Gates 07-10 Freightliner Business Class M2 Cummins ISB Diesel Fan Alt. & A.C. Belt Drive Tensioner

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.