1677850 Volvo FL10 D10A Overflow Valve

What does an overflow valve do?

The injector pump overflow valve is a critical pressure control component that maintains the internal pressure balance of the fuel injection pump. By redirecting excess fuel back to the return line, it prevents overpressure and ensures a steady flow to the injectors. This part is essential for maintaining engine idle stability and preventing irregular fuel consumption in heavy commercial vehicle engines.

Compatibility and fitment

This specific component is designed for Volvo FL10 trucks equipped with D10A engines. It serves as a reliable replacement for original equipment to ensure the fuel system operates within its designed pressure thresholds. This part is compatible with Volvo diesel engine systems.

Installation and maintenance

To ensure proper installation, technicians should verify that the M8x1,5 thread size matches the existing pump housing. When replacing this component, it is vital to inspect the fuel lines and return circuit for any debris that could affect the new valve's seating. Regular checks of the fuel system's pressure balance can prevent sudden loss of engine performance.

Selection guidance

Consult your authorized distributor to verify exact fitment for your specific engine serial number.

OE cross-reference

0103 068 (Injector Pump Overflow Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 1677850.