Prepare your vehicle to be Ready for the Road Ahead , with the Dayco 89479 Heavy Duty Automatic Belt Tensioner that provides optimized drive belt tension. To deliver ample amounts of power to engine accessories such as AC compressors, water pumps, steering pumps, and alternators, this replacement tensioner works to create the correct amount of tension on drive belts. Symptoms of a tensioner that needs to be checked or removed include engine squeals, chirps, rattling sounds, or visible frays on a belt.
FleetPride is your First Click in Heavy Duty .
High temperature grease extends pulley life and increases wear resistance while a hardened belt running service prevents wear
Fashioned with a flat spring design to reduce the risk of premature accessory bearing failure due to high tension when a new belt is installed
Reduces the risk of belt noise and slippage
Manufactured for high strength and reduced weight with heavy duty aluminum castings
Designed to keep contamination out and resist cracking, fatigue, and deformation
Counter clockwise direction
Serpentine belt type
1-pulley
For Blue Bird, Freightliner, International, Kenworth, Peterbilt, Sterling Truck, and Thomas applications
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