Standard Motor Products replacement exhaust gas recirculation valves help you get maximum fuel efficiency and power from your engine. Properly operating EGR valves are essential to helping your vehicle run flawlessly. The EGR valves are the main emissions control components in the exhaust gas recirculation system. The valves are located on the intake manifold and open a small passageway between the exhaust and intake manifolds to allow a metered amount of exhaust to flow back into the engine. This reduces combustion temperatures and helps to control the formation of oxides of nitrogen (NOx). The EGR valves are opened by the application of vacuum to their control diaphragm or, on new engines, the valves are electronic and use one or more solenoids or a small stepper motor to operate. Replace your vehicle's worn or malfunctioning EGR valve with these reliable Standard Motor Products replacement EGR valves.