This belt tensioner fits Cummins 4B 3.9 and 6B 5.9 engine applications, keeping the drive belt properly aligned and engaged with the pulleys to prevent slipping or wear. It is a PAI-made replacement sold individually. Use it when replacing a worn or failing tensioner on these Cummins engine families.
Features
Belt tensioner, PAI part number 180890E
Fits all Cummins 4B 3.9 engines
Fits all Cummins 6B 5.9 engines
Cross-references to Cummins 3921524, 3924026, 3930769, 3936197, 3934816, 3978021, and 3934814
Sold pack: 1 each
Tech Specs
- Fitment: All Cummins 4B 3.9 engines
- Fitment: All Cummins 6B 5.9 engines
- Cross-reference (Cummins): 3921524, 3924026, 3930769, 3936197, 3934816, 3978021, 3934814
- Sell pack: 1 EACH
