Not good news.. This is on the internet.. I tried to get some parts for my Maxwell 21 winches and found them to be outrageously expensive.
Where can I find spare parts for my Maxwell sheet winch?
Maxwell Marine have sold all their Sheet Winch spare parts and tooling to the Australian Yacht Winch Company known as ARCO. ARCO are world renowned as a source for spares for old Sheet Winches. Their contact details are
www.arco-winches.com or telephone: +61 2 9623 2448 or fax: +61 2 9623 2265. Arco are based in New South Wales, Australia.
I needed nylon bushings so I found the correct size (almost) and trimmed them to fit. I think that the pawls and springs are very close to some other brands parts and with some messing about with a micrometer, ya might be able to retrofit.. If ya need gears , ya probably out of luck unless you know a good machinist ..
EBay has some every now and then.
Or a different brand.. :
Used Pair Barient Stainless Steel 22 Winches Sailboat (Lot #3133) | eBay