Dayco Automatic Belt Tensioner 89321 EV-Hybrid Specially formulated glass-filled polymers ensure

Specially formulated glass-filled polymers ensure a high strength

DMH3095 (x1)

Designed not to fling off in competition at high speeds or temperatures or attract excessive amounts of dirt / mud / sand when off road

Equivalent to Ryco RTK249

Dayco Automatic Belt Tensioner 89321 EV-Hybrid Specially formulated glass-filled polymers ensureDayco No Slack Automatic Belt Tensioner is designed to maintain constant tension on serpentine belt drives. The serpentine belt drives consist of a single belt that powers most, if not all, of the engine's accessories. To maintain the proper tension throughout the drive, an automatic, spring loaded tensioner is incorporated into the drive system geometry. Dayco's Automatic Belt Tensioner features a patented "flat spring" design that's engineered to