Dorman 904-475 Exhaust Gas Differential Pressure Sensor

DPF Differential Pressure Sensor for Ram Diesel Applications

This Dorman exhaust gas differential pressure sensor is built to match the fit and function of the original sensor on select Ram diesel trucks. It is designed for reliable pressure signal monitoring in the diesel particulate filter system, helping maintain proper exhaust aftertreatment operation.

• Exhaust gas differential pressure sensor for DPF system monitoring
• Black rectangular housing with 2 ports
• 3 male terminals with spade-style terminal design
• Maximum pressure rating: 10
• Direct-fit replacement for select Ram 2500, Ram 3500, and Ram 4000 models
• Cross-references Standard Ignition AS628 for the same application

Fitment and Application Details

Compatible with 2011-2012 Ram 2500, 2011-2012 Ram 3500, 2011-2012 Ram 4000, 2007-2010 Dodge Ram 2500, and 2007-2010 Dodge Ram 3500. Dorman 904-475 is a direct replacement for the original exhaust gas differential pressure sensor used on these vehicles, making it a practical choice when servicing the DPF pressure monitoring circuit.

Part number 904-475 is also referenced by OE-style interchange numbers 5149229AA and EC2012.

Common Symptoms This Sensor Can Address

• Fault codes related to DPF differential pressure readings
• Incorrect exhaust pressure signal data to the engine control system
• Reduced diesel particulate filter monitoring accuracy
• Check engine light concerns tied to exhaust pressure sensor failure
• Driveability issues caused by a faulty pressure sensor signal

Installation Notes and Tips

Verify connector style, terminal count, and port layout before installation. This sensor uses a male 3-terminal configuration with a rectangular body and two ports, so matching the original part on your Ram diesel truck is important for proper fitment. Inspect the surrounding pressure lines and electrical connector for damage or contamination during replacement.

Quality Assurance

Dorman engineers this sensor to match the original part’s fit and function on specified vehicles, with a focus on dependable performance and durability in exhaust system service. Part number 904-475 is built for direct replacement use on the listed Ram applications.