Fitment

Fits for:

• Cummins diesel engines with SCR (AdBlue / DEF) emissions systems
• Heavy-duty trucks and commercial vehicles using Cummins aftertreatment systems
• Engine platforms: ISB / ISL / ISX (depending on SCR configuration)
• Position: Exhaust NOx sensor (inlet or outlet depending on system layout)
• OE / Cross References: 4359309 / SNS0161B / 5WK96761 / A1246761 / 119557 / DN12141202 / 096.5507 / 9.2820.1 / SNS-type NOx sensor family

FAQ

Q1: Are 4359309, SNS0161B, and 5WK96761 the same sensor?
A1: Yes. 4359309 is the Cummins OE number, SNS0161B is a supplier reference, and 5WK96761 is the sensor reference used for the same NOx sensor module in SCR systems.

Q2: What vehicles use this sensor?
A2: It is commonly used on Cummins-powered heavy-duty trucks and commercial vehicles equipped with SCR (AdBlue) emissions systems, depending on OEM configuration.

Q3: Is this inlet or outlet sensor?
A3: It can be used as either inlet or outlet NOx sensor depending on the aftertreatment layout. Many Cummins systems use similar NOx sensors in multiple positions with different harness lengths.

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