Common Rail Pressure Relief Valve 1110010015 / F00R000741 / 0445214118 (Bosch Type)

Common Rail Pressure Relief Valve 1110010015 / F00R000741 / 0445214118

This is a Bosch type pressure relief valve, also called a pressure limiting valve, that mounts on the common rail. Its job is to open and dump fuel back to the tank when rail pressure exceeds the set threshold, protecting the rail, injectors and high-pressure pump from overpressure.

Where This Valve Is Used

• Application: common rail fuel systems on Renault, Ford, Honda, Komatsu excavator and various diesel engines
• Function: limits maximum rail pressure and protects the common rail system from overpressure
• Brand type: Bosch

Valve Specifications

Why the Relief Valve Is Replaced

Once a relief valve has opened, it may not reseat perfectly. A valve that leaks internally lets rail pressure fall away, which shows up as hard starting, poor power and pressure-deviation faults. A valve that sticks closed removes the overpressure protection entirely, so it is normally replaced rather than cleaned and reused.

Fitting Notes

• Confirm the number on the original valve before ordering; relief valves are matched to the rail and system.
• Depressurise the rail before removal and use new sealing washers on refitting.
• Check for the underlying cause of the overpressure event, such as a blocked return line.

Supply and Service

MOQ 1 piece. Neutral, original or customised packaging available.