I bought one from Advance Auto, and it didn't come with a gasket.. I went on Brewers site and it has the gasket as a separate purchase, which seems weird if it's needed and sounds like there'd be no chance of reusing an old one. I now have the switch and gasket coming from Brewers and I'll just take the other back.The replacement paper gaskets are terrible. Buy quantity you'll need more then one as you rip them. Use a slippery grease on both sides.
If your prongs are leaking its no good.