68171188AB NOx Sensor WJIECO Downstream Post-SCR Nitrogen Oxide Sensor Replacement for Ram 1500 3.0L V6 EcoDiesel 2017-2019

68171188AB NOx Sensor Overview

The 68171188AB NOx Sensor manufactured by WJIECO is the downstream post-SCR NOx sensor for Ram 1500 pickup equipped with 3.0L V6 EcoDiesel from 2017 to 2019. This post-catalyst NOx sensor reads NOx levels exiting the SCR, so the ECM can evaluate SCR efficiency and keep exhaust emissions within EPA standards.

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A faulty downstream NOx sensor commonly triggers SCR efficiency codes, check engine light and engine derate. Common related DTCs include P20EE, P2201, P220A. Many Ram 1500 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: 68171188AB, 0281006646, 68171188AA, 68250214AA, 68250214AB for fast lookup by repair shops and diesel technicians across the USA.

H2: OEM-Grade Construction & Strict Factory Testing

Our 68171188AB 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 68171188AB 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

Compatible Engine: 3.0L V6 EcoDiesel Turbo Diesel (2017–2019)

• Ram 1500 (2017–2019) 3.0 EcoDiesel

Important note: This is the 12V DOWNSTREAM POST-SCR POSITION 2 NOx Sensor. NOT compatible with upstream pre-SCR NOx sensor 68171187AB, NOT compatible with 2014–2016 Ram 1500 downstream NOx sensor 68171188AA, NOT compatible with Jeep Grand Cherokee EcoDiesel, NOT compatible with Ram ProMaster 3.0 diesel vans, NOT compatible with Ram heavy-duty 6.7 Cummins trucks. 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 68171188AB NOx Sensor

Replacing your faulty downstream post-SCR NOx Sensor with the WJIECO 68171188AB NOx Sensor restores accurate post-SCR NOx monitoring for the emissions control system. Reliable downstream NOx readings allow the ECM to verify SCR performance, clear NOx and SCR related diagnostic trouble codes, remove engine power derate restrictions, and complete emissions readiness monitors required for state inspection. For Ram 1500 EcoDiesel pickup 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 pickup truck owners and professional diesel repair facilities.

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

This 68171188AB NOx Sensor is a true direct-fit replacement for the factory downstream post-SCR NOx Sensor on 2017–2019 Ram 1500 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 68171188AB NOx Sensor is fully bench tested before shipment. If you need a reliable downstream NOx Sensor compatible with 68171188AB, 0281006646 for Ram 1500 3.0 EcoDiesel, this WJIECO NOx Sensor will return your SCR emissions system to normal operation.

Product Tags

68171188AB, 0281006646, 68171188AA, 68250214AA, 68250214AB, NOx Sensor, Nitrogen Oxide Sensor, downstream post-scr NOx sensor, Ram 1500 3.0 EcoDiesel NOx sensor, Ram 1500 diesel exhaust sensor, WJIECO exhaust sensor

https://wjieco-autoparts.com/product/68146136ad-nox-sensor/

WJIECO 68146136AD NOx Sensor. Cross references Bosch 0281006643, 68146136AB. 12V upstream pre-SCR NOx Sensor for Jeep Grand Cherokee WK2 3.0L EcoDiesel 2014–2019. Plug & play direct replacement.