Highway Products Heavy Duty T-Hex Aluminum Headache Rack. Fits: 1994 - 1998 Ram 5.9L Cummins; 1994 - 2002 Ram 5.9L Cummins; 1998.5 - 2002 Ram 5.9L 24-Valve Cummins; 2001 - 2004 Chevy/GMC 6.6L LB7 Duramax; 2003 - 2004 Ram 5.9L Cummins; 2004.5 - 2005 Chevy/GMC 6.6L LLY Duramax; 2004.5 - 2007 Ram 5.9L Cummins; 2006 - 2007 Chevy/GMC 6.6L LLY & LBZ Duramax; 2007.5 - 2009 Ram 6.7L Cummins; 2010 - 2018 Ram 6.7L Cummins; 2014 - 2018 Ram 1500 EcoDiesel; 2019 - 2024 Ram 6.7L Cummins.