

The Sinotruk Howo 7 Axle Gearing represents the pinnacle of engineering excellence in heavy-duty truck components. As a critical component in the powertrain system, this axle gearing ensures optimal power transmission and durability under the most demanding conditions. When it comes to reliable Sinotruk Howo parts, this axle gearing system stands out for its precision engineering and robust construction. Designed specifically for the Sinotruk Howo 7 series, this component delivers exceptional performance and longevity, making it the preferred choice for fleet operators and individual truck owners worldwide.
The Sinotruk Howo 7 Axle Gearing is a sophisticated power transmission system specifically engineered for the Howo 7 series heavy-duty trucks. This critical component serves as the backbone of the vehicle’s drivetrain, responsible for transferring engine power to the wheels while maintaining optimal torque distribution. The Sinotruk Howo 7 Axle Gearing system incorporates advanced engineering principles to ensure smooth power delivery and exceptional durability under heavy load conditions.
This precision-engineered assembly features a robust differential case, high-strength cross shafts, and durable planetary gears that work in harmony to provide reliable performance. The Sinotruk Howo 7 Axle Gearing is designed to withstand the rigorous demands of commercial transportation, offering superior load-bearing capacity and extended service life. Its innovative design minimizes power loss while maximizing efficiency.
The component integrates multiple specialized parts including tapered roller bearings, adjusting nuts, and precision gaskets that ensure optimal alignment and minimal friction. Each element within the Sinotruk Howo 7 Axle Gearing system is manufactured to exacting standards using high-grade materials that resist wear and tear. The system’s construction allows for efficient heat dissipation and reliable operation even in extreme temperature conditions.
Compatibility with the Sinotruk Howo 7 chassis makes this axle gearing system an ideal replacement part that maintains original equipment performance standards. The design incorporates safety features and maintenance-friendly aspects that reduce downtime and operational costs. Regular maintenance of the Sinotruk Howo 7 Axle Gearing ensures consistent performance and prevents unexpected failures during operation.
| Number | Material Encoding | Name | Quantity |
|---|---|---|---|
| 1 | AZ7121320120 | Main reducer housing assembly (Intermediate axle) | 1 |
| 2 | AZ5231320272 | Differential case | 1 |
| 3 | AZ9231302150 | Cross shaft | 1 |
| 4 | WG9231320151 | Shaft gear | 2 |
| 6 | AZ9231320152 | Differential planetary gear | 4 |
| 8 | WG9231320153 | Planetary gear gasket | 4 |
| 7 | WG9231320154 | Adjusting gasket | 1 |
| 7 | WG9231320155 | Planetary gasket | 1 |
| 7 | WG9231320156 | Adjusting gasket | 1 |
| 7 | WG9231320157 | Adjusting gasket | 1 |
| 8 | WG9231320158 | Batch loading | 1 |
| 9 | WG9231320160 | Batching snap ring | 4 |
| 10 | AZ9114320251 | Bevel gear pair 28 / 17 | 1 |
| 11 | ZD151615557E2 | Hexagon head bolt M10’1.5’35 | 18 |
| 12 | AZ9114320051 | Shot plate | 1 |
| 13 | AZ9231320169 | Hexagon head bolt | 8 |
| 14 | WG900323216 | Tapered roller bearing S2210 | 2 |
| 15 | T3509320159 | Differential bearing adjusting nut | 2 |
| 16 | T300032007 | Holding gasket | 2 |
| 17 | ZD15060516 | Hexagon head bolt M8 | 2 |
| 18 | AZ9231320299 | Bridge box | 1 |
| 20 | AZ9231320260 | Bridge box cover | 1 |
| 21 | W0003962975 | Bowl-shaped plug | 1 |
| 21 | W0004330175 | End cover | 1 |
| 22 | AZ9114320178 | Oil receiving plate assembly | 1 |
| 23 | T00003519528 | Double stud | 14 |
| 24 | U120122575 | Shot bolt | 4 |
| 25 | ZU120105255 | Double stud | 18 |
| 26 | ZD15061025 | Hexagon head bolt M10 | 8 |
| 27 | ZD15061020 | Hexagon head bolt M10 | 8 |
| 28 | Z0340812 | Hope hexagon nut | 18 |
| 29 | Z0340810 | Hexagon nut of type 1 M10’1.5 | 18 |
| 30 | Z0340810 | Hexagon nut of type 1 M10’1.5 | 18 |
| 31 | Q40312 | Spring washer | 18 |
| 32 | Q6311015 | Cylindrical pin | 4 |
| 33 | AZ77132000001 | Driving cylindrical gear (Z=28) | 1 |
