Dayco 89417 HD Tensioner

As the major supplier to heavy duty original equipment manufacturers, this Dayco No Slack Heavy Duty Tensioner is guaranteed to be engineered and manufactured to the strictest design specifications. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability. This Dayco Heavy Duty Tensioner features a patented “flat springâ€\x9d design that’s engineered to handle the higher torque and power pulses exerted by today’s diesel engines. Rugged pulleys with double lifetime lubricated bearings deliver long lasting, dependable service. In addition, this Dayco Heavy Duty Tensioner features an “extremely dampedâ€\x9d design using a wave spring and a metal ring with a bonded rubber surface to act as a “radial shock absorberâ€\x9d for the tensioner arm. This tensioner is another Dayco product.