Dayco Automatic Belt Tensioner 89689 Ultra-4WD cures squeaks and creaks and

cures squeaks and creaks and protects metal against corrosion

Outside Diameter: 74mm

This enhanced technology stabilises fuel to prolong fuel life and adds a lubricity improver to combat reduced lubrication due to frequent stop-starts

Supplied with special installation tool

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

Dayco Automatic Belt Tensioner 89689 Ultra-4WD cures squeaks and creaks andDayco 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