20741620 Volvo compatible Injector Pump Overflow Valve

What does an injector pump overflow valve do?

This injector pump overflow valve serves as a critical component within the fuel system, maintaining the necessary pressure balance within the injection pump by redirecting excess fuel. By regulating internal pressures, this component directly influences engine stability and fuel consumption efficiency in heavy commercial vehicle applications.

Compatible Volvo engines and models

This specific overflow valve is designed for compatibility with various Volvo models, including the FH12, FH13, FH16, FM10, FM11, FM12, FM13, FMX, NH12, VHD, and VNL series. It is suitable for a wide range of engines such as the D10A, D11A/B, D12C/D, D13A/B/C, D16C/E/G, and specialized engine groups like TAD1341-1345VE.

Installation and maintenance

When performing maintenance or replacement, technicians should verify the M10x1 thread size and ensure the component is seated correctly to prevent pressure drops. Proper installation ensures that the fuel return flow remains consistent with the injection pump's operating requirements.

Selection guidance

Consult your authorized distributor to ensure correct fitment for your specific engine serial number.

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.