- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com


The Sinotruk Howo A7 Input Shaft Assembly & End Cover Composite Member is a critical transmission component system specifically designed for the Sinotruk Howo A7 heavy-duty truck series. This comprehensive assembly integrates the input shaft mechanism with protective end cover components to create a complete power transmission interface solution. The Input Shaft Assembly & End Cover Composite Member serves as the primary connection point between the engine and transmission system, ensuring efficient power transfer while providing essential protection against contaminants and maintaining proper lubrication within the transmission housing.
Engineered with precision and durability in mind, this composite member incorporates high-quality input shaft components, precision bearings, sealing elements, and adjustment mechanisms that work together to optimize transmission performance. The input shaft itself is manufactured from high-strength alloy steel and undergoes specialized heat treatment processes to withstand the tremendous torque loads encountered in heavy-duty truck operations. The integrated end cover system provides crucial protection for the input shaft bearings while maintaining proper oil sealing to prevent lubricant leakage and contamination ingress.
The Input Shaft Assembly & End Cover Composite Member features advanced sealing technology including specialized oil seals and guide rings that ensure long-term reliability under demanding operating conditions. These sealing components work in conjunction with precision adjustment shims that allow for perfect bearing preload settings, ensuring optimal gear mesh alignment and minimizing power loss through the transmission system. The comprehensive design includes multiple retainer options that accommodate various installation requirements and ensure secure component positioning throughout the assembly’s service life.
As a complete transmission interface solution, the Sinotruk Howo A7 Input Shaft Assembly & End Cover Composite Member simplifies maintenance procedures and reduces vehicle downtime during repairs or overhauls. The integrated design ensures perfect compatibility between all components, eliminating installation errors and ensuring optimal performance from the moment of installation. This approach to component packaging reflects Sinotruk’s commitment to quality and customer convenience, providing truck operators with reliable solutions that maintain the original performance standards of the Howo A7 transmission system while enhancing serviceability and operational reliability.
| NO. | Part NO. | Description |
|---|---|---|
| 1 | AZ2203020108 | End plate and guide ring assembly |
| 1.1 | WC2203020002 | End plate assembly |
| 1.2 | WC9003070055 | Oil seal |
| 1.3 | WC2229020007 | Oil ring |
| 2 | WC2229020015 | End plate gasket |
| 3 | WC9003990120 | Stop ring |
| 4 | AZ2208020002 | Input bearing adjust shim |
| 4.1 | WC2229020011 | Adjust shim |
| 4.2 | WC2229020012 | Adjust shim |
| 4.3 | WC2229020013 | Adjust shim |
| 5 | Q150B1030 | Hex bolt |
| 6 | Q40310 | Spring washer |
| 7 | AZ2203020013 | Gear assembly |
| 7.1 | AZ2203020103 | Input shaft assembly |
| 7.1.1 | WC2210020165 | Input shaft |
| 7.1.2 | WC2229020069 | Shealth |
| 7.2 | WC2210020222 | Ack gear |
| 7.3 | WC2229040003 | Clamp |
| 7.4 | WC2229040103 | Sleeve |
| 7.5 | WC9003326213 | Roller bearing |
| 7.6 | AZ2208020011 | Clamp |
| 7.6.1 | WC9003991065 | Retainer |
| 7.6.2 | WC9003992065 | Retainer |
| 7.6.3 | WC9003993065 | Retainer |
| 7.6.4 | WC9003994065 | Retainer |
| 7.6.5 | WC9003995065 | Retainer |
Our Sinotruk Howo A7 Input Shaft Assembly & End Cover Composite Member is manufactured using premium materials and advanced production techniques to ensure exceptional durability and performance under the most demanding operating conditions. Each component undergoes rigorous quality control checks to guarantee precise tolerances and perfect compatibility with your Howo A7 transmission system. We utilize high-strength alloy steels for critical components like the input shaft and specialized bearing materials that provide superior load capacity and extended service life. This commitment to quality ensures that our Input Shaft Assembly & End Cover Composite Member delivers reliable performance and maintains optimal transmission efficiency throughout its operational lifecycle.
We provide comprehensive technical support and detailed documentation to facilitate easy installation and maintenance procedures. Our Sinotruk Howo A7 Input Shaft Assembly & End Cover Composite Member comes with complete assembly instructions and compatibility verification to ensure straightforward installation and optimal performance. With extensive inventory and efficient logistics network, we guarantee prompt delivery to minimize your vehicle downtime. Our customer service team possesses specialized knowledge of Sinotruk transmission systems and can provide expert guidance for all your component replacement and maintenance needs.
Competitive pricing combined with uncompromising quality makes our Sinotruk Howo A7 Input Shaft Assembly & End Cover Composite Member an outstanding value proposition for fleet operators and repair facilities. We maintain strict quality standards that meet or exceed OEM specifications, ensuring reliable performance and longevity under extreme operating conditions. Our products are backed by comprehensive warranty coverage that protects against manufacturing defects, giving you confidence in your investment. We continuously refine our manufacturing processes to incorporate the latest advancements in transmission technology and material science.
Choosing our Sinotruk Howo A7 Input Shaft Assembly & End Cover Composite Member means selecting a partner dedicated to your operational success and vehicle reliability. We understand the critical role that transmission components play in heavy-duty trucking operations and strive to deliver products that exceed performance expectations. Our commitment to customer satisfaction extends beyond the initial purchase, with ongoing support and resources to help maintain your vehicles at peak performance levels. Trust our expertise and quality assurance for all your Sinotruk Howo A7 transmission component requirements and experience the difference that genuine quality makes in vehicle performance, operational efficiency, and total cost of ownership.
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If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.