High-strength alloy steel (typically 20CrMnTi) to withstand friction and heat.
Check the surrounding synchronizer hubs and bearings for wear. Replacing a gear without checking its counterparts often leads to premature failure. 17012-0101831
Drain the transmission fluid completely before opening the housing. 17012-0101831
Avoid "grinding" gears; ensure the clutch is fully disengaged to prevent chipping the teeth of the 17012-0101831. 17012-0101831
Carburized and quenched to achieve high surface hardness while maintaining a tough core.
One of China's most common heavy truck platforms.