Cable joiner/s

G'day gang,
I'm back on deck after my "holiday" in the big smoke; flat on my back for 4 days!!! Thanks to all those who gave me their best wishes (and "cheek" in some cases...haha) via Willem's post (which I haven't been able to locate, but which Annette has told me about).
Anyway, I digress.............
I need to get a plug/s for this little 2000lb winch I've got for lifting my spare tyre/s on and off their brackets. The size of the cable on the winch is too narrow to warrant using a 50amp Anderson plug, so I'm looking for the next smaller size in something similar to an Anderson plug.

A year or 2 ago, there was somebody selling such plugs (black and/or red) in the Trader Section on here. I never got around to buying any!!! These are probably the type I'm after, but I don't know their name or designation etc. The cables on the winch actually have crimp-on lugs with yellow insulation (the largest of the usual 3 of this type of connector......red being the smallest, blue the middle size and yellow the largest).

Any advice will be gladly accepted and thanks to everybody in advance.

Cheers

Roachie