7421697342 Renault Trucks Premium Overflow Valve

What does an overflow valve do?

This injector pump overflow valve serves as a critical pressure regulation component within the fuel injection system. By redirecting excess fuel back to the return line, it maintains constant internal pump pressure, which is essential for stable engine operation and consistent fuel delivery under heavy-duty conditions.

Vehicle and engine compatibility

This specific component is engineered for Renault Trucks Premium trucks utilizing DXi13 engines. It provides a reliable solution for maintaining fuel system equilibrium, ensuring that the engine receives a steady flow of fuel regardless of operating loads.

Installation and maintenance

Installation and maintenance of this valve should be performed by a workshop technician to ensure correct seating and sealing. When replacing this component, verifying the M10x1 thread size and inspecting the surrounding fuel lines for debris can help prevent premature wear or pressure fluctuations in the fuel circuit.

Troubleshooting and selection

Regular inspection of the fuel system components can help prevent symptoms like irregular idling or loss of engine performance. Consult your authorized distributor to ensure this part meets your specific requirements.

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 7421697342.