Dayco Automatic Belt Tensioner 89485 SRT The Protex unique vane designs

The Protex unique vane designs allow for better cooling to give you top performance at high braking temperatures

Height: 28mm

It features the latest additive technology with an advanced anti wear additive package and a low shear rate viscosity modifier

Vent valve: 25mm

Flange to base: 30

Dayco Automatic Belt Tensioner 89485 SRT The Protex unique vane designsDayco 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