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.)
• Medium-duty and bus applications using SCR / AdBlue aftertreatment systems
• Engine: Cummins ISB6.7 / ISL9 / ISX15 SCR platforms (depending on OEM calibration)
• Position: Exhaust NOx sensor (inlet or outlet depending on SCR layout)
• OE / Cross References: 4326476 / 5WK96752A / A044C669 / 4326476NX / 4326476RX / SNS3012 family equivalent

FAQ

Q1: Are 4326476, 5WK96752A, and A044C669 the same sensor?
A1: Yes. 4326476 is the Cummins OE number, 5WK96752A is the Continental/Vitesco reference, and A044C669 is an aftermarket cross-reference for the same NOx sensor used in SCR systems.

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

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

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