Nitrogen Oxide / NOx Sensor ~ Outlet | Cummins 2894944 / 2872236 | FleetRun FR-AFTR549

Upgrade or replace the NOx sensor in your semi trucks, big rigs, and heavy-duty commercial vehicles with the FleetRun FR-AFTR549 Nitrogen Oxide (NOx) Sensor, a precision aftermarket alternative for Cummins part numbers 2894944 / 2872236. This critical aftertreatment sensor monitors nitrogen oxide levels in your exhaust stream, allowing your engine control unit to correctly manage emissions, DEF dosing, and avoid derating or faults.

Built for tractor trailers, Class 8 trucks, and commercial fleet vehicles, the FR-AFTR549 is engineered to endure high heat, vibration, and harsh exhaust conditions. If your NOx sensor fails, you risk emission faults, reduced engine performance, or even limp mode on the road. This sensor restores accurate NOx reading, helping maintain your diesel engine’s emission compliance and performance under load.

✅ Direct replacement for Cummins 2894944 / 2872236
✅ Designed for use in semi trucks, big rigs, and heavy-duty commercial fleets
✅ Essential for NOx monitoring and aftertreatment system function
✅ Rugged construction ready for long-haul, high-heat, high-vibration applications
✅ Backed by warranty, free shipping, fast delivery, plus FleetRun customer service

Keep your cargo trucks, commercial fleets, and semi rigs running clean, compliant, and efficient with the FleetRun FR-AFTR549 NOx Sensor — a smart investment in uptime and emissions health.