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Automatic Belt Tensioners Heavy Duty

Dayco® Gold Label® No Slack™ 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 Gold Label No Slack™ 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 Gold Label 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 Gold Label 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
89401Automatic belt tensioner
89402Automatic belt tensioner
89404Automatic belt tensioner
89405Automatic belt tensioner
89406Automatic belt tensioner
89407Automatic belt tensioner
89408Automatic belt tensioner
89409Automatic belt tensioner
89410Automatic belt tensioner
89411Automatic belt tensioner
89412Automatic belt tensioner
89413Automatic belt tensioner
89414Automatic belt tensioner
89415Automatic belt tensioner
89416Automatic belt tensioner
89417Automatic belt tensioner
89418Automatic belt tensioner
89419Automatic belt tensioner
89420Automatic belt tensioner
89421Automatic belt tensioner
89422Automatic belt tensioner
89423Automatic belt tensioner
89424Automatic belt tensioner
89425Automatic belt tensioner
89426Automatic belt tensioner
89427Automatic belt tensioner
89428Automatic belt tensioner
89429Automatic belt tensioner
89430Automatic belt tensioner
89431Automatic belt tensioner
89432Automatic belt tensioner
89433Automatic belt tensioner
89434Automatic belt tensioner
89435Automatic belt tensioner
89436Automatic belt tensioner
89437Automatic belt tensioner
89438Automatic belt tensioner
89439Automatic belt tensioner
89440Automatic belt tensioner
89441Automatic belt tensioner
89442Automatic belt tensioner
89443Automatic belt tensioner
89444Automatic belt tensioner
89445Automatic belt tensioner
89446Automatic belt tensioner
89447Automatic belt tensioner
89448Automatic belt tensioner
89449Automatic belt tensioner
89450Automatic belt tensioner
89456Automatic belt tensioner
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