This Mercedes-Benz mercedes W220 S55 CLS55 emission EGR smog pump check valve left & right set OEM is a flow-control valve manufactured by Mercedes-Benz. It regulates or directs the flow of fluid or air within a fluid power circuit, switching or metering flow as its actuator or solenoid is energized. It is commonly in hydraulic power units, pneumatic control panels, and industrial process piping.
