244900 Volvo FM12 D12D Overflow Valve

What does an overflow valve do?

The injector pump overflow valve is a critical control component that maintains internal pump pressure by redirecting excess fuel back to the return line. By regulating this pressure, the valve ensures the diesel injection pump operates within precise tolerances, which is vital for engine stability and power delivery.

Vehicle and engine compatibility

This specific component is compatible with Volvo FM12 trucks utilizing the D12D engine. It serves as a reliable solution for workshop technicians and fleet managers maintaining heavy commercial vehicle engines. The part is engineered to meet high-strength component standards for long-term durability under heavy-duty operating conditions.

Installation and maintenance

When replacing this part, technicians should verify the opening pressure and ensure all sealing elements are correctly seated to prevent pressure drops. Proper installation of this overflow valve helps prevent symptoms like irregular idling or increased fuel consumption caused by pressure imbalances within the fuel system.

Troubleshooting fuel pressure

Check the compatibility list to ensure this component matches the specific requirements of your engine group.

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.