Works Connection Radiator Plug - Black 24-632The radiator purge plug is plastic and can be susceptible to melting under extreme riding conditions. During installation you might also learn the hard way that plastic threads are easily cross threaded. The Works Connection Radiator Plug avoids both these issues by way of its CNCd billet aluminum design. CNC machined from billet aluminum to exacting specifications Laser engraved WC logos Direct replacement for the stock plastic plug Made in the USA