244900 Volvo FH12 D12D Overflow Valve

What does an overflow valve do?

This injector pump overflow valve is a critical component designed to maintain the internal pressure balance of the injection pump by redirecting excess fuel back to the return line. By regulating this pressure, the valve directly influences engine idle stability and overall fuel consumption levels in heavy commercial vehicles.

Vehicle compatibility and engines

This specific component is engineered for Volvo FH12 trucks featuring D12D engines. It serves as a reliable replacement for Volvo OEM parts, ensuring that the fuel injection timing and pressure remain within the required operating parameters for heavy-duty engine cycles.

Installation and maintenance

For successful installation, workshop technicians should ensure the fuel system is thoroughly cleaned to prevent contamination. After installation, the fuel system must be properly bled of air to prevent airlocks. Always verify that the mounting surface is clean and that the component is tightened to the correct torque specifications to avoid pressure leaks.

Selection guidance

Consult your authorized distributor to confirm exact fitment for your specific engine configuration.

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.