It is actually red black black and yellow!
I've ordered a new relay/control box.
Attachment 169103 Attachment 169104 Attachment 169105 Attachment 169106
The winch gearbox, no sign of water, some of the grease is grey, which I think is from metal particles. All bearing move smoothly. I repacked this with grease.
Attachment 169107
The motor end plate. It does have an O ring to seal. I added a thin layer of grease to reduce corrosion and prevent water getting in.

