An EMD GP38AC is a 4-axle road switcher diesel-electric locomotive built by General Motors Electro-Motive Division between February 1970 and December 1971. It was basically a GP38 with an AR10 alternator instead of the GP38's normal generator.
|Detroit, Toledo and Ironton Railroad||210-217||215 renumbered 209, 216 renumbered 208, 217 renumbered 207; to Grand Trunk Western Railroad 6207-6214|
|215-220||To Grand Trunk Western Railroad 6215-6220|
|Grand Trunk Western Railroad||5800-5811|
|Gulf, Mobile and Ohio Railroad||721-733||To Illinois Central Gulf Railroad 9540-9552|
|Illinois Central Railroad||9500-9519|
|Lehigh Valley Railroad||310-313||To Conrail 7656-7659|
|Louisville and Nashville Railroad||4020-4049||To Seaboard System Railroad 6241-6270 then to CSX|
|Norfolk and Western Railway||4100-4159||To Norfolk Southern. All have either been retired, scrapped, or rebuilt.|
|Pacific Power & Light Company||11|
|Southern Railway||2823–2878||To Norfolk Southern. All but 3 have either been retired, scrapped, or rebuilt.|
|St. Louis – San Francisco Railway||633-662||651 wrecked, remaining to Burlington Northern Railroad 2110-2138 and later to BNSF. Some of them were rebuilt as GP38-3R or GP39-3|
- 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.
- Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, Wisconsin: Kalmbach Publishing. ISBN 978-0-89024-026-7.
- Sarberenyi, Robert. EMD GP38 and GP38AC Original Owners
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