Fitment

Fits for:

• Ram 2500 / 3500 / 4500 / 5500 (select 6.7L Cummins diesel SCR systems)
• Ram heavy-duty trucks (2018–2022 model years where equipped with this emissions configuration)
• Engine: Diesel emissions SCR / AdBlue system applications
• Position: Exhaust NOx sensor (inlet or outlet depending on configuration)
• OE Number: 68307226AA (also supersedes 68307226AB / 68307226AC in some applications)

FAQ

Q1: Is this compatible with all Ram diesel trucks?
A1: No, compatibility depends on model year, engine calibration, and SCR system setup.

Q2: Where is it installed?
A2: It is installed in the exhaust system to measure nitrogen oxide levels for SCR emissions control.

Q3: Are these part numbers interchangeable?
A3: Yes, AA/AB/AC revisions are used across different production updates depending on configuration.

Q4: What does this sensor do?
A4: It monitors nitrogen oxide concentration in the exhaust system to support SCR dosing and emissions control operation.