Moroso Universal Filler Cap Kit - 1-3/8-12 - Aluminum Bung - Black Anodized

If you're fabricating a custom cooling system or modifying your radiator setup, you'll need a reliable way to seal it off. This universal filler cap kit from Moroso is designed to help you do just that. It gives you a clean, secure mounting point for a radiator cap on custom tanks or radiators where a factory cap won't fit.

The kit includes a 1-3/8-12 threaded aluminum bung that you can weld or attach to your custom radiator or overflow tank. Once the bung is in place, the included black anodized filler cap threads right in, providing a solid seal. The black anodized finish on the cap looks sharp and helps protect the aluminum from corrosion. This is a well-built piece that makes a custom cooling system look and function professionally.