Left Hand Driver's Side Upper Bed Rail Molding is a direct fit for the following:

2004-2007 Chevrolet Silverado 1500
2004-2007 Chevrolet Silverado 2500 HD
2004-2007 Chevrolet Silverado 3500
2004-2007 GMC Sierra 1500
2004-2007 GMC Sierra 2500 HD
2004-2007 GMC Sierra 3500

Genuine GM Part Number: 15932241