Cummins Belt Tensioner with bolt, Fits ALL Cummins B & C Series Mechanical Engines*

This tensioner fits ALL Cummins B & C Series Marine Mechanical Engines.* This latest design eliminates typical belt tensioner “jumping” and has superior spring tensioner characteristics to eliminate belt squeal. 1/2″ square drive is now standard to remove the belt.

*There is a rare exception for some very early vintage 6BTA’s have a different configuration (pre-90’s roughly) Please verify visually with the pictures if you have an older engine or email a few pics of your belt and tensioner it is likely we have the tensioner you need. (These days we only see 1 or 2 of these per year)