Just finished my 50 hr. maintenance on my MT225 EH. Here are some things I thought might be helpful to those who are about to do the same.
MT225 EH
Hydraulic Oil Filter: Luber-finer LFH8207 was a perfect fit. The manufacturer/dealer had this puppy on incredibly tight. Have a good strap wrench available. I just used a clutch style bar clamp (normally used for wood working) and just tightened it until it dented the filter and then manhandled it off. I suspect the dealer does this because of the vibration these endure, especially at idle. You will lose hydraulic fluid when you change this filter so have a few quarts available.
Air Filter: WIX 46449. No issues replacing this one.
Oil Filter: WIX Filters - 57040. Again, the OEM oil filter was way tighter than I would have expected it to be. When I removed the OEM oil filter I noticed that it was about an inch longer than the WIX filter that I bought. The WIX fit fine; and, I have had no trouble with it so far. I am going to try to find a longer filter. The OEM filter was hard enough to get to with the cheap oil filter wrenches I have, having it about an inch shorter is not going to make it any easier to do. I might try a Baldwin B1341 next time, those are about 4 inches long versus about 3.5 inches of the OEM and 2.5 inches of the WIX filter. The manual says there are two oil drain plugs on the tractor. I was only able to find one (same side as the filter). Drain plug is 17mm.
Good luck, and if you have any information to share on the MT225 tractors, please do.