment in this composite member can cause vibration, oil leaks, and premature bearing failure. Regular inspection of the Oilseal and Roller bearing is essential to maintain the health of your transmission.
The Input shaft assemby & end cover composite member operates under high torque and temperature. The Roller bearing and Oilring are designed to dissipate heat and maintain lubrication, ensuring stable performance even during prolonged heavy hauling.
When installing the Input shaft assemby & end cover composite member, always use new gaskets and O‑rings. Torque the Hex bolts to the specified values, and select the correct Adjust shim thickness to achieve the recommended bearing preload.
We recommend inspecting the Input shaft assemby & end cover composite member every 100,000 km. Check the Oilseal for leaks, the Roller bearing for roughness, and the Retainers for security. Replace any worn parts promptly.
This composite member is specifically designed for the HOWO A7 8X4 transmission, fitting all variants with standard input shaft dimensions. All part numbers match the original factory catalogue.
Each component of the Input shaft assemby & end cover composite member is inspected for hardness, dimensional accuracy, and surface finish. We stand behind our product with a comprehensive warranty.
We maintain a large stock of all parts, allowing same‑day dispatch. Custom shim kits and bulk orders are available for fleet customers.
Choosing our Input shaft assemby & end cover composite member reduces downtime and repair costs. The durable construction of each component ensures extended service intervals and lower total cost of ownership.
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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