I have read many of the postings concerning Vietnamese tractors and can provide the following information. I do own a Yanmar that was imported via Vietnam. I have owned it for a little over a year and put approximately 100 hours on it. Did I have a few problems to fix - yes. Have I had any engine, transmission, or hydraulic problems - no. The tractor I have has been painted, but does not have new bolts or any of the parts re-plated. Did I know in advance it was imported through Vietnam - no. I found out after the fact when I encountered a problem that I originally thought was major, which turned out to be very minor. The "seller" requested that I discuss it directly with his "distributor" in case they had questions. While I did get the problem fixed, they did offer to bring me another tractor free of charge, including delivery. Contrary to the ads and claims on various Internet sites, I do not believe that mine or any of them have been rebuilt top to bottom, but I did not purchase it expecting that it had been rebuilt. By the way, in my area there are no full service dealers....and I am a novice when it comes to tractor buying.
I have seen the real sharp looking Yanmars at a local equipment auction (one time) and they are exactly as described in previous postings. In talking with a few of the "locals" at the auction, they made it very clear that most, if not all, of the ones at the auction need a lot of TLC. One "local" who turned out to be a private seller said that he inspects closely before buying and so far he has been able to get good tractors. From what I was told, the "distributors" do bring a few good ones to this particular auction (now and then) just to make up a complete trailer load. However, the "best ones" are just a phone call away.
One thing for sure, I know of two major "distributors" of the tractors in question and both of them are very aggressive in their "sales and marketing department". I was told by an independent tractor service center that one of them maintains an inventory of approximately 400 tractors. He has been approached to sell their tractors, however, he wants no part of the gray market tractor business - period.
Now for my one and only personal comment - I don't feel that anyone should be doing any bashing because they were "rebuilt" in Vietnam, but rather the claim of being "100% rebuilt". The real issue, as I see it, is not where there were "rebuilt", it is the claim...period.
Now please don't shoot the messenger becuase I am only passing on my personal experience and what I have heard....and one small item of personal opinion