303.01.0009 Relay Valve — MERCEDES BENZ Compatible

This heavy-duty relay valve is an essential component within the pneumatic braking system of heavy commercial vehicles. Designed to regulate air pressure flow with precision, it ensures reliable braking performance under demanding operational conditions. The component is engineered with high-strength components to maintain structural integrity and consistent response times during vehicle operation.

303.01.0009 is the OE-equivalent of the MERCEDES BENZ 386 429 70 44 relay valve used in MERCEDES BENZ and VOLKSWAGEN TRUCK vehicles, as well as being compatible with WABCO systems like 973 011 007 0. This part meets the technical requirements for heavy-duty transport applications, ensuring seamless integration into existing braking architectures.

For workshop technicians, this unit features standardized VOSS connections: Port 1 and Port 2 utilize M22x1,5 threads, while Port 4 is equipped with an M16x1,5 thread. It is designed to operate within a maximum pressure threshold of 10 BAR. Regular inspection of the pneumatic lines and port connections is recommended during routine brake system maintenance to ensure optimal performance and prevent air leaks.