My take is that when MTH issued their UP heritage series of locomotives...someone deemed that...the plain old UP armour yellow and harbor mist gray paint livery was, indeed, part of UP's heritage. After all, it is probably the most iconic paint scheme still in existence today. So...like the other heritage locomotives...they produced a "heritage set" cataloged as 20-2774-1. Why they chose UP 8321 as the engine number...I do not know...but, they did.
I don't think you could get a separate sale UP 8321 prior to issuance of the set.
Yes, I think your right. After reading these posts, I think maybe MTH knew UP was doing the Heritage series and did not have an SD70ACe in UP Yellow/Harbor Mist Grey and randomly used 8321. Since 8444 was not out yet in real life. Also, to my knowledge, the 8321 UP is the only Yellow/Grey with the red stipe on the bottom. All others have the yellow safety stripes on the bottom.
I don't think so....
