Part Numbers: 604-121 89022572 89023358 Applications: 2007 Chevrolet Silverado 1500 Classic 2007 Chevrolet Silverado 1500 HD Classic 2007 Chevrolet Silverado 2500 HD Classic 2007 Chevrolet Silverado 3500 Classic 2007 GMC Sierra 1500 Classic 2007 GMC Sierra 1500 HD Classic 2007 GMC Sierra 2500 HD Classic 2007 GMC Sierra 3500 Classic 2003-2007 Hummer H2 2003-2006 Cadillac Escalade EXT 2003-2006 Chevrolet Avalanche 1500 2003-2006 Chevrolet Avalanche 2500 2003-2006 Chevrolet Silverado 1500 2003-2006 Chevrolet Silverado 1500 HD 2005-2006 Chevrolet Silverado 2500 (Mexico) .
