21631484
Accessory Drive Belt Tensioner
Mack

This accessory drive belt tensioner is a key component in maintaining proper belt tension within the accessory drive system. It ensures that the belt remains tight enough to drive auxiliary components such as the alternator, power steering pump, and air conditioning compressor, without slipping or excessive wear. Proper tensioning reduces belt noise, prevents premature failure, and promotes efficient operation of engine accessories. Its robust construction and precise spring mechanism allow for consistent tension adjustment, accommodating belt stretch over time. Reliable belt tensioners are essential for minimizing downtime and ensuring the longevity of belt-driven components. Source One Parts Center provides this tensioner as a dependable part to help keep your heavy-duty truck's accessory systems running smoothly and efficiently.