Dayco Automatic Belt Tensioner 89689 Ultra-4WD Supplied with special installation tool

Supplied with special installation tool

acts as a contact agent (electrical)

The Tridon stop light switch range has been carefully researched and engineered to operate within original equipment manufacturer's specifications for each specific application

Outside Diameter: 88mm

Teeth: 127

Dayco Automatic Belt Tensioner 89689 Ultra-4WD Supplied with special installation toolDayco 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