Fitment

Fits for:

• Cummins EPA10 diesel engines with SCR (AdBlue / DEF) emissions system
• Heavy-duty trucks (Kenworth, Peterbilt, Freightliner, International)
• Engine platforms: ISB / ISL / ISX EPA10 SCR applications
• Position: Exhaust NOx sensor (outlet or inlet depending on SCR layout)
• OE / Cross References: 2871974 / 2894943 / 4984912 / 4326864 / 1710806 / 5WK96672 / 5WK96672A / SNS672A / A045S158 / A2C95992900-01 / 5WK9 6672A family

FAQ

Q1: Are 2871974 and 5WK96672A the same sensor?
A1: Yes. 2871974 is the Cummins OE number, and 5WK96672A is the matching NOx sensor reference used in EPA10 SCR diesel systems. (finditparts.com)

Q2: What vehicles use this sensor?
A2: It is commonly used on Cummins-powered heavy-duty trucks such as Kenworth, Peterbilt, Freightliner, and International with SCR (AdBlue) systems. (finditparts.com)

Q3: Is this inlet or outlet sensor?
A3: It can be used as either inlet or outlet NOx sensor depending on exhaust configuration and SCR system design.

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