ACDelco GM Original Equipment Exhaust Gas Recirculation (EGR) Valve Gaskets help provide a gas-tight seal for the EGR valve mounting flange, and are GM-recommended replacements for your vehicle's original components. They are made from high temperature materials, and should be replaced whenever you service the EGR valve. These original equipment EGR valve gaskets have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Product Features:Helps provide a leak-free sealAllows exhaust pollutants to enter the engine for re-burnHelps the engine emission system operate properlyGM-recommended replacement part for your GM vehicle's original factory componentOffering the quality, reliability, and durability of GM OEManufactured to GM OE specification for fit, form, and function