Windshield Washer Reservoir is a direct fit for the following:

2007-2013 Cadillac Escalade EXT
2007-2013 Chevrolet Avalanche
2007-2013 Chevrolet Silverado 1500
2007-2010 Chevrolet Silverado 2500 HD
2007-2010 Chevrolet Silverado 3500 HD
2007-2013 GMC Sierra 1500
2007-2010 GMC Sierra 2500 HD
2007-2010 GMC Sierra 3500 HD