20765317 Volvo TD102 Overflow Valve

What does an overflow valve do?

This injector pump overflow valve is a critical pressure control component that maintains the internal pressure balance of the injection pump. By redirecting excess fuel back to the low-pressure circuit, it ensures that the volume of recirculated fuel remains constant at a specific threshold, which is essential for stable engine operation and air purging.

Vehicle and engine compatibility

This component is specifically fitted to Volvo TD102 engines. It provides a reliable solution for heavy commercial vehicle maintenance, ensuring that the fuel delivery system operates within the required parameters to prevent irregular fuel flow or performance loss.

Installation and maintenance

When installing this component, technicians should ensure the M14x1.5 thread is clean and seated correctly to prevent leaks. It is highly recommended that the fuel system is thoroughly bled of any air following the replacement to ensure proper operation and prevent engine stumbling.

Troubleshooting and selection

If an engine experiences increased fuel consumption or irregular idling, inspecting the overflow valve for proper pressure regulation is a standard troubleshooting step. Consult your authorized distributor to ensure correct fitment.

OE cross-reference

0103 075 (Injector Pump Overflow Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20765317.