Dayco Automatic Belt Tensioner APV3757 Tool-Oil Dayco thermostats are designed to

Dayco thermostats are designed to OEM specifications and come with a heat-sensing wax-filled copper power pill that detects the coolant temperature in the engine

DMH3269 (x1)

Internal thermostat gasket not sold separately

traction and stability control

Foot Dia: 43mm

Dayco Automatic Belt Tensioner APV3757 Tool-Oil Dayco thermostats are designed toDayco 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