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Dayco heavy duty automatic serpentine belt tensioner 89474 boasts a high-strength cast aluminum body designed to keep contamination out and resist cracking, fatigue, and deformation. Each tensioner Includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. 60mm pully diameter, 32.8mm pully width. Counter clock wise direction. For Blue Bird, Fleetwood, Ford, Kenworth, Monaco, Peterbilt, and Sterling applications.
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