An aftermarket first! This smaller style Chrysler/Dodge/Jeep Magnum 5.2L/5.9L theromstat housing (water neck) is more attractive than the ugly stock OEM stamped part. CNC Machined from billet 6061-T6 Aluminum. This water neck provides the right look with a high performance intake manifold. The O-ring seal eliminates the need for a gasket and RTV. Package includes water neck, o-ring, and stainless steel fasteners.