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Gates 38503 FleetRunner Heavy-Duty Belt Drive Tensioner

4.7 (1) Write Review
Free shipping on orders over $29.99

$98.52

$ 40 .99 $40.99

In Stock

About this item

  • 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


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.


Tonya Caldwell
Reviewed in the United States on December 24, 2019
Freighliner pully.. great product..fit perfect