Fog Light & Cargo Lamp Switch is a direct fit for the following:

2003-2006 Cadillac Escalade EXT
2003-2006 Chevrolet Avalanche
2003-2007 Chevrolet Silverado 1500
2003-2007 Chevrolet Silverado 2500 HD
2003-2007 Chevrolet Silverado 3500
2003-2007 GMC Sierra 1500
2003-2007 GMC Sierra 2500 HD
2003-2007 GMC Sierra 3500