2428-89448
Drive Belt Tensioner
Mack

This tensioner maintains proper tension on the engine’s drive belt, which powers essential accessories such as the alternator, water pump, and air conditioning compressor. Its spring-loaded mechanism automatically adjusts to belt elongation and wear, ensuring consistent belt tension. Proper tensioning prevents slippage, reduces wear, and extends the lifespan of the belt and associated components. A reliable tensioner is critical for maintaining engine efficiency and preventing unexpected breakdowns. Its rugged construction ensures durability under the harsh conditions of engine compartments. Source One Parts Center offers this high-quality tensioner, a vital part for keeping your vehicle’s accessory belt system operating smoothly and reliably.