Case SC Tractor Radiator Cap. New!! USA made Reproduction. This is a beautiful, exact reproduction of the original. An exact Cast Iron copy of the original Cap, drilled & tapped to hold the replaceable retainer tang, which is included, just like the originals. Complete with Gasket. Come on, the ol’e girl deserves more than just that rag you got stuffed in there. Or even that old, loose cap that doesn’t seal any more.