Dayco Automatic Belt Tensioner 89470 Microshield Foot Dia: 47mm

Foot Dia: 47mm

Width: 15mm

Nose diameter: 44

this upgraded rotor gives you additional features and benefits

cooler running

Dayco Automatic Belt Tensioner 89470 Microshield Foot Dia: 47mmDayco 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