244900 Volvo FL12 TD123 Overflow Valve

What does an overflow valve do?

The injector pump overflow valve is a critical pressure control component that redirects excess fuel back to the low-pressure circuit to maintain a stable pressure threshold within the injection pump. By regulating this recirculation, the valve helps prevent irregular fuel flow and ensures the engine operates smoothly under heavy-duty conditions.

Vehicle and engine compatibility

This specific component is compatible with Volvo FL12 vehicles equipped with TD123 engines. It serves as a reliable replacement for maintaining the internal pressure balance required for precise fuel delivery in heavy commercial vehicle engines.

Installation and maintenance

When performing installation, it is vital to ensure a clean working environment to prevent contaminants from entering the fuel system. A workshop technician should verify that the system is properly bled of air following the replacement to ensure optimal operation.

Troubleshooting and selection

If engine running stability suffers or fuel consumption increases, the overflow valve should be inspected for proper pressure regulation and seating.

OE cross-reference

0101 045 (Injector Pump Overflow Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 244900.