Mopar NOx Sensors
Mopar NOx sensors monitor nitrogen oxide levels in diesel exhaust systems and help ensure proper operation of SCR (Selective Catalytic Reduction) emissions systems. These sensors send real-time exhaust data to the engine control module so the system can regulate Diesel Exhaust Fluid dosing and maintain emissions compliance. At Advanced Truck Parts, we supply Mopar NOx sensors designed for dependable performance in EcoDiesel-powered vehicles.
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Mopar NOx Sensors in SCR Aftertreatment Systems
Modern EcoDiesel engines rely on NOx sensors to measure nitrogen oxide levels in the exhaust stream. The engine control module analyzes this information and adjusts DEF injection to ensure the SCR system reduces emissions effectively.
Most SCR systems use two sensors:
- Upstream NOx sensor positioned before the SCR catalyst
- Downstream NOx sensor positioned after the SCR catalyst
Together, these sensors help monitor SCR catalyst efficiency and confirm that emissions levels remain within regulatory limits.
Common Mopar Engine Applications
Mopar NOx sensors are widely used on light-duty diesel platforms equipped with EcoDiesel engines.
- 3.0L EcoDiesel engines
- Ram 1500 EcoDiesel trucks
- Jeep Grand Cherokee EcoDiesel
- Light-duty diesel fleet vehicles
Sensor design and connector configuration may vary depending on model year and emissions generation.
Common NOx Sensor Failure Symptoms
- Check engine or emissions system warning lights
- NOx sensor diagnostic fault codes
- Incorrect DEF dosing
- Engine derate or limited power mode
- SCR efficiency or aftertreatment faults
NOx sensors may fail due to prolonged heat exposure, exhaust contamination, damaged wiring, or internal electronic faults. Replacing a faulty sensor helps restore proper emissions monitoring and aftertreatment performance.
Verify Fitment Before You Buy
NOx sensors vary depending on engine configuration, emissions system setup, and vehicle model year. To confirm compatibility before ordering, provide:
- Vehicle year / make / model
- Engine type (3.0L EcoDiesel)
- Current NOx sensor part number
- Photos of the sensor or wiring connector if available
This information helps ensure the correct Mopar NOx sensor is selected for your vehicle.
Why Buy Mopar NOx Sensors from Advanced Truck Parts?
- Fitment verification before purchase
- Reliable emissions and aftertreatment components
- Fast shipping to reduce vehicle downtime
- Support for repair shops and diesel owners
- Competitive pricing on diesel emissions parts
