68146136AC NOx Sensor WJIECO Upstream Pre-SCR Nitrogen Oxide Sensor Replacement for Jeep Grand Cherokee WK2 3.0L V6 EcoDiesel 2014-2019

68146136AC NOx Sensor Overview

The 68146136AC NOx Sensor manufactured by WJIECO is the upstream pre-SCR NOx sensor for Jeep Grand Cherokee WK2 equipped with 3.0L V6 EcoDiesel from 2014 to 2019. This pre-catalyst NOx sensor reads engine-out NOx before the SCR unit, allowing the ECM to calculate the correct DEF injection rate and keep exhaust emissions within EPA standards.

A faulty upstream NOx sensor commonly triggers DEF dosing codes, check engine light and engine derate. Common related DTCs include P20EE, P2200, P2209. Many Grand Cherokee EcoDiesel owners run into intermittent faults during highway cruising, towing and cold weather operation; these are typical symptoms of a degraded NOx sensing element. This sensor cross-references interchange numbers: 68146136AC, 0281006344, 68146136AA, 68146136AB for fast lookup by repair shops and diesel technicians across the USA.

H2: OEM-Grade Construction & Strict Factory Testing

Our 68146136AC NOx Sensor adopts a high-stability ceramic sensing chip, heavy-duty heat-resistant stainless steel probe housing and fully sealed wiring assembly with OEM matching connector. It is built to withstand sustained exhaust heat, engine vibration, rapid thermal cycling, soot buildup, plus road salt, mud and moisture during highway driving, towing and seasonal cold climates. Low-cost generic NOx sensors commonly skip long-duration high-temperature burn-in calibration, which leads to unstable readings and premature failure after short service time.

Every finished 68146136AC NOx Sensor passes a full series of factory quality validation steps: precision NOx signal calibration, high-temperature aging cycle test, waterproof seal pressure test and connector pin continuity inspection before packing. This strict QC process guarantees stable NOx readings, reliable CAN communication with the ECM and extended service life inside the harsh diesel exhaust aftertreatment environment.

H2: Vehicle Fitment

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Compatible Engine: 3.0L V6 EcoDiesel Turbo Diesel (2014–2019)

• Jeep Grand Cherokee WK2 (2014–2019) 3.0 EcoDiesel

Important note: This is the 12V UPSTREAM PRE-SCR POSITION 1 NOx Sensor. NOT compatible with downstream post-SCR NOx sensor 68146138AD, NOT compatible with Ram ProMaster 3.0 diesel vans, NOT compatible with Ram heavy-duty 6.7 Cummins trucks, NOT compatible with Jeep Wrangler JL EcoDiesel. Verify your VIN, engine, connector shape and original OEM part number before placing your order. Installing the wrong NOx Sensor will result in persistent SCR faults and derate that cannot be cleared easily.

H2: Core Benefits of 68146136AC NOx Sensor

Replacing your faulty upstream pre-SCR NOx Sensor with the WJIECO 68146136AC NOx Sensor restores accurate engine-out NOx measurement for the DEF dosing system. Reliable upstream NOx readings allow the ECM to maintain proper DEF injection rates, clear NOx and SCR related diagnostic trouble codes, remove engine power derate restrictions, and complete emissions readiness monitors required for state inspection. For Jeep Grand Cherokee EcoDiesel owners and diesel repair shops, proactive replacement prevents unexpected derate and costly roadside downtime.

Robust, factory-calibrated construction greatly reduces early failure and intermittent fault codes that plague low-cost alternatives. This aftermarket NOx Sensor delivers OEM-matching performance at a much lower price than dealership replacement parts, making it a reliable choice for US diesel SUV owners and professional diesel repair facilities.

H2: Plug-and-Play Installation, No Dealer Programming Required

This 68146136AC NOx Sensor is a true direct-fit replacement for the factory upstream pre-SCR NOx Sensor on 2014–2019 Jeep Grand Cherokee WK2 3.0 EcoDiesel. Thread size, probe length, mounting thread, connector profile and wiring pinout all match OEM specifications exactly. Remove the old faulty sensor, torque the new sensor to factory torque specs and reconnect the stock wiring harness. There is no wire cutting, harness modification or ECM flash programming needed. After installation, clear all associated diagnostic trouble codes with a diesel scan tool and perform a loaded test drive. A full drive cycle is recommended so the ECM can run its SCR self-test and reset emissions readiness status.

Every WJIECO 68146136AC NOx Sensor is fully bench tested before shipment. If you need a reliable upstream NOx Sensor compatible with 68146136AC 0281006344 for Jeep Grand Cherokee WK2 3.0 EcoDiesel, this WJIECO NOx Sensor will return your SCR emissions system to normal operation.

Product Tags

68146136AC, 0281006344, 68146136AA, 68146136AB, NOx Sensor, Nitrogen Oxide Sensor, upstream pre-scr NOx sensor, Jeep Grand Cherokee WK2 3.0 EcoDiesel NOx sensor, Grand Cherokee diesel exhaust sensor, WJIECO exhaust sensor

https://wjieco-autoparts.com/product/68067521aa-nox-sensor/

WJIECO 68067521AA NOx Sensor Durable. Cross references 5WK96684A, 68067521AB. 12V upstream pre-SCR NOx Sensor for Ram 2500 3500 4500 5500 6.7L Cummins Diesel 2011–2012. Plug & play direct replacement.