Compatible with the following trucks: 1999-2002 Chevrolet Silverado 1500 2001-2003 Chevrolet Silverado 1500 HD 1999-2003 Chevrolet Silverado 2500 2001-2003 Chevrolet Silverado 2500 HD 2001-2003 Chevrolet Silverado 3500 1999-2004 GMC Sierra 1500 2001-2003 GMC Sierra 1500 HD 1999-2002 GMC Sierra 2500 2001-2003 GMC Sierra 2500 HD 2001-2003 GMC Sierra 3500 2001 GMC Sierra C3 2002-2003 GMC Sierra Denali Configuration: 1 Main filler tube 1 Vent Tube Note: .
