A3529971230 Injector Pump Overflow Valve for Mercedes-Benz

What does an injector pump overflow valve do?

This injector pump overflow valve is a critical pressure control component designed to maintain the internal pressure balance within the fuel injection pump. By redirecting excess fuel back to the return line, it ensures that the pump maintains a constant pressure threshold, which is vital for stable engine idling and consistent power delivery in heavy commercial vehicles.

Compatibility with Mercedes-Benz engines

This component is specifically compatible with Mercedes-Benz engines and fuel systems. It serves as a reliable replacement to ensure the injection pump operates within its intended parameters, preventing irregular fuel flow or loss of engine performance during demanding service cycles.

Installation and maintenance guidance

For optimal performance, technicians should inspect the overflow valve during routine fuel system maintenance. Ensuring the valve remains free of debris and operates at the correct pressure prevents issues like increased fuel consumption or engine surging. Consult your authorized distributor to verify fitment for your specific engine model.

OE cross-reference

0101 043 (Injector Pump Overflow Valve) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A3529971230.