AZ2203040210 Main Shaft Assembly for HOWO Truck Transmission
The AZ2203040210 Main Shaft Assembly represents the pinnacle of transmission engineering for heavy-duty HOWO trucks. As the central power transmission component in HOWO gearbox systems, this genuine OEM part delivers unparalleled torque transfer efficiency and operational reliability. Manufactured to exacting Sinotruk specifications, AZ2203040210 maintains the legendary durability expected from HOWO commercial vehicles while enhancing fuel economy through reduced rotational friction.
Performance Advantages
- Precision-balanced shaft assembly reduces vibration by 62% compared to aftermarket alternatives
- Case-hardened alloy steel construction withstands peak torque loads of 2,500 Nm
- Integrated helical gear design minimizes harmonic resonance during gear shifts
- Precision-ground bearing surfaces extend service intervals by 40,000 km
- Thermal-stable metallurgy maintains dimensional accuracy in extreme temperatures (-30¡ãC to 150¡ãC)
Compatibility & Application
The AZ2203040210 main shaft assembly is engineered for seamless integration with HOWO A7, HOWO TX, and HOWO T7 series trucks produced between 2018-2024. This critical transmission component supports various engine configurations including WD615, D12, and MC11 powertrains. Installation requires no modifications when replacing original equipment, with precise spline engagement ensuring correct power transfer across all gear ranges. The AZ2203040210 performs optimally in long-haul freight, construction, and mining operations where transmission durability is mission-critical.
Quality Assurance
Every AZ2203040210 assembly undergoes rigorous quality validation through 27-stage inspection protocols before receiving OEM certification. This includes coordinate-measuring machine verification of shaft concentricity within 0.005mm tolerance and magnetic particle inspection for subsurface flaws. Each unit ships with traceable manufacturing documentation and 12-month/100,000km warranty coverage. Genuine AZ2203040210 components feature laser-etched identification markings that confirm authenticity and prevent counterfeit installation risks.
Technical Specifications
Physical Dimensions
Total Length: 482.3mm
Shaft Diameter: 42.8mm
Spline Teeth: 28
Weight: 18.7kg
Material Composition
Core Shaft: 20CrMnTiH Alloy Steel
Gear Components: 8620H Carburized Steel
Bearings: GCr15 Bearing Steel
Performance Metrics
Max RPM: 6,800
Torque Capacity: 2,800Nm
Surface Hardness: 58-62 HRC
Runout Tolerance: ¡À0.008mm
Maintenance & Longevity
Proper lubrication is critical for maximizing the AZ2203040210 service life exceeding 500,000 km. Use only GL-5 grade 85W-90 gear oil meeting API classification standards. Regular oil analysis at 50,000 km intervals helps detect abnormal wear patterns early. Symptoms indicating AZ2203040210 replacement needs include gear whine above 60 km/h, vibration during acceleration, and metal particulates in transmission fluid. The AZ2203040210 design incorporates five lubrication channels that distribute oil evenly across all contact surfaces when maintained correctly.
When installing the AZ2203040210 assembly, always replace input shaft seals and pilot bearings simultaneously. Use dial indicators to verify input shaft runout below 0.15mm before final assembly. Proper preload adjustment prevents premature bearing failure that could compromise the AZ2203040210’s performance. Field tests demonstrate a 22% reduction in drivetrain power loss compared to previous generation HOWO main shafts when the AZ2203040210 is installed with factory-recommended procedures.
Genuine Parts Advantage
Counterfeit transmissions components cause an estimated 73% of premature gearbox failures in heavy trucks. Authentic AZ2203040210 assemblies feature proprietary surface treatments and manufacturing processes that cannot be replicated by aftermarket suppliers. Each genuine AZ2203040210 unit provides computerized fitment guarantee confirmation through Sinotruk’s parts verification system. Protect your HOWO investment with factory-certified AZ2203040210 components that deliver uncompromised performance and warranty coverage.
