Water/Deck Cap
Hi Peter,
Welcome to the forum. Now, for the bad news. I just went through the same problem with the fuel cap and, no, the original type/thread/design is no longer available (I spent weeks searching on the Web). I replaced my entire unit with a new one from West Marine; the source is up to you, however, my guess is that you'll have to replace the eniter unit. Good news, the part/assembly is only about $25 - $35. Good luck!