79379137 Check Valve — Volvo FMX D11B Equivalent

What does a check valve do?

This check valve plays a critical role in maintaining the direction of airflow within the pneumatic brake system of heavy commercial vehicles. By preventing backflow, it ensures that air pressure remains stabilized within the specific circuit, which is essential for consistent braking performance and system safety.

Compatible vehicles and engines

This component is specifically designed for Volvo FMX trucks equipped with D11B engines. It is also compatible with other heavy-duty vehicle applications requiring precise pneumatic regulation. The unit features three M22x1.5 threaded ports to facilitate secure connections within the air circuit.

Installation and maintenance

When performing installation, technicians must ensure the airflow direction matches the arrow on the housing to maintain correct circuit logic. The ports utilize M22x1.5 threading, and the component is rated for a maximum operating pressure of 10 BAR. Proper seating of the threads is vital to prevent air leaks during operation.

Troubleshooting and selection

Check this part against existing system requirements to ensure seamless integration into the brake or pneumatic system.

OE cross-reference

303.15.0001 (Check Valve Check Valves) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 79379137.