Fitment:
Compatible with Scania Euro 6 trucks equipped with SCR emission systems.
OEM reference numbers: 5WK97400, 2294290.
Installed in the pre-catalyst (before catalyst) position in the exhaust aftertreatment system.
Used for NOx monitoring to support SCR (AdBlue/DEF) emission control operation.
Applicable to Scania heavy-duty commercial diesel platforms.

FAQ:

Q1: How do I confirm compatibility?
A1: Match OEM numbers 5WK97400 or 2294290 with your original sensor and verify connector type and cable length.

Q2: Where is this NOx sensor installed?
A2: It is installed before the catalyst in the exhaust system (pre-catalyst / upstream position).

Q3: What are common failure symptoms?
A3: Engine warning light, SCR system fault, incorrect NOx readings, or reduced engine performance.

Q4: Is this sensor used for Euro 6 systems only?
A4: It is primarily designed for Scania Euro 6 emission systems with SCR technology.

Q5: Do Scania trucks use both upstream and downstream NOx sensors?
A5: Yes, most SCR systems use both pre-catalyst and post-catalyst NOx sensors.