Dayco Automatic Belt Tensioner 89304 partspal It contains a special anti-rust

It contains a special anti-rust additive for enhanced protection against rust and corrosion in marine and salt water environments

The solvent free formulation protects gaskets and seals from damage during the cleaning process

provides smoother idling and prevents against detonation damage

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

Dayco Automatic Belt Tensioner 89304 partspal It contains a special anti-rustDayco 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