Fitment

Fits for:

• Cummins ISX / ISX12 / ISX15 diesel engines
• Heavy-duty trucks: Freightliner, Kenworth, Peterbilt, International, Volvo (Cummins engine applications)
• Engine: Cummins EPA10 / SCR aftertreatment systems
• Position: Exhaust NOx sensor (inlet or outlet depending on SCR configuration)
• OE / Cross References: 4326872 / 5WK96749 / 5WK96749A / 5WK96749B / A045S169 / 2872942 / SNS-type NOx sensor family

FAQ

Q1: Are 4326872 and 5WK96749 the same sensor?
A1: Yes. 4326872 is the Cummins OE number, and 5WK96749 is the Continental/Vitesco reference used for the same NOx sensor module in SCR systems.

Q2: What engines use this sensor?
A2: It is commonly used on Cummins ISX and ISX15 engines in EPA10 SCR-equipped heavy-duty trucks such as Freightliner, Kenworth, and Peterbilt.

Q3: Is this inlet or outlet sensor?
A3: It is used in SCR systems and can be configured as inlet or outlet depending on exhaust layout. In ISX applications, it is most commonly an outlet NOx sensor.

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 (DEF) dosing, ensuring emissions compliance and SCR efficiency.