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Merchandisers

Automatic Belt Tensioners Heavy Duty

Dayco Heavy Duty Automatic Belt Tensioner designed for heavy duty diesel engine accessory drive applications

As the major supplier to heavy duty original equipment manufacturers, Dayco’s Heavy Duty Tensioners are guaranteed to be engineered and manufactured to the strictest design specification. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability. Dayco’s Heavy Duty Tensioner features a patented “flat spring” 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, virtually all Dayco Heavy Duty Tensioners feature “extremely damped” designs using a wave spring and a metal ring with a bonded rubber surface to act as a “radial shock absorber” for the tensioner arm.


Click on a column heading to sort the items in the list

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Part numberDescription
89417Automatic belt tensioner
89418Automatic belt tensioner
89419Automatic belt tensioner
89420Automatic belt tensioner
89421Automatic belt tensioner
89422Automatic belt tensioner
89423Automatic belt tensioner
89424Automatic belt tensioner
89426Automatic belt tensioner
89428Automatic belt tensioner
89433Automatic belt tensioner
89435Automatic belt tensioner
89436Automatic belt tensioner
89439Automatic belt tensioner
89440Automatic belt tensioner
89441Automatic belt tensioner
89442Automatic belt tensioner
89444Automatic belt tensioner
89446Automatic belt tensioner
89447Automatic belt tensioner
89448Automatic belt tensioner
89449Automatic belt tensioner
89450Automatic belt tensioner
89457Automatic belt tensioner (Polymer pulley)
89458Automatic belt tensioner (same as APV1151)
89460Automatic belt tensioner
89465Automatic belt tensioner
89468Automatic belt tensioner (same as APV3095)
89470Automatic belt tensioner
89475Automatic belt tensioner
89477Automatic belt tensioner
89478Automatic belt tensioner ( replaces 89409)
89479Automatic belt tensioner ( replaces 89408)
89480Automatic belt tensioner (replaces 89405)
89481Automatic belt tensioner ( replaces 89406)
89482Automatic belt tensioner ( replaces 89414) Same as APV3087
89483Automatic belt tensioner (replaces 89401)
89484Automatic belt tensioner (replaces 89404)
89485Automatic belt tensioner (replaces 89410)
89486Automatic belt tensioner (replaces 89415)
89487Automatic belt tensioner (replaces 89413)
89488Automatic belt tensioner (replaces 89402)
89489Automatic belt tensioner (replaces 89411)
89490Automatic belt tensioner (replaces 89407)
89491Automatic belt tensioner (replaces 89403)
89493Automatic belt tensioner (replaces 89412)
89495Automatic belt tensioner
89497Automatic belt tensioner
89498Automatic belt tensioner
APV1044Automatic belt tensioner
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