The fuel cap on my 1984 Hunter 40 is broken and the Hunter people told me the company that made those for them has been out of business for about 8 years. Before changing the whole fitting, I wonder if anybody knows where else I could find one. It is for a 1.5 inches hole and it is the baionet type, not the screw-on type. The caps for the water tank and for the septic tank also would work. Thank you for your input. Mauro C. Dal Canto