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files/12_d5f8931d-78ee-4478-b58e-05f7dcabfc5b.jpg
Fitment
GM diesel vehicles with SCR AdBlue Euro 5 Euro 6 emission system including
- Chevrolet Silverado 2500HD 6.6L Duramax diesel (2010–2014)
- Chevrolet Silverado 3500HD 6.6L Duramax diesel
- Chevrolet Express 2500 6.6L diesel
- Chevrolet Express 3500 6.6L diesel
- GMC Sierra 2500HD 6.6L Duramax diesel
- GMC Sierra 3500HD 6.6L Duramax diesel
- GMC Savana 2500 / 3500 6.6L diesel
- Selected GM Duramax LML / LGH SCR diesel systems
OE reference
12638377
5WK96631B
12642310 (related variant reference)
12622451 (cross reference in some catalog listings)
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 SCR Position 1 (upstream NOx sensor before SCR catalyst)
Are all 12638377 sensors interchangeable
No GM NOx sensors are ECU coded and must match exact OE number and calibration version
What system does it work with
SCR Selective Catalytic Reduction system using AdBlue injection for 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
ASHENG
NOx Sensor GM Chevrolet GMC Opel Vauxhall 12638377 5WK96631B Nitrogen Oxide Sensor SCR Diesel
- Regular price
- $159.00
Fitment
GM diesel vehicles with SCR AdBlue Euro 5 Euro 6 emission system including
- Chevrolet Silverado 2500HD 6.6L Duramax diesel (2010–2014)
- Chevrolet Silverado 3500HD 6.6L Duramax diesel
- Chevrolet Express 2500 6.6L diesel
- Chevrolet Express 3500 6.6L diesel
- GMC Sierra 2500HD 6.6L Duramax diesel
- GMC Sierra 3500HD 6.6L Duramax diesel
- GMC Savana 2500 / 3500 6.6L diesel
- Selected GM Duramax LML / LGH SCR diesel systems
OE reference
12638377
5WK96631B
12642310 (related variant reference)
12622451 (cross reference in some catalog listings)
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 SCR Position 1 (upstream NOx sensor before SCR catalyst)
Are all 12638377 sensors interchangeable
No GM NOx sensors are ECU coded and must match exact OE number and calibration version
What system does it work with
SCR Selective Catalytic Reduction system using AdBlue injection for 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
- Regular price
- $159.00
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