An EMD GP15AC is a 4-axle switcher built by General Motors Electro-Motive Division between November and December 1982. This locomotive differs from the otherwise identical EMD GP15-1 due to Missouri Pacific specifying new AR10 AC alternators instead of rebuilt D32 DC generators. The only external difference between the GP15AC and the GP15-1 is a straight side sill (shared with the EMD GP15T) not related to the transmission difference.

Type and origin
Power typeDiesel-electric
BuilderGeneral Motors Electro-Motive Division (EMD)
Build dateNovember and December 1982
Total produced34
Gauge4 ft 8 12 in (1,435 mm) standard gauge
LocaleUnited States

34 examples of this locomotive model were built for Missouri Pacific Railroad, with four units built for Venezuela's IFE.

Complete list

Railroad Quantity Notes
Missouri Pacific Railroad 30 #1715-1744. To Union Pacific as UPY #715-744.


  • Marre, Louis A. & Pinkepank, Jerry A. (1989). The Contemporary Diesel Spotter's Guide. Waukesha, WI: Kalmbach Books. ISBN 0-89024-088-4. LCCN 88083625. OCLC 19959644.

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