I recieved another quote for the break apart, repair, reassemble for $2,280 (without parts) which is Kubotas warranty guideline at 28 hours. Most shops around here charge $80-86 hour. The $4,800 has me pissed of as we have been doing biz with this dealer for 4 generations and I have A LOT of orange machines. The parts are the same $ where ever you go, and I agree, buying an entire new HST unit for $4300 seems the only way to go if you are going to open the machine up at that cost. Yes, I do use my machine commercially and luckily I have 2. The regulator assembly is like $3,100 and the piston servo valve is like $1,200 so combined I am better off new HST for a piece of mind. I am really disappointed in the dealer, and to some degree Kubota, for the cost of repairs to these things. I am not asking for a favor or a reduced price, just a fair, mutually beneificial repair bill. The problem with these things is that they are freakin rocket scientist machines these days, you can't work on a machine like this repair needs yourself so they have you by the HST, if I may. I paid $38 for the 1st L48 with hoe and $27.5K for the 2nd without hoe. Almost $10K to fix a machine that cost $27.5K is stupid. My machines are serviced regularly and used slightly more than above average. They do make me $ so that helps. If the labor cost doesn't come down, I am going elsewhere......along with all my future biz.