239133 Volvo F10 TD102 Overflow Valve

What does an overflow valve do?

This injector pump overflow valve plays a vital role in maintaining the pressure balance within the fuel injection pump, ensuring the engine operates with stability. By redirecting excess fuel back to the low-pressure circuit, it prevents pressure spikes that could disrupt fuel delivery. This component is manufactured using heavy-duty grade materials to withstand the demanding thermal and mechanical stresses of diesel combustion cycles.

Engine compatibility and fitment

This part is specifically designed for Volvo F10 trucks equipped with TD102 engines. It ensures precise fuel recirculation, which is essential for maintaining consistent injection timing and preventing irregular fuel flow. It is also compatible with other heavy commercial vehicle engines requiring similar pressure regulation specifications.

Installation and maintenance guidance

For workshop technicians, proper installation is critical to avoid air or dirt entering the fuel system. When replacing this component, ensure that all connections are secure and that the system is thoroughly bled of air to prevent engine stumbling. Maintaining the correct seating and cleanliness during the procedure is vital for long-term reliability.

Troubleshooting engine stability

If you notice increased fuel consumption or loss of engine performance, it may indicate a failure in the overflow valve's ability to regulate pressure correctly. Consult your authorized distributor.

OE cross-reference

0101 045 (Injector Pump Overflow Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 239133.