WJIECO 68210084AA NOx Sensor. Cross references 5WK96742B, 2872948, A034M378. 12V downstream post-SCR NOx Sensor for Ram 2500 3500 4500 5500 6.7L Cummins Turbo Diesel 2013–2018. Plug & play direct replacement.

68210084AA NOx Sensor Overview

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The 68210084AA NOx Sensor manufactured by WJIECO is the downstream post-SCR NOx sensor for Ram heavy-duty trucks equipped with 6.7L Cummins turbo diesel from 2013 to 2018. 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.

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 Cummins truck owners run into intermittent faults during towing, hauling heavy loads and highway cruising; these are typical symptoms of a degraded NOx sensing element. This sensor cross-references interchange numbers: 68210084AA, 5WK96742B, 2872948, A034M378 for fast lookup by repair shops and diesel technicians across the USA.

H2: OEM-Grade Construction & Strict Factory Testing

Our 68210084AA 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 heavy hauling, off-road and highway use. 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 68210084AA 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: 6.7L I6 Cummins Turbo Diesel (2013–2018)

• Ram 2500 (2013–2018) 6.7 Cummins
• Ram 3500 (2013–2018) 6.7 Cummins
• Ram 4500 (2013–2018) 6.7 Cummins
• Ram 5500 (2013–2018) 6.7 Cummins

Important note: This is the 12V DOWNSTREAM POST-SCR POSITION 2 NOx Sensor. NOT compatible with upstream pre-SCR NOx sensor, NOT compatible with Jeep Grand Cherokee EcoDiesel, NOT compatible with Ram ProMaster 3.0 diesel vans. 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 68210084AA NOx Sensor

Replacing your faulty downstream post-SCR NOx Sensor with the WJIECO 68210084AA 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 Cummins truck owners, fleet operators and heavy haulers, 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 heavy-duty truck fleets and professional diesel repair facilities.

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

This 68210084AA NOx Sensor is a true direct-fit replacement for the factory downstream post-SCR NOx Sensor on 2013–2018 Ram 2500/3500/4500/5500 6.7 Cummins. 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 68210084AA NOx Sensor is fully bench tested before shipment. If you need a reliable downstream NOx Sensor compatible with 68210084AA 5WK96742B for Ram 6.7 Cummins heavy-duty trucks, this WJIECO NOx Sensor will return your SCR emissions system to normal operation.

Product Tags

68210084AA, 5WK96742B, 2872948, A034M378, NOx Sensor, Nitrogen Oxide Sensor, downstream post-scr NOx sensor, Ram 6.7 Cummins NOx sensor, Ram 2500 3500 4500 5500 NOx 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.