Fitment

Fits for:

• Cummins ISB / ISL / ISC / ISX SCR (Euro 5 / Euro 6 diesel applications depending on configuration)
• Heavy-duty on-highway trucks (Freightliner, Kenworth, Peterbilt, International, etc. with Cummins engines)
• Medium-duty and bus applications using SCR/AdBlue systems
• Engine: Cummins ISB6.7 / ISL9 / ISX15 SCR aftertreatment systems (depending on calibration)
• Position: Exhaust NOx sensor (inlet or outlet depending on SCR layout)
• OE / Cross References: 4326475 / 5WK96754A / A044C666 / 4326475NX / SNS3007 family equivalent

FAQ

Q1: Are 4326475, 5WK96754A, and A044C666 the same part?
A1: Yes. 4326475 is the Cummins OE number, 5WK96754A is the Continental/Vitesco reference, and A044C666 is an aftermarket/SNS family cross-reference for the same NOx sensor module used in SCR systems.

Q2: What engines use this sensor?
A2: It is commonly used on Cummins ISB, ISL, ISC, and ISX platforms equipped with SCR (AdBlue) emissions systems across multiple OEM truck brands.

Q3: Is this inlet or outlet sensor?
A3: It can be used in either position depending on the SCR configuration. The same sensor family is used with different harness lengths and mounting setups.

Q4: What does this sensor do?
A4: It measures nitrogen oxide (NOx) in the exhaust and sends data to the ECU to control AdBlue dosing, ensuring emissions compliance.