Dayco Automatic Belt Tensioner APV2739 SRT Bypass style thermostat with inverse

Bypass style thermostat with inverse jiggle pin

Small Engine 4 Stroke Multigrade 10W-30 is non-friction modified

Outside diameter: 191

DMH3529 (x1)

Overall width: 54

Dayco Automatic Belt Tensioner APV2739 SRT Bypass style thermostat with inverseDayco 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