FITMENT:
Compatible with heavy-duty diesel trucks using Cummins Inc. engines with SCR emission systems, including:

• Peterbilt 579
• Kenworth T680
• International Trucks LoneStar

OEM reference number: 5WK96764B.
Used in diesel exhaust aftertreatment system for NOx monitoring (DEF/AdBlue SCR system).
Installed in exhaust system (inlet or outlet position depending on SCR configuration).
Fitment must be confirmed by OEM number and engine/emissions layout before installation.

FUNCTION:

• Measures NOx levels in exhaust gas
• Sends data to ECU/ACM for SCR dosing control
• Optimizes AdBlue injection for emissions compliance
• Helps prevent engine derate and SCR system faults

INSTALLATION POSITION:

• SCR system upstream or downstream sensor (depending on OEM configuration)
• Mounted on exhaust piping between DPF and SCR catalyst or after SCR unit

FAQ:

Q1: Is this inlet or outlet sensor?
A1: It can be either inlet or outlet depending on Cummins SCR setup. OEM match is required.

Q2: What engines does it fit?
A2: Commonly used on Cummins ISX15 / X15 engines in Peterbilt, Kenworth, and International trucks.

Q3: What are symptoms of failure?
A3: SCR warning light, engine derate, incorrect NOx readings, or DEF system faults.

Q4: Is 5WK96764B interchangeable across all trucks?
A4: No, calibration and harness differences vary by OEM application.

Q5: Does installation require programming?
A5: Some vehicles require SCR reset or ECM adaptation after replacement.