Description Updated EGR Cooler for 2006-2007 GM 6.6L LBZ Dorman 904-121 Dorman’s EGR Cooler is quality-engineered to cool exhaust gas and recirculate it back to the engine. Replacement prevents coolant from leaking into the exhaust manifold and may protect the engine from extensive damage. Includes all necessary O-rings, gaskets, and hardware for a complete repair Manufactured from high quality stainless steel Necessary replacement item for reducing emissions and passing state inspection A rigorous quality inspection has been undertaken to ensure product standards Lifetime Warranty on all Dorman products
