The 2001 now has 3500 hours on it and the 2003 has 1500 hours (both gas) both bought new: 2001: front cv joints out, two starters out one going right now and will need replacement, clutch out, drive belt replaced several times, valve covers replaced due to leaks, seals replaced on water pump due to leak, seat foam replaced, only used by adults for farm chores, both Mules are hard starters, particularly in the cold, the Kubota starts easily.
All have had normal maintenance done on farm and at dealer. Most of the major repairs have been on the 2001, the 2003 had a couple belts replaced so far but has only one half the hours of the 2001. The 2001 might have been a lemon, and the 2003 hasn't had a major failure yet, so I shouldn't make a blanket statement about Mules until we see what happens down the line with the 2003. I still prefer the Kubota for ride and comfort and ease of handling in tight places and when doing spot spraying.
Billy