No silly emissions stuff on it then! Looks great for 20 years old.It's an 06. It was a trade in. Apparently it didn't get used much
I would recommend trying to do most of the dirt work with the box blade if you can, or in 2wd if you are using the loader a lot. The weak spot on all of these tractors is the front axle, as you can overload it with weight on the loader and then the full torque going through the front axle when in 4wd.
It would be good to have a very close look at front axle, loader, the loader mounts, also around the top link, just in case something has been cracked, and put a wrench on the loader mount bolts. It doesn't look like anyone has used it as a bulldozer, but just have a close look while you have warranty on it.