Union Pacific 1983
 Union Pacific 1983 is an EMD SD70ACe locomotive owned by Union Pacific Railroad. It is one of UP's locomotives painted in the scheme of a predecessor railroad. UP 1983 is painted in Western Pacific Railroad colors. The locomotive was unveiled together with number 1982 (painted in honor of Missouri Pacific Railroad) in a private ceremony on July 30 2005 in Omaha Nebraska after which it entered regular revenue service.