Manufacturer Part Number: 12669595, 5WK96645H, 12622451, 12669595, 12671388, 19256344(Please check your Part Number number carefully.Make sure the item fit for your car.) Exquisite Workmanship Easy to Install Fully Tested Fitment:for Chevrolet Express 2500 6.6L V8 DIESEL Turbocharged 2010-2015 for Chevrolet Express 3500 6.6L V8 DIESEL Turbocharged 2010-2015 for Chevrolet Express 4500 6.6L V8 DIESEL Turbocharged 2010-2015 for Chevrolet Silverado 2500 6.6L V8 DIESEL Turbocharged 2011-2014 for Chevrolet Silverado 3500 6.6L V8 DIESEL Turbocharged 2011-2014 for GMC Savana 2500 6.6L V8 DIESEL Turbocharged 2010-2015 for GMC Savana 3500 6.6L V8 DIESEL Turbocharged 2010-2015 for GMC Savana 4500 6.6L V8 DIESEL Turbocharged 2010-2015 for GMC Sierra 2500 6.6L V8 DIESEL Turbocharged 2011-2014 for GMC Sierra 3500 6.6L V8 DIESEL Turbocharged 2011-2014 Colour:Silver Material:Metal Package Contents: 1 x Rear Nox Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.