Mopar Def Pump

Mopar DEF pumps are essential components of SCR (Selective Catalytic Reduction) systems used on modern EcoDiesel engines. The pump transfers Diesel Exhaust Fluid from the DEF tank to the dosing injector, allowing the aftertreatment system to reduce NOx emissions efficiently. At Advanced Truck Parts, we supply Mopar DEF pumps designed for reliable performance in diesel-powered Ram and Jeep platforms.

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Mopar DEF Pumps for EcoDiesel SCR Systems

SCR-equipped diesel engines rely on a DEF pump to maintain proper fluid pressure and deliver Diesel Exhaust Fluid to the dosing valve. Accurate DEF delivery is necessary for emissions compliance and preventing warning lights or engine derate conditions.

Common Mopar Engine Applications

Mopar DEF pumps are commonly used on EcoDiesel engines found in light-duty diesel trucks and SUVs.

3.0L EcoDiesel engines
Ram 1500 EcoDiesel trucks
Jeep Grand Cherokee EcoDiesel
Light-duty diesel fleet vehicles

Each DEF pump is engineered to match the pressure and electronic control requirements used in the EcoDiesel SCR aftertreatment system.

Common DEF Pump Failure Symptoms

SCR or emissions system warning lights
Low DEF pressure fault codes
Engine derate or reduced power
DEF dosing system errors
Crystallized DEF buildup or pump blockage

DEF pump failures may occur due to contamination, crystallized DEF deposits, electrical issues, or internal wear. Replacing a faulty pump helps restore proper aftertreatment system operation.