Whew, a LOT of misinformation in this thread. It would take quite a while to dispel each mistake with documentation, which I haven't the time nor desire. Then there are several opinions I personally disagree with, but those are just opinions to which everyone is entitled. First, no, Yanmar does not make John Deere tractors. Yanmar is an excellent company that produces world class quality products. However, they don't have much to do with JD any longer. Even when they did, and I had one of their fantastic 870 tractors, only the smaller JD tractors were Yanmar made. Never all of them.
No tractors under 45 hp are made in the U.S. Hmm, not true. Here is just one example, taken from their website, Kubota Manufacturing of America (KMA) was formed in 1988 as Kubota痴 North American manufacturing base. KMA manufactures and assembles Kubota lawn tractors, zero-turn mowers, sub-compact tractors, loaders, backhoes and other implements. The company employs 1200 workers. Two master buildings offer 616,000 square feet of manufacturing space. Today, one-third of all Kubota branded equipment sold in the United States is manufactured or assembled at its 151-acre Gainesville, Georgia facility.
Opinion wise, I'd rather have an Iveco engine than Mitsubishi. I've owned and worked on several Mitsubishi powered vehicles, forklifts, man lifts, and various other industrial pieces of equipment with Mitusbishi engines in them and, IMHO, Mitsubishi is just a different way to spell Yugo. Again, opinion, as opposed to previously dispelled statements with facts. I'd not worry about Iveco. "Iveco, an acronym for Industrial Vehicle Corporation, originally an alliance of European commercial vehicle manufacturers such as Fiat (including OM and Lancia Veicoli Speciali), Unic and Magirus. Iveco is now an Italian truck, bus, and diesel engine manufacturer, based in Turin. The firm is a subsidiary of Fiat Industrial, having been demerged from the Fiat Group at the start of 2011, and produces around 200,000 commercial vehicles and 460,000 diesel engines annually, and for the year ended 2007 the company had ?11,196 million in sales (revenues).
Today the company is a significant player in the medium-duty trucks and engine markets, and is near the top for sales of passenger transport and 3.5 ton light vehicles".