Standard Ignition FIR23 Diesel Fuel Injector Rail

Diesel fuel rail for Ram 2500 and 3500

The Standard Ignition FIR23 is a diesel fuel injector rail assembly with sensors for select Ram heavy-duty trucks. It is built for 2019-2020 Ram 2500 and 2019-2020 Ram 3500 applications and includes fittings for a direct replacement-style service job.

Key features

• Fuel rail assembly with sensors included
• Diesel fuel injection application
• Diesel injection injector rail for fuel delivery service
• Fittings included for installation
• No fuel injectors included
• No gasket or seal included

Application details

Standard Ignition FIR23 is a diesel fuel injector rail used in the fuel injection system to distribute fuel to the injectors and support rail pressure monitoring through the integrated sensors. This part cross-references DFR305 and IR23 for the same application. Compatible With 2019-2020 Ram 2500 and 2019-2020 Ram 3500 diesel fuel system service, FIR23 is a direct-fit option for trucks that need a replacement rail assembly with sensor provisions.

Common issues this part may address

• Fuel rail damage or corrosion
• Sensor-related rail replacement needs
• Fuel delivery irregularities at the injector rail
• Service replacement after leak diagnosis at the rail assembly
• Restoration of proper diesel fuel rail routing and connection points

Installation notes and tips

Verify the vehicle year, model, and diesel fuel system configuration before installation. Because a gasket or seal is not included, inspect the sealing surfaces and replace any required seals during service. Confirm all fittings are properly seated and follow factory service procedures for rail pressure relief, connector handling, and leak checks after installation.

Quality assurance

Standard Ignition supplies replacement fuel system components for service applications, and FIR23 is listed with OE-style interchange references for matching fitment. Confirm part number FIR23 against the original rail assembly before ordering.