Description
Product Overview
The iFJF Downstream NOx Sensor 5WK96730 is a direct replacement for 2013-2018 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins ISB diesel engine. Positioned after the SCR catalyst, this sensor verifies that the DEF system is properly reducing NOx emissions. When this sensor fails, your Ram may enter limp mode with reduced power — a critical issue for towing and daily driving. This pre-calibrated, plug-and-play replacement gets you back on the road without a costly dealer service visit.
Key Features
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Direct Fit for Ram Cummins: Engineered specifically for 2013-2018 Ram 2500 and 3500 with the 6.7L Cummins ISB diesel. Downstream (post-SCR) position.
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Pre-Calibrated — No Programming: Arrives ready to install with factory calibration loaded. Clear DTCs after installation and the ECU accepts the sensor automatically — no dealer scan tool needed.
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OEM Cross-Reference: Replaces Mopar part number 68085740AA and Continental/VDO 5WK96730 with identical mechanical fit and electrical sensing performance.
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Heavy-Duty Construction: Sealed 6-pin connector resists moisture and corrosion from under-hood washing and winter road conditions. Stainless steel probe rated for sustained diesel exhaust temperatures.
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Restores Full Engine Power: A failed downstream NOx sensor commonly triggers P2200-P2203 or P229E codes along with reduced engine power / limp mode. Replacing it removes the ECU derate condition immediately after clearing codes.
Compatibility
| Make |
Model |
Engine |
Years |
| Ram |
2500 / 3500 |
6.7L Cummins ISB |
2013-2018 |
| Ram |
3500 Chassis Cab |
6.7L Cummins ISB |
2013-2018 |
| Ram |
4500 / 5500 Chassis Cab |
6.7L Cummins ISB |
2013-2018 |
Note: Verify your fault code specifies the downstream (post-SCR) sensor position. For off-road and competition use only.
Specifications
| Specification |
Details |
| Part Number |
5WK96730 |
| Mopar OE Number |
68085740AA |
| Position |
Downstream (Post-SCR) |
| Connector |
6-Pin Weather-Sealed |
| Fuel Type |
Ultra-Low Sulfur Diesel (ULSD) Only |
Why Choose iFJF
Ram dealer NOx sensor replacement typically costs $400-600 per sensor with labor. This 5WK96730 replacement offers the same sensing performance at significant savings. No programming, no dealer visit — install it in your driveway with basic hand tools and any OBD-II scan tool to clear codes. 90-day satisfaction guarantee.
Frequently Asked Questions
Q: Will this fix my P2200 / P2201 / P229E code?
A: These codes specifically indicate a downstream NOx sensor circuit or performance issue. If your scan tool confirms a downstream sensor fault (not upstream), this 5WK96730 sensor should resolve the condition. Always verify the code points to the downstream sensor before ordering.
Q: Does this sensor need to be programmed at the dealer?
A: No. The sensor arrives pre-calibrated from the factory. Install it, clear the DTCs with any standard OBD-II scan tool, and the ECU will recognize the new sensor. No dealer software subscription or VIN coding required.
Q: How can I tell upstream from downstream on my Ram?
A: The upstream sensor is before the SCR catalyst (closer to the turbocharger), downstream is after (closer to the tailpipe). Your scan tool will specify "Sensor 1" (upstream) or "Sensor 2" (downstream) in the fault code description.
Q: Why did my NOx sensor fail?
A: Common causes include coolant contamination in the exhaust from EGR cooler failure, excessive soot loading from a failing DPF, poor-quality DEF fluid, or simply normal wear at 80,000-120,000 miles. Diagnose the underlying issue to avoid repeat sensor failures.
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