20741620 Overflow Valve for Volvo D13 Fuel System

What does an overflow valve do?

This injector pump overflow valve is a critical component designed to maintain constant internal pressure within the fuel injection pump. By redirecting excess fuel back to the return line, it prevents pressure spikes and ensures stable engine operation under varying loads.

Vehicle and engine compatibility

This component is specifically compatible with Volvo D13 engines. It provides a reliable solution for maintaining the pressure balance required for efficient fuel delivery in heavy commercial vehicle applications.

Technical specifications and installation

The valve features an M10x1 thread size and is manufactured with high-strength components to withstand the rigorous demands of diesel fuel environments. When replacing this component, technicians should ensure all seals are inspected to maintain system integrity.

Maintenance and performance

Properly functioning overflow valves are essential to prevent irregular fuel flow and engine performance issues. Maintaining this component helps prevent increased fuel consumption and idling instability.

OE cross-reference

0103 064 (Injector Pump Overflow Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20741620.