When I worked at a Harley dealership, I saw "factory" parts made in Germany, India, Indonesia, Singapore, Thailand, Canda, Mexico, and others I can't recall.
For years now Harley has pretty much been assembled in U.S.A., with major cast and welded components made in U.S.A.
bairdco hit the nail on the head really, Harley has been seriously considering opening up another full complement manufacturing plant in a European country for years. Sorta like moving the kitchen closer to the dining room. Sales in the U.S.A. are only a small portion of their global sales. It now sounds like that idea will soon become a reality.
Only time will tell....