Cummins 3949988 5.9L Fuel Rail Pressure Sensor

This Cummins 3949988 High-Pressure Fuel Rail Pressure Sensor for the 2003 to 2007 Dodge Ram 2500 and 3500 diesel trucks with the 5.9L Cummins engine.

In stock
Cummins 3949988

 NOTE: Cummins Parts Are A Non-Returnable Item. Please make sure you have ordered the correct part for your Cummins diesel engine!

Special Price $257.85 Regular Price $297.85

OEM Cummins Fuel Rail Pressure Sensor For Dodge Ram 5.9L Cummins Diesel

This Cummins 3949988 Pressure Sensor Applications:

  • 2003 to 2007 Dodge Ram 2500 Diesel.
  • 2003 to 2007 Dodge Ram 3500 Diesel.
  • 2003 to 2009 5.9L Cummins ISB Series Engines.

What does this Cummins 5.9L Fuel Rail High Pressure Sensor Do?

  • This Cummins 3949988 fuel rail high-pressure sensor senses the amount of fuel in the fuel rail by reading the internal pressure of the rail.
  • The pressure sensor then sends an electronic message to the Power Control Module PCM telling it precisely how much fuel needs to be released into the engine.
  • The fuel rail pressure sensor measures the pressure of the fuel being supplied to the fuel injectors.
  • This pressure signal is used by the PCM to adjust the fuel injector pulse width and duration while metering fuel to each cylinder during the combustion cycle.

Symptoms of a Faulty Cummins 3949988 Fuel Rail Pressure Sensor:

  • Difficulty Starting the engine.
  • Engine losses power.
  • Rough erratic engine operation.
  • Engine loses power and then regains power.
  • P0193 Fuel Pressure Sensor Circuit High Input Code Displayed.

This fuel rail pressure sensor is an OEM Cummins Part covered by the Manufacturers Two Year Warranty.

Product Application
2003 to 2007 Dodge Ram 2500 and 3500 with Cummins 5.9L
Item Number
Cummins 3949988
Manufacturer Part No
Cummins 3949988
2500, 3500, 4500, 5500
2003, 2004, 2005, 2006, 2007
Special Price
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