The WABCO 4721737040 is a genuine 3/2-way solenoid valve designed for use in commercial vehicle air braking and suspension systems. This normally closed valve operates at 24 volts and features M12x1.5 ports for reliable pneumatic connections. It is a critical component for controlling air flow in various vehicle applications, ensuring optimal performance and safety. This specific valve is commonly found in DAF, Iveco, MAN, Mercedes-Benz, Renault, Scania, and Volvo trucks, serving as a direct replacement for several OEM part numbers.