Dorman 918-337 Fuel Line Cooler. Fuel Cooler. Fits what vehicles: 2001-2006 Chevrolet Silverado 3500, 2001-2006 GMC Sierra 3500, 2007 Chevrolet Silverado 3500 Classic, 2007-2010 Chevrolet Silverado 3500 HD, 2007 GMC Sierra 3500 Classic, 2007-2010 GMC Sierra 3500 HD.
