- About This Product
The tensioner is a spring-loaded pulley designed to keep the serpentine belt tensioned on the pulleys. Over time the tensioner spring can weaken or break allowing the serpentine belt to come loose.
Installing the CUMMINS replacement tensioner assembly for '89-'02, 5.9L Dodge Cummins Turbo Diesel truck will keep the belt tight again.
Dayco Part No. 89219