Fitment

Chevrolet / GMC diesel vehicles with SCR AdBlue Euro 5 Euro 6 emission system including

• Chevrolet Cruze 2.0L Diesel (2014 model applications)
• Chevrolet Orlando 2.0L Diesel (selected versions)
• Opel / Vauxhall GM diesel SCR platforms (selected applications)
• GM light diesel SCR emission systems using Bosch/Continental NOx module

OE reference
12662658
5WK96735A
9.3742.1
12641556 (related variant reference)

FAQ

What is this NOx sensor used for

It measures nitrogen oxide levels in diesel exhaust gas and sends data to ECU for SCR AdBlue emission control system

Is this inlet or outlet sensor

It is commonly used as NOx Position 1 (upstream) sensor depending on SCR system layout

Are 12662658 and 5WK96735A interchangeable

Yes, 5WK96735A is the Continental OEM reference corresponding to GM 12662658

What system does it work with

SCR Selective Catalytic Reduction system using AdBlue injection for Euro 5 / Euro 6 diesel emission compliance

What are common failure symptoms

Engine warning light SCR AdBlue fault reduced power limp mode NOx sensor communication error emission efficiency faults