Dayco Automatic Belt Tensioner 89253 Small-Engine Diesel Fuel Boost + is

Diesel Fuel Boost + is a fuel treatment designed to enhance the cetane rating of regular diesel fuel

designed for the initial lubrication of engine parts during the engine assembly process

Vent valve: 25mm

The coolant temperature sensor must be compatible with the vehicle engine management system

Dayco Automatic Belt Tensioner 89253 Small-Engine Diesel Fuel Boost + isDayco 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