There are not a lot of parts places here in NB. Some of us have collected a number of parts over the years and some of our NB members might have a part you are needing. Just need to know what.
There used to be a good IH Dealership in Freddy -- Trail was the owner's -- belonged to my buddy's uncle. It has been bought up and closed though and all the inventory has been sold. You can place an ad in the local Kijiji - but make your search options to include at least 250Kms .. which is the one I use.
As far as a parts yard -- there are two that I know of. 1 is in Sussex but he is a bit proud of his stuff .. and I do mean proud. The other one is Chown's outside of Sussex .. How to get Here from There
.. which is where we held CubFest Northeast 2004.
If you are looking for a dealer, well the closest is Arbings in Sussex as well. They don't stock a lot of Cub stuff and most of the younger ones haven't a clue .. John does but don't know if he has retired yet or not. If you need parts ordered make sure you have the part number - page in the proper TC-37 and have the latest rev on the part otherwise they are not going to be helpful. Good dealers are becoming hard to find in NB sadly
Can you please add your location to your profile? That way when it is time for the next NB CubFest here we can let you know. Trying to get all the NB/NS/PEI guys together at some point.