Dorman 904-421 Nitrogen Oxide Exhaust Sensor for Select Chevrolet/GMC Models

This NOx sensor has been made to match the original equipment sensor on certain vehicle years, makes and models, properly restoring nitrogen oxide detection to comply with emissions regulations. Vehicle model years this part fits: Chevrolet Express 2500: 2010, 2011, 2012, 2013, 2014 Chevrolet Express 3500: 2010, 2011, 2012, 2013, 2014 Chevrolet Express 4500: 2010, 2011, 2012, 2013, 2014 Chevrolet Silverado 2500 HD: 2011, 2012, 2013, 2014 Chevrolet Silverado 3500 HD: 2011, 2012, 2013, 2014 GMC Savana 2500: 2010, 2011, 2012, 2013, 2014 GMC Savana 3500: 2010, 2011, 2012, 2013, 2014 GMC Savana 4500: 2010, 2011, 2012, 2013, 2014 GMC Sierra 2500 HD: 2011, 2012, 2013, 2014 GMC Sierra 3500 HD: 2011, 2012, 2013, 2014