I don't know what terminal, or what type of harness connector it uses, but I use
Dell City for most all my electrical supplies.
Use dielectric silicone (sometimes called dielectric grease) on the connector to keep corrosion down. You can get it at any part store, but honestly, that connector is under the hoods and side panels. It shouldn't be getting wet and corroding unless you wash the tractor a lot or it sits out.
I just now noticed your avatar pic is a GIF file.... IT MOVES! Cool!