Product Overview
Cummins 2894941 3687334 Inlet NOx Sensor by Nernex
The Nernex 20.220338 NOx Sensor is a direct-fit aftermarket inlet NOx sensor for applications using Cummins 2894941 and 3687334. Designed for compatible EPA10 Cummins ISX15 exhaust aftertreatment systems, this upstream NOx sensor provides accurate exhaust-gas measurement used to support proper SCR operation, DEF/urea dosing control, and continuous emissions-system monitoring.
Cummins 2894941 3687334 NOx Sensor Interchange & Cross References
| Manufacturer / Brand | Part Numbers |
|---|---|
| Cummins | 2894941, 2894941NX, 2894941RX, 2894941CUM |
| Cummins | 3687334, 3687334NX, 3687334RX |
| Cummins | 2872081, 2872081NX, 2872081RX, 2872027 |
| Continental / VDO | 5WK96673A, 5WK9 6673A |
| Skyline | ANX017 |
| Dinex | 5EL009 |
| FSS Emission Products | 87334-FSS |
| Dorman | 904-6019 |
| Automann | 577.90651 |
| Automann | 577.90554 |
| MallenTech | N47202 |
| Nernex | 20.220338 |
Nernex NOx Sensor Technology
Nernex develops emissions-sensing products around the precise measurement and control required by modern diesel exhaust aftertreatment systems. Nernex NOx sensor electronics and software are designed to provide accurate exhaust-gas data to the vehicle control system, helping regulate DEF/urea dosing and support effective Selective Catalytic Reduction (SCR) of NOx emissions.
As an inlet / upstream / pre-SCR NOx sensor, the Nernex 20.220338 measures NOx concentration before SCR treatment. This information helps the vehicle's aftertreatment controls determine appropriate DEF dosing and continuously manage emissions performance during vehicle operation.
Nernex 20.220338 NOx Sensor Specifications
| Manufacturer | Nernex |
| Part Number | 20.220338 |
| Product Type | Aftermarket NOx Sensor |
| Sensor Position | Inlet / Upstream / Pre-SCR |
| Voltage | 12 Volt |
| Terminal Type | 4 Pin |
| Emissions Application | EPA10 |
| System Function | NOx measurement, DEF dosing control and SCR aftertreatment monitoring |
| Warranty | 2 Years / Unlimited Miles |
| California Availability | Available for sale and shipment to California |
Cummins ISX15 Engine Applications
The Nernex 20.220338 inlet NOx sensor is intended for compatible heavy-duty vehicles equipped with the matching Cummins EPA10 exhaust aftertreatment configuration.
Compatible Cummins Engine: ISX15 14.9L
Heavy-Duty Truck & Vocational Applications
Freightliner: Argosy, Cascadia, Columbia, Coronado, FLD120, FLD132
International: 5500i, 5600i, 5900i, 9400i SBA, 9900i, LoneStar, ProStar
Kenworth: C500, T2000, T660, T700, T800, W900
Peterbilt: 320, 365, 367, 384, 386, 387, 388, 389, 587
Volvo: VNL, VT
Western Star: 4900EX, 4900FA, 4900SA, 6900XD
Oshkosh: H, S
Spartan: Gladiator, K2, K3
Roadmaster Rail: S-Monocoque
Sensor Location: Inlet / Upstream / Pre-SCR NOx Sensor
Primary OEM Application Numbers: 2894941, 3687334
Direct-Fit Aftermarket NOx Sensor Replacement
The Nernex 20.220338 is intended as a direct-fit aftermarket replacement for the listed Cummins NOx sensor numbers. Before ordering, verify the original stamped sensor part number, inlet sensor position, 12-volt electrical system, 4-pin connector configuration, and vehicle or engine application. Matching 2894941 or 3687334 to the number stamped on the original sensor is the most reliable way to confirm compatibility.
Product images are for reference only. Always verify the original sensor part number, sensor location, voltage, and connector configuration before installation.
California Proposition 65 Warning: WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov.
