Gates Serpentine Belt -- Gates FleetRunner Micro-V Heavy Duty V-Ribbed Belt. 2003, 2005-2010 Ram 2500 Laramie With Air Conditioning. 2008-2010 Ram 2500 SXT With Air Conditioning. 2003-2004, 2006-2010 Ram 2500 (submodel: SLT, ST) With Air Conditioning.
