You don't say what you need the wire for. If its for batery cables you can go to Auto Zone or others and buy red or black automotive battery cables. They come in different lengths. Cut the battery end off. I have made ends using copper pipe, cut a piece about 1 inch ling flaten one end drill a hole and solder the piece to the cable. will prbably outlast the tractor. Or you can buy new copper ends at a auto suppy house. Good luck..