Fitment

Fits for:

• Cummins ISX / ISX15 / X15 Euro 5 / Euro 6 diesel engines
• Heavy-duty on-highway trucks (Freightliner, Kenworth, Peterbilt, International, Volvo engine swaps using Cummins platforms)
• SCR / AdBlue aftertreatment systems with Bosch/Continental NOx sensor setup
• Engine: Cummins ISX15 (EPA10 / Euro VI SCR applications depending on calibration)
• Position: NOx Sensor (commonly inlet or outlet depending on system configuration)
• OE / Cross References: 5WK96740 / 5WK96740A / 5WK96740B / 2872944 / 4326870 / 4326470 family / Dorman 904-6009

FAQ

Q1: Is 5WK96740 a Cummins or Bosch part?
A1: 5WK96740 is a Continental/Vitesco (formerly Siemens) NOx sensor reference commonly used in Cummins SCR systems. It is widely cross-referenced with Cummins OE numbers like 2872944 and 4326870.

Q2: What engines use this sensor?
A2: It is mainly used on Cummins ISX15 / X15 engines in heavy-duty trucks such as Freightliner Cascadia, Kenworth, Peterbilt, and International highway trucks.

Q3: Is this inlet or outlet sensor?
A3: It can be used as inlet or outlet depending on SCR layout. Many Cummins systems use two identical-looking sensors with different positions and harness lengths.

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