Our selection of Heads and Valve train components are strong and reliable replacements for the OEM parts. Whether you upgrade your cylinder heads that offer increased durability and thickness, you can depend on our selection to give you the performance your 6.7L Cummins demands! Ram Cummins Fitments: 1994, 1995, 1996, 1997, 1998 Ram 5.9L Cummins. Submodel Fitments: Tradesman, Laramie, Laramie Longhorn, Big Horn, Limited, Lone Star, Power Wagon. Some exceptions apply, please see individual product pages for specific fitments.