Standard Ignition DFI3 Diesel Exhaust Fluid (DEF) Injection Nozzle

DEF Injection Nozzle for Ram Diesel Applications

Standard Ignition DFI3 is a diesel exhaust fluid injection nozzle built for OE fit, form, and function on select Ram heavy-duty diesel trucks. It is engineered for precise DEF spray delivery to support proper exhaust aftertreatment operation in 2013-2022 Ram 2500 and 2013-2022 Ram 3500 applications.

Key Features

• Clear finish with a female connector and male terminals for direct electrical connection
• Laser-drilled spray holes for controlled DEF atomization
• Precision wound and trimmed solenoid windings for efficient computer-commanded delivery
• High-grade construction designed to withstand extreme exhaust heat
• OE-style fit, form, and function for Ram 2500 and Ram 3500 diesel exhaust fluid systems

Detailed Description

The Standard Ignition DFI3 diesel exhaust fluid injector is designed for select Ram diesel exhaust aftertreatment systems where accurate DEF dosing is critical. Its solenoid design supports responsive electronic control, while the laser-drilled spray pattern helps prepare fluid for consistent injection into the exhaust stream. This part cross-references Spectra Premium EM1304IJ for the same application. If you are replacing a DEF injector on a Ram 2500 or Ram 3500, DFI3 provides a direct-fit service part for the listed model years.

What It Helps Address

• DEF injector fault codes related to poor spray or delivery
• Uneven diesel exhaust fluid atomization in the exhaust stream
• Aftertreatment performance issues tied to injector wear
• Heat-related injector degradation in high-temperature exhaust environments
• Electrical response problems from worn solenoid windings

Installation Notes and Tips

Verify connector style, terminal layout, and vehicle application before installation. This part uses a female connector with two male terminals and is listed for N/A position fitment on Ram 2500 and Ram 3500 models. Confirm the original injector part number and inspect the DEF system for contamination or heat damage that could affect the new component. Standard Ignition DFI3 is also referenced by part numbers 2-110003, 800-65003, 4627241AA, and DEF3.

Quality Assurance

Standard Ignition manufactures this DEF injector to OE fit, form, and function specifications, with materials selected for exhaust heat resistance and spray performance consistency.