I'm in Oklahoma city. I did email a company in the UK that said they carry Mitsubishi Mt 2801fd tractor parts but have not heard from them. Thank you for the link.Hello macdoesit, welcome to the forum.
There are a number of possible parts sources for Mitsubishi tractors on the internet. Pitt auto claims to be the only factory authorized parts supplier. See attached link.
Mitsubishi Tractor Parts
Many tractor manufacturers are ending parts supply 20 years after the end of model production. Finding parts will be a challenge. Your tractor model is 30+ years old.