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Upstream NOx Sensor 68146136AD For Jeep Grand Cherokee 3.0L EcoDiesel V6 Pre‑SCR Monitoring
| Part Number | 68146136AD |
| Type | Nitrogen Oxide (NOx) Sensor‑Upstream / Front |
| Position | Exhaust‑Before the SCR Catalyst |
| Function | Monitors pre‑catalyst NOx concentration for DEF control |
| Condition | 100% Brand New |
| Package Includes | 1 × NOx Sensor |
| Installation Suggestion | Professional installation highly recommended |
This brand‑new Nitrogen Oxide (NOx) Sensor, part number 68146136AD, is engineered for the upstream position in the exhaust aftertreatment system of select Jeep Grand Cherokee models (2015, 2018‑2019) equipped with the 3.0L EcoDiesel V6 engine. Mounted before the SCR catalyst, it measures raw NOx levels to enable precise Diesel Exhaust Fluid (DEF) dosing‑ensuring optimal emissions performance and compliance with EPA standards.
Common Symptoms of a Faulty Upstream NOx Sensor: Check Engine Light with codes: P2201, P2202, P2203, U0423, "Service Emissions System" or "DEF Quality Poor" warnings, excessive DEF consumption or incorrect dosing, failed emissions inspection, reduced engine performance or unnecessary regeneration cycles.
Installation Best Practices: Always wear clean gloves‑never touch the ceramic sensing element (oil contamination causes failure). Clean exhaust threads thoroughly before installation‑carbon buildup prevents proper sealing. Torque to specification (~35‑45 ft‑lbs)‑do not use an impact wrench. After installation, perform a short drive cycle to allow the PCM to relearn sensor values.
A failing upstream NOx sensor can disrupt your EcoDiesel’s emissions system, trigger false DEF faults, or even force the vehicle into limp mode. Replace it with this high‑quality, direct‑fit sensor to restore full functionality and avoid costly downtime. Please confirm your vehicle has the 3.0L EcoDiesel engine and that your original sensor matches 68146136AD. If unsure, send us your 17‑digit VIN via eBay Messages‑we’ll verify compatibility before you order!
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5. Domestic shipping is within the 48 Contiguous States of United States, the delivery time is between 2 and 8 days. Items will be shipped by UPS, USPS or Fedex within 3 business day after receiving full payment.
6. International shipping is from China, the delivery time is between 10 and 30 working days.
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