Product Review

Replacing OE#:
Bosch 0 928 400 666;
Cummins 4932457

For Fitment:
2003-2007 5.9L Dodge Ram Cummins Diesel

This part is also named:
MPROP
FCA
Injection Pressure Regulator
Fuel Pressure Regulator
Fuel Control Actuator
Measuring Unit

This part controls the output pressure of the high pressure CP3 fuel pump. When it fails, the actual fuel pressure will NOT match the desired or commanded fuel pressure as set by the engine computer. Actual and commanded pressure can be monitored on a scan tool and compared. The most common symptom of failure is varying / unstable idle.

The FCA is mounted on the back of the CP3 injection pump and is attached by three T-25 Torx head screws.

Package Include: 1 x Diesel Fuel Regulator as pictured