0101 045 Overflow Valve for Injector Pumps

What does an overflow valve do?

The injection pump overflow valve is a critical control component designed to maintain constant internal pressure within the diesel injection pump. By redirecting excess fuel back to the return line, it prevents pressure imbalances that can lead to unstable idling or inefficient fuel consumption. This component is essential for the consistent delivery of fuel under varying engine loads.

Compatible vehicles and engines

This part is specifically designed for use in Volvo engines including D12, D16, and TD series, as well as Renault Trucks Magnum DXi12 engines. It is also compatible with Iveco, MAN, Mercedes-Benz, and Scania heavy commercial vehicles. The valve ensures that the fuel system operates within its required pressure parameters across diverse fleet applications.

Installation and maintenance

To ensure proper installation, technicians should verify that the opening pressure matches the original manufacturer specifications. Inspecting the sealing elements and O-rings during replacement is highly recommended to prevent leaks. Maintaining the integrity of the overflow valve helps prevent common issues like engine power loss or erratic fuel delivery.

Troubleshooting guidance

Consult your authorized distributor to confirm specific fitment for your engine type and pump model.

OE cross-reference

0101 045 (Injector Pump Overflow Valve) is the equivalent of the Bosch, Deutz, Iveco, LASO, MAN, Mercedes-Benz, Renault Trucks, Scania and Volvo OE numbers. This part directly replaces Bosch OE numbers 1417413029, 1457413010. It also replaces Deutz OE number 8122353, Iveco OE number 79097353, LASO OE number 20071503, MAN OE numbers 81541146054, 90816929667, Mercedes-Benz OE numbers 0004770229, 0004770329, Renault Trucks OE numbers 0003017022, 3017022, 854805700, Scania OE numbers 1353622, 154523, 154535, 313969 and Volvo OE numbers 239133, 244900, 7035096.