Drain the transmission fluid completely before opening the housing.
The part number refers to a specific automotive component, typically identified as a transmission gear or synchronizer component used in heavy-duty trucks and commercial vehicles . Specifically, it is a gear used in the manual transmission systems of Chinese-manufactured brands like FAW (First Automobile Works) and Jiefang .
Helical gear design to ensure smoother engagement and reduced noise during operation.
Listen for high-pitched whining (indicates wear) or "clunking" sounds (indicates chipped or broken teeth). If the truck pops out of gear under load, the engagement teeth on this part may be worn.
To maximize the lifespan of this gear, follow these maintenance protocols:
Carburized and quenched to achieve high surface hardness while maintaining a tough core.
Often paired with transmissions that utilize this gear set.
This part is most commonly found in the transmissions of heavy trucks. Key compatible platforms include:
