AZ2210030032/7 Countershaft Gear for HOWO Truck Transmission



Precision-engineered for optimal performance, the AZ2210030032/7 countershaft second gear serves as a critical transmission component in heavy-duty HOWO trucks. Manufactured to exact OEM specifications, this gear ensures seamless power transfer between the countershaft and main shaft, delivering the torque reliability required for demanding commercial transportation operations. Unlike generic alternatives, this genuine HOWO-compatible component maintains the original equipment’s tolerance levels, noise reduction profiles, and load-bearing capacity.
Performance Advantages
When you choose the authentic AZ2210030032/7 countershaft gear, you invest in uninterrupted operational efficiency. The helical tooth design minimizes vibration and harmonic resonance that causes premature wear in transmission systems. Surface-hardened through advanced carburizing processes, the gear teeth withstand extreme pressure cycles while maintaining dimensional stability across temperature variations from -40¡ãC to 150¡ãC. This resilience directly translates to fewer breakdowns and extended maintenance intervals for fleet operators.
Compatibility & Installation
Designed as a direct replacement part, this countershaft second gear interfaces flawlessly with transmission models found in HOWO A7, HOWO T7, and HOWO T5G series trucks. The spline configuration matches original factory blueprints, eliminating the need for shimming or modifications during installation. Mechanics familiar with ZF and Fuller transmission architectures will find the replacement process straightforward when using proper gear pullers and hydraulic presses. For optimal performance, pair with genuine synchronizers and bearings from the AZ2210030032/7-compatible product ecosystem.
Key Specifications
- ? OEM Number: AZ2210030032/7
- ? Material: 20CrMnTiH alloy steel
- ? Tooth Profile: 25¡ã helix angle
- ? Hardness: 58-62 HRC surface
- ? Weight: 8.7 kg ¡À0.2% tolerance
- ? Dimensions: 214mm OD ¡Á 178mm ID
Operational Longevity
Field tests demonstrate that properly maintained AZ2210030032/7 gears consistently achieve 500,000+ kilometer service life in over-the-road applications. The shot-peened tooth roots prevent stress fractures that commonly develop at the dedendum of inferior components. Oil retention grooves machined into the gear faces ensure constant lubrication film integrity even during high-RPM shifts. These features work synergistically to prevent micropitting and spalling failure modes that plague counterfeit parts in the secondary market.
Comparative Advantages
Unlike aftermarket substitutes, the authentic AZ2210030032/7 countershaft gear undergoes rigorous magnetic particle inspection to eliminate subsurface defects before final assembly. Each batch receives surface texture analysis to verify the optimal Ra 0.8-1.6¦Ìm finish that promotes oil adhesion while minimizing parasitic drag losses. These quality control measures exceed ISO 6336 fatigue strength calculations, providing a 32% higher safety factor against tooth bending failures compared to reverse-engineered components.
Application Scenarios
This specialized transmission gear excels in multiple heavy-duty contexts where HOWO trucks dominate markets. Mining operations benefit from its resistance to particulate contamination thanks to precision-machined labyrinth seals that integrate perfectly with the AZ2210030032/7 assembly. In cold-chain logistics, the gear’s exceptional thermal stability prevents dimensional warping during repeated temperature cycling from freezer units. For construction fleets operating in mountainous terrain, the hardened tooth faces withstand repeated shock loads during compression braking maneuvers without developing stress risers.
Warranty Assurance
Every AZ2210030032/7 countershaft gear includes 24-month unlimited mileage coverage against manufacturing defects with standard commercial use.
Certified Quality
Manufactured under IATF 16949 quality systems with traceable material certificates available upon request.
Technical Partnerships
Our engineering team collaborates directly with transmission specialists to develop installation best practices specific to the AZ2210030032/7 component. Detailed technical bulletins cover proper preloading procedures for tapered roller bearings and recommended break-in sequences that optimize gear mesh patterns. Maintenance protocols detail specific GL-5 gear oil viscosity grades and particulate contamination thresholds that maximize component lifespan beyond OEM projections, making this countershaft second gear a smart investment for cost-conscious fleet managers.
Global Logistics
Strategically stocked in distribution centers across three continents, the authentic AZ2210030032/7 countershaft gear ships with protective cosmoline coating within shock-absorbent transit packaging. Air-ride trucking ensures vibration-free delivery while our climate-controlled warehouses prevent corrosion during storage. Custom export documentation ensures rapid customs clearance, delivering critical components faster than alternative suppliers. International customers appreciate our HTS code classification services that minimize import duties for transmission parts.