BD Diesel Cool Cover - Dodge 1988-1998 12-valve 5.9L (Single)Are you looking to dress up your 12 valve 5. 9L Cummins motor? Try BDs Cool Covers for the 1988 1998 12V Dodge Cummins. Made from cast aluminum and black powder coated with machined fin tops for a clean look, these covers replace the OEM valve covers and add a little more detail to your 12V Cummins engine. Covers come with new gaskets and sold separately or in a set of six. Heads with old style ARP studs, 14mm studs, A1 studs or other such head studs