Product Overview
Cummins 4326873 2872948 5289662 Inlet NOx Sensor
Replace a failed inlet NOx sensor with this OEM-manufactured replacement for Cummins 4326873, 2872948 and 5289662. Designed for compatible medium- and heavy-duty applications using Cummins ISB, QSB, ISC and ISL engines, this Skyline SNX Series upstream NOx sensor is manufactured by the same manufacturer as the original equipment sensor. It delivers OEM manufacturing quality, Made in the USA construction and dependable fitment at an aftermarket price.
4326873 2872948 5289662 NOx Sensor Cross References
| Brand / Manufacturer | Part Number |
|---|---|
| Cummins OEM | 4326873, 4326873NX, 4326873RX, 4326873CUM |
| Cummins OEM | 2872948, 2872948NX, 2872948RX, 2872948CUM |
| Cummins OEM | 5289662, 5289662NX, 5289662RX, 5289662CUM |
| Cummins OEM | A045S170 |
| Cummins OEM | A034M378 |
| Cummins OEM | 5486591, 5486591NX, 5486591RX, 5486591CUM |
| Continental | 5WK9 6742B, 5WK96742B |
| Dorman | 904-6011 |
| Dinex | 5EL004 |
| Global Emission Systems | SENN-0024XF |
| MallenTech | N47209 |
| Skyline | SNX004 |
OEM Manufactured – Plain White Box, OEM on the Inside
Skyline SNX Series NOx sensors are OEM manufactured, meaning they are produced by the same manufacturer as the original equipment sensor. You receive an OEM-manufactured sensor without paying for OEM-branded packaging.
Plain white box on the outside. OEM on the inside.
This provides the fit, construction and manufacturing quality expected from an OEM sensor while delivering OEM quality at an aftermarket price.
4326873 2872948 5289662 Inlet NOx Sensor Applications
This inlet / upstream NOx sensor is designed for compatible applications using Cummins engine families including:
- Cummins ISB 6.7L
- Cummins QSB 6.7L
- Cummins ISC
- Cummins ISL 8.9L
Compatible truck, bus and vocational applications may include:
- IC Corp. buses and commercial vehicles
- International trucks
- Thomas buses
- Blue Bird buses
- Capacity of Texas vocational vehicles
- Freightliner trucks
- Gillig buses
The sensor is installed in the inlet / upstream position of the exhaust aftertreatment system. High-priority OEM replacement numbers include 4326873, 2872948, 5289662, A045S170, A034M378 and 5486591.
Vehicle, engine and emissions configurations can vary. Always verify the original stamped OEM part number and sensor location before ordering.
4326873 Cummins Inlet NOx Sensor Specifications
| Product Type | NOx Sensor |
|---|---|
| Sensor Location | Inlet / Upstream |
| Terminal Type | 4 Pin |
| Primary Engine Applications | Cummins ISB 6.7L, QSB 6.7L, ISC, ISL 8.9L |
| Manufacturing | OEM Manufactured |
| Country of Origin | Made in the USA |
| Skyline Part Number | SNX004 |
| Warranty | 1 Year / Unlimited Mileage |
| California Shipping | Available for sale and shipment to California |
OEM Quality NOx Sensor at an Aftermarket Price
This Skyline SNX Series inlet NOx sensor combines OEM manufacturing, Made in the USA construction and a 1-year unlimited mileage warranty with aftermarket pricing.
For compatible Cummins-powered truck, bus and vocational applications requiring an inlet or upstream NOx sensor, the Skyline SNX004 provides a premium replacement option for high-priority OEM numbers including 4326873, 2872948, 5289662, A045S170, A034M378 and 5486591.
Important: Multiple NOx sensors may be used on the same vehicle, including inlet and outlet positions. Always compare the original sensor's stamped OEM number, connector and sensor location before installation.
California Proposition 65 Warning
⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
