Manufactured specifically for diesel vehicles, our EGR Cooler is quality-engineered to cool exhaust gas and recirculate it back to the engine. Replacement prevents leaking into the exhaust manifold. Product Features:Includes all necessary O-rings, gaskets, and hardware for a complete repairStainless steel design including stainless steel end capsNecessary replacement item for reducing emissions and passing state inspectionStraight tube style EGR cooler also available, part number 904-262