It just depend what you read. I just read an article that said al the JD models are made in the US with world sourced components. The D series (cheap line) is made in a John Deere plant in Greenville Tennessee and that those models are the same as what the JD dealers sell. The new E series is also built in Greenville. The X series is made in Horicon Wisconsin. I can't remember the progression into the Yanmar built mini's. Those are the ones with the huge decks, pto, loaders and the like. I could look it up but I have supper to fix. LOLLooking at that article it is dated 2007.
I dont think husqvarna makes their own, and deere certainly does not. The larger ones are still deere,but the riding mowers are mtd. Modern Tool and Die ...