20765317 Compatible Overflow Valve — Volvo FL10

What does an overflow valve do?

The injector pump overflow valve serves as a critical pressure control component within the fuel injection system. By redirecting excess fuel back to the return line, it maintains the internal pressure balance required for consistent fuel delivery. This stability is essential for preventing irregular fuel flow and ensuring the engine operates smoothly under various loads.

Vehicle and engine compatibility

This specific part is engineered for Volvo FL10 trucks equipped with TD103 engines. It is a heavy-duty grade component designed to withstand the rigorous operating conditions found in heavy commercial vehicle engines. The part features an M14x1,5 thread size to ensure precise fitment within the injection pump assembly.

Installation and maintenance guidance

To ensure proper engine performance, technicians should verify that the valve's opening pressure matches the manufacturer's requirements. When replacing this component, it is vital to inspect the fuel return lines and ensure all connections are secure to prevent air ingress into the system. Regular inspection of fuel system components helps prevent loss of power or irregular idling.

System performance and stability

Maintaining correct fuel pressure through a reliable overflow valve is essential for optimal fuel consumption and engine longevity.

OE cross-reference

0103 075 (Injector Pump Overflow Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20765317.