The DEF injector is the nozzle that sprays diesel exhaust fluid into the exhaust ahead of the SCR catalyst. When it crystallizes, clogs or leaks, the truck throws SCR fault codes and starts down the derate path toward a speed limit, so it is not a repair to put off. This is the genuine Mopar service injector for the Cummins aftertreatment system.

Mopar Accessories 04627241AF Diesel Exhaust Fluid Injection Nozzle Features:

• Fits select Ram 2500, 3500, 4500 and 5500 Trucks with the 6.7L Cummins Turbo Diesel.
• Part of the Selective Catalytic Reduction, or UREA, aftertreatment system.
• Meters diesel exhaust fluid into the exhaust stream to reduce nitrogen oxide output.
• Supersedes 04627241AA, 04627241AB, 04627241AD and 04627241AE.
• Sold individually. Confirm the current service number by VIN before ordering.

Emissions Note:

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