11 20013 0003 MAN Compatible Injector Pump Overflow Valve

What does an injector pump overflow valve do?

The injector pump overflow valve is a critical pressure control component that maintains the injection pump's pressure balance and directly affects engine stability. By redirecting excess fuel back to the low-pressure circuit, it ensures that the internal pump pressure remains constant during operation. This component is vital for preventing irregular fuel flow and maintaining consistent engine performance in heavy commercial vehicles.

Compatible vehicles and engines

This specific overflow valve is compatible with MAN engines and ensures reliable operation within the fuel system. It serves as a high-strength replacement for original components, maintaining the precise pressure threshold required to purge air and regulate fuel recirculation effectively.

Installation and maintenance

For professional installation, it is recommended that a workshop technician performs the replacement to ensure no air or contaminants enter the fuel system. After installation, the system must be properly bled of air to prevent further engine instability or performance loss.

Troubleshooting engine stability

Monitoring fuel system pressure is essential for fleet longevity. Replacing a faulty overflow valve can resolve issues related to irregular idling or increased fuel consumption caused by disrupted internal pump pressure.

OE cross-reference

0101 043 (Injector Pump Overflow Valve) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 11200130003.