Dayco Automatic Belt Tensioner APV3091 Housing type Special design thermostat integrated into

Special design thermostat integrated into housing

It contains a combination of high technology additives

Outside diameter: 121

premium performance semi-synthetic manual gearbox & transaxle oil

Dayco Automatic Belt Tensioner APV3091 Housing type Special design thermostat integrated intoDayco 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