3949988 Fuel Rail Pressure Sensor for Dodge Ram 2500 3500 5.9 Cummins Diesel

This fuel rail pressure sensor measures pressure in a compatible diesel common rail injection system. It converts the measured pressure into an electrical signal used by the engine control unit to monitor fuel delivery and manage rail-pressure and injection control. Correct selection requires agreement with the original sensor reference, electrical connector, threaded rail connection and engine configuration.

Supplied as a new aftermarket replacement single sensor, it is intended for the documented diesel vehicle applications. The application table preserves the year-specific engine options observed in the catalogue, including separately recorded power variants. A power rating is included only where it is explicitly available for that vehicle and year. Related service references are provided for component identification, while broader industrial engine claims are kept outside the verified vehicle matrix. A one-year warranty is provided.