Tail Lamp Assembly is a direct fit for the following:

2010-2012 Chevrolet Silverado 1500
2010-2012 Chevrolet Silverado 2500 HD
2010-2012 Chevrolet Silverado 3500 HD
2010 GMC Sierra 1500
2010-2011 GMC Sierra 2500 HD
2010-2011 GMC Sierra 3500 HD

Genuine GM Part Number: 20840272