Problem is we dont know depth, length or width. Its unlikely Four Winns had a sink special made for their boats, and less likely they made it thenselves.
Stick your head under the sink and see id there isnt a makers label on it. Better yet if it needs replaced, remove it and take a look.
W a rough idea of how much space you have, a different sink can probably be made to fit w a few changes to the countertop..
Just like Don, google came up w lots of sinks for me.
