7420430101 Premium DXi13 Overflow Valve — Renault Trucks

What does an overflow valve do?

This fuel injection pump overflow valve is a critical pressure regulation component designed to maintain constant internal pump pressure. By redirecting excess fuel back to the return line, it prevents pressure spikes and ensures the fuel delivery system operates within required parameters. Built with high-strength components, it provides long-term durability under demanding engine operating conditions.

Vehicle and engine compatibility

This specific unit is designed for use in Renault Trucks Premium vehicles equipped with DXi13 engines. It serves as a reliable replacement for original components, ensuring the fuel system maintains the precise pressure balance required for optimal combustion and engine stability.

Installation and maintenance

Technicians should verify that the M10x1,5 thread size matches the existing installation to ensure a correct seal. During replacement, it is recommended to inspect the fuel return lines and ensure no air is trapped in the circuit to prevent subsequent engine stumbling or idling issues.

Troubleshooting guidance

Proper maintenance of the fuel injection system helps prevent irregular fuel flow and power loss. Consult your authorized distributor to ensure this part meets your specific engine requirements.

OE cross-reference

0103 074 (Injector Pump Overflow Valve) is the equivalent of the Renault Trucks OE number. This part directly replaces Renault Trucks OE number 7420430101.