The loader on the early bobcat tractors was made by rhino. They changed from rhino to their own bobcat made loader sometime around 2010/2011. The older style loader has the curved loader arms where as the newer loader has the angled loader arms I do not know why they changed. I forgot to mention before that I did have problems with my stock bobcat brand battery. It would leak if I used the tractor on a very steep incline. This was evident from new so I replaced it with a gel type battery. I also heard of two other things on some of the early tractors. Some had a fuel injection or fuel solenoid problem can't remember exactly And heard of a couple of problems with a Hydro cooler. It's pretty much the same tractor as a Kioti CK 27 so you could research those as well I think that's where I heard of the later of the two problems I mentioned. All machines are going to have their specific issues but I think overall The bobcat tractors are top notch.