7421010372 Renault Trucks Premium Overflow Valve

What does an overflow valve do?

This injector pump overflow valve is a critical pressure control component that maintains internal pump pressure by redirecting excess fuel back to the return line. By regulating the volume of recirculated fuel, it ensures consistent injection timing and engine stability during heavy-duty operation.

Vehicle and engine compatibility

This component is specifically engineered for Renault Trucks Premium models equipped with DXi11 engines. It provides a reliable solution for maintaining the fuel system's pressure balance in these heavy commercial vehicles.

Installation and maintenance

The unit features an M10x1 thread size for precise installation. Technicians should ensure that all mounting surfaces are clean and that the replacement is performed according to standard fuel system maintenance protocols to prevent air ingress or pressure drops.

Troubleshooting and selection

Regular inspection of the overflow valve can help prevent symptoms such as irregular idling or inconsistent engine power caused by disrupted fuel flow. Consult your authorized distributor for further guidance.

OE cross-reference

0103 064 (Injector Pump Overflow Valve) is the equivalent of the Renault Trucks OE number. This part directly replaces Renault Trucks OE number 7421010372.