DECK FILL CAP REPLACEMENT

[pjazz]

Hi all, I am looking to replace a damaged deck fill cap.

I own a 1993 Wauquiez Centurion 45 (original model built in France) and it seems that a standard 1 1/2" s.s. replacement cap is slightly bigger than the female flanged fitting on deck. Although the thread is identical, the diameter is ever so slightly different.

Other info: I have 5 fill spots all the same size: 4 of them have a nylon coloured cap, one is S.S. with a winch handle socket key ( and I don't know where that one came from...)

Am I looking for a metric rather than SAE size? any advice would be appreciated.

Thanks for your input, Pierre J.

[StuM]

Google 1 3/8" - 35mm deck fill cap. Lots of them out there.

(1.5" = 38mm cap)