Dorman 904-309 Fuel Injection Fuel Rail Pressure Sensor

Dorman 904-309 Fuel Rail Pressure Sensor

Dorman 904-309 is a fuel injection fuel rail pressure sensor built to match the fit and function of the original sensor on specified vehicles. It is engineered for durable operation and consistent pressure signal performance in the fuel system.

Key Features

• Direct-fit, specific application sensor for selected Dodge Ram 2500 and Ram 3500 trucks, plus Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 applications
• Blade terminal design with a 3-terminal male connector and square connector shape
• 18 mm thread diameter with 10 mm thread length for OE-style mounting
• No wire harness included and no mounting bracket included
• Cross-reference part numbers include Standard Ignition FPS1 and FPS29 for the same application

Detailed Description

This fuel rail pressure sensor is designed for direct replacement on specific fuel injection systems where accurate rail pressure feedback is required. Dorman 904-309 supports proper sensor-to-connector fitment with a square male connector, blade terminals, and a specific-fit design that aligns with the original equipment layout. It is a practical replacement choice for 2003-2007 Dodge Ram 2500, 2003-2006 Dodge Ram 3500, 2004-2005 Chevrolet Silverado 2500 HD, 2004-2005 Chevrolet Silverado 3500, 2004-2005 GMC Sierra 2500 HD, and 2004-2005 GMC Sierra 3500 applications.

This part number, 904-309, is also referenced by several interchange numbers, including 5S2091 and SU3355, which helps when matching the correct fuel rail pressure sensor for the vehicle application.

What It Helps Fix

• Fuel rail pressure signal errors
• Hard starting caused by incorrect rail pressure readings
• Driveability issues related to unstable fuel pressure feedback
• Check engine light conditions tied to fuel pressure sensor faults
• Replacement needs after sensor wear or electrical connector failure

Installation Notes and Tips

Verify the connector shape, terminal count, thread diameter, and thread length before installation. Confirm the vehicle application against the listed fitment for 2003-2007 Dodge Ram 2500, 2003-2006 Dodge Ram 3500, 2004-2005 Chevrolet Silverado 2500 HD, 2004-2005 Chevrolet Silverado 3500, 2004-2005 GMC Sierra 2500 HD, and 2004-2005 GMC Sierra 3500. Dorman 904-309 installs as a specific-fit replacement and does not include a wire harness or mounting bracket.

Quality Assurance

Dorman designs this sensor to match original fit and function on the specified vehicles and builds it for durable, reliable performance in fuel system service.