87GB44A
Accessory Drive Belt Tensioner
Mack

This tensioner is a vital component of the accessory drive belt system, maintaining proper tension to ensure efficient operation of belts that power essential engine accessories. Its precise tensioning capability prevents belt slippage and reduces wear, thereby extending the lifespan of belts and related components. The tensioner also absorbs vibrations and compensates for belt elongation over time, contributing to smoother engine operation. Proper functioning of this part is key to avoiding belt-related failures that could lead to engine overheating or accessory malfunction. Source One Parts Center offers high-quality tensioners that meet rigorous industry standards, ensuring your engine's accessory drive system remains reliable and efficient.