Dayco Automatic Belt Tensioner APV2390 Microshield It features a double layer

It features a double layer of engine wear protection with full zinc (approx

DMH3527 (x1)

Thermostat

the Ultra Performance disc rotor is coated with the exclusive Ultracoat Z360 formula

Flange diameter: 45mm

Dayco Automatic Belt Tensioner APV2390 Microshield It features a double layerDayco 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