1 417 413 004 Bosch compatible Overflow Valve

What does an overflow valve do?

This injector pump overflow valve acts as a vital pressure regulator within the fuel injection system. By redirecting excess fuel back to the return line once a specific pressure threshold is reached, it maintains a constant internal pressure within the pump. This regulation ensures that the fuel flow to the injectors remains steady, which is essential for maintaining stable engine operation under varying loads.

Compatibility and application

This component is designed to function within the complex fuel delivery architecture of heavy commercial vehicles. It is compatible with Bosch systems, providing a reliable solution for maintaining engine performance and efficiency. Ensuring the correct fitment helps prevent issues such as irregular fuel flow or increased consumption.

Installation and maintenance

For workshop technicians, proper installation is critical to avoid introducing air or contaminants into the fuel circuit. When replacing this component, it is essential to work in a clean environment and ensure the system is correctly bled of air after installation to prevent further engine faults.

Troubleshooting and stability

Maintaining the pressure balance within the injection pump is necessary for preventing performance drops. A faulty valve can disrupt the recirculated fuel volume, leading to instability in engine running characteristics.

OE cross-reference

0101 043 (Injector Pump Overflow Valve) is the equivalent of the Bosch OE number. This part directly replaces Bosch OE number 1417413004.