Dayco Automatic Belt Tensioner APV2529 Premix Dayco Automatic Tensioners come with

Dayco Automatic Tensioners come with either a glass-filled polymer (plastic) or steel pulley that features a dust cover to protect against contaminants

DMH2811 (x1)

which prevents corrosion for a longer life and provides an easier fit to your vehicle

Crank bore: 39mm

The sensor is crucial in the control of temperature-based functions performed by the ECU (eg spark and fuel timing

Dayco Automatic Belt Tensioner APV2529 Premix Dayco Automatic Tensioners come withDayco 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