Gates Accessory Drive Belt Tensioner Assembly 38521

Assembled device that applies load to the drive belt. (38521) by Gates

FleetRunner Heavy-Duty Automatic Belt Tensioners are the longest-lasting belt tensioners in the industry, engineered to exceed demanding OEM requirements. In laboratory tests under extreme peak-to-peak vibration and contamination tests, FleetRunner heavy-duty tensioners lasted up to 3X longer than competitive aftermarket tensioners.

• Optimized components engineered for maximum strength and durability
• Patented design provides superior belt alignment and tension for improved drive efficiency and life
• Patented labyrinth seal prevents contamination of internal parts for maximum durability and service life
• Long-lasting steel pulleys with dust shields to protect internal bearings from contamination
• Double row bearings carry more load and last up to 3X longer than two individual bearings
• Chrome-silicone round torsion spring for less âÆ© ¼Ã©ex-fatigue than âÆ© ¼Ã©at-spring designs
• Patented damping mechanism provides maximum stability, reducing vibration and increasing the life of the belt, tensioner and other accessory drive components

Fits: 2004-1999 Kenworth, T800, Cummins ISM Diesel, Tensioner Assy. - Fan & Alt.

Vehicle Fitments: