Duramax Water Outlet Blocks Universal application. 6061 Billet Aluminum Water Outlet with -12 AN Ports Designed to work with all all sorts of water routing configurations for a clean final install look and functionality. Designed to match factory OEM Gasket. Kit includes One Passenger and Driver Side with 8 Stainless Cap Screws for a clean install. Fits 2001-2016 Series Duramax Motors. Made in house and Made in the USA.