Dayco Automatic Belt Tensioner 89423 Housing type Teeth: 167

Teeth: 167

The control arm serves as the interface between the chassis and wheel assembly

engine oil made from pure hydrocracked base oils and an advanced anti-wear additive system for complete engine protection

This belt construction incorporates a wear-resistant EPDM rib material

Outside diameter: 121

Dayco Automatic Belt Tensioner 89423 Housing type Teeth: 167Dayco 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