21714847
Accessory Drive Belt Tensioner
Mack

This tensioner maintains proper tension on the accessory drive belt, ensuring efficient operation of the alternator, power steering pump, and other belt-driven components. Its precise tensioning capability prevents belt slippage and reduces wear, extending the lifespan of belts and pulleys. The tensioner’s robust design withstands the vibrations and stresses of heavy-duty operation, contributing to overall engine reliability. Easy to install and adjust, it simplifies belt maintenance and replacement procedures. Proper tensioning is vital for optimal accessory performance and fuel efficiency. Source One Parts Center offers this tensioner as a dependable part to help keep your truck’s accessory drive system running smoothly and reliably, supporting consistent vehicle operation.