Doc's Diesel Dodge RAM 6.7L/5.9L Cummins 15W-40 Full Synthetic Oil Change Kit 1989-2024Dodge RAM 6.7L/5.9L Cummins 15W-40 Full Synthetic Oil Change Kit 1989-2024. Doc's Dodge RAM 6.7L/5.9L Cummins Oil Filter 1989-2024 (Doc's NEW Black Oil Filter featuring upgraded materials and an enhanced grip!).
