The Horton DM Advantage Two-Speed Remanufactured Fan Clutch is the perfect solution for Kenworth and Peterbilt trucks. With a back pulley diameter of 7.56" , this fan clutch is designed to provide maximum reliability and long operating life. The optimized two-speed function ensures efficient cooling and improved fuel efficiency, while the maximum available horsepower for auxiliary systems reduces operating noise. TThis fan clutch makes for an easy installation, so you can get back on the road. FleetPride is your First Click in Heavy Duty®.