Equip your vehicle to be Ready for the Road Ahead , with the Dayco 89439 Heavy Duty Belt Tensioner, a key piece that provides optimized drive belt tension. Due to its straightforward design, this replacement tensioner is able to help create the correct amount of tension on drive belts, delivering ample amounts of power to engine accessories such as water pumps, AC compressors, steering pumps, and alternators. Possible symptoms of a tensioner that needs to be checked or removed include engine squeals, chirps, rattling sounds, or visible frays on belts.
FleetPride is your First Click in Heavy Duty .
Reduces the risk of belt noise and slippage
Engineered for high strength and reduced weight with heavy duty aluminum castings
Fashioned to keep contamination out and resist cracking, fatigue, and deformation
High temperature grease extends pulley life and increases wear resistance while a hardened belt running service prevents wear
Made with a flat spring design to reduce the risk of premature accessory bearing failure due to high tension when a new belt is installed
Clockwise direction
Serpentine belt type
1-pulley
For Freightliner, International, Kenworth, Peterbilt, Sterling Truck, and Western Star applications
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