21422765
Accessory Drive Belt Tensioner
Mack

This tensioner is a vital component of the accessory drive belt system, responsible for maintaining proper belt tension to ensure efficient operation of engine accessories such as the alternator, power steering pump, and air conditioning compressor. Its precise tensioning capability reduces belt slippage and wear, extending the lifespan of the belt and associated components. Proper tensioning is crucial for optimal engine performance and to prevent costly breakdowns. The tensioner’s robust design withstands the vibrations and heat generated during engine operation. Source One Parts Center provides high-quality tensioners that meet OEM standards, ensuring your engine accessories operate smoothly and reliably.