Replace the crankcase vent filter on top of the valve cover assembly on '03-'05, 5.9L Dodge Turbo Diesel trucks with this replacement filter from Cummins.
The vent filter includes a new O-ring for installation.
NOTE: Will not work on '06-'07 trucks. Cummins says you have to buy a new complete valve cover to replace the CCV filter on these trucks.
CUMMINS 3957987 Crankcase Vent Filter ('03-'05, 5.9L)