Copper Drain Plug Gasket, Fits 1/2, 1/2So, M12, M12 So (25 Copper Gaskets). Dorman's Engine Oil Drain Plug Gaskets are conveniently available in packs of varying quantities. Many styles are offered, including Copper, Aluminum, Nylon, Metal/Rubber, Inset, Fiber and Crush gaskets. Replacement is recommended at every oil change. Oil filter caps are available separately.
