Disappointing, but thanks for the info.
I would not hesitate to use a remanufactured Toyota alternator that is remanufactured by Denso in Michigan.
That said you can choose a new OEM Japanese-manufactured Denso alternator for the 3UR if you want vs. a remanufactured option (at least for the 200 series through August 2015 manufacture date).
So, there is 27060-38050 (new OEM) and there is 27060-38050-84 (OEM remanufactured)
Post-August 2015 (8 speed introduction): 27060-38140 (new OEM). There is no remanufactured option for the later alternator.
All Toyota diesel engines, for example, only source new OEM Japanese-manufactured Denso alternators. No remanufactured options available-- starters too.