| 34 | AZ712132000002 | Driver cylindrical gear (Z=28) | 1 |
| 35 | WG9014320257 | Roller bearing | 1 |
| 36 | WG9014320256 | Round wire snap ring | 1 |
| 37 | WG4065415515 | Tapered roller bearing S0211 | 2 |
| 38 | WG9000336312 | G312 radial ball bearing with snap ring groove | 2 |
| 39 | WG9000336019 | Deep groove ball bearing with dust cover 010 – Z | 1 |
| 40 | WG9014320174 | Grease baffle | 1 |
| 41 | WG9014320140 | Distance piece | 1 |
| 76 | 199014320076 | Differential lock swing arm assembly | 1 |
| 77 | 12700 320037 | Liner bushing | 1 |
| 78 | AZ9231320038 | O-ring seal | 1 |
| 79 | 1288 730062 | O-ring seal | 1 |
| 80 | 190009333072 | Elastic circlip for shaft | 1 |
| 81 | 190009902070 | Slotted long round column end fastening bolt — Screw GB75 M8*202N | 1 |
| 82 | Q340B08 | Hexagon nut type 1 | 1 |
| 83 | Q284B1045 | Hexagon socket flat-end set screw | 1 |
| 84 | WG69000330008 | Pin | 1 |
| 85 | Q43705 | Round wire snap ring for shaft | 1 |
| 86 | WG9231320262 | Bracket assembly | 1 |
| 87 | ZQ150B0818 | Hexagon head bolt M8 | 2 |
| 88 | Q40308 | Spring washer | 2 |
| 89 | Q40308 | Spring washer | 2 |
| 90 | WG61000060072 | Spacer bushing | 1 |
| 91 | Q401B08 | Flat washer | 1 |
| 92 | Q33208 | Type 2 all-metal hexagonal lock nut | 1 |
| 93 | WG9231320026 | Axle sealing ring | 1 |
| 94 | WG9231328772 | Axle sealing ring | 1 |
| 94 | 190007991779 | No.106 molybdenum disulfide (MO) | 7 |
Our Sinotruk Howo 7 Axle Gearing is manufactured with exceptional precision using advanced CNC machinery and strict quality control processes. Each component undergoes rigorous testing to ensure perfect dimensional accuracy and optimal performance. The precision engineering guarantees seamless integration with your Sinotruk Howo 7 vehicle, maintaining original equipment specifications and performance standards. This attention to detail results in smoother operation, reduced vibration, and extended component life.
Built to withstand the most demanding operating conditions, our Sinotruk Howo 7 Axle Gearing features premium materials and heat treatment processes that enhance strength and wear resistance. The robust construction ensures reliable performance under heavy loads and extreme temperatures. Critical components like the differential case and planetary gears are engineered for maximum durability, reducing the risk of premature failure and minimizing maintenance requirements. This reliability translates to reduced downtime and increased operational efficiency.
The Sinotruk Howo 7 Axle Gearing is designed to optimize power transmission efficiency and vehicle performance. Advanced gear tooth profiles and precision bearings minimize friction and power loss, resulting in improved fuel economy and enhanced driving dynamics. The optimized design ensures balanced torque distribution across all wheels, providing superior traction and stability in various road conditions. This performance optimization contributes to overall vehicle efficiency and reduced operating costs over the long term.
Every Sinotruk Howo 7 Axle Gearing undergoes comprehensive quality assurance testing before leaving our facility. Our multi-stage inspection process includes material certification, dimensional verification, and functional testing to ensure compliance with original equipment standards. We maintain detailed quality records and provide certification documentation with each unit. This commitment to quality assurance gives you confidence in the performance and longevity of your investment, backed by our reputation for excellence in heavy-duty truck components.
Specifically designed for Sinotruk Howo 7 series heavy-duty trucks, suitable for various transportation applications including logistics, construction, and mining operations.
Professional installation recommended to ensure optimal performance and warranty compliance. Compatible with standard Sinotruk Howo 7 axle assemblies.
Comprehensive warranty coverage provided with all Sinotruk Howo 7 Axle Gearing units, ensuring peace of mind and protection for your investment.
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.