The EMD G12 was a class of locomotive built by GM-EMD, and its Canadian affiliate General Motors Diesel. In addition, Australian licensee Clyde Engineering built ten locomotives for New Zealand in 1957, five for Hong Kong, 23 for Queensland, 14 for Western Australia and seven for BHP. Australian licensee Commonwealth Engineering also built 42 for Queensland Rail in 1964–66. Many examples were built in the 1950-1960s for railroads all over the world. They are powered by EMD 12-567C prime movers rated at 1,250 hp (930 kW). Some have been rebuilt with EMD 645 engines.
7 Broken Hill Proprietary Company – DE class
A total of 241 locomotives:
2 Estrada de Ferro de Goiás 5201–5202
30 Mogiana Railway 3001–3030
43 Estrada de Ferro Noroeste do Brasil 1101–1143
17 Rede de Viação Paraná-Santa Catarina
18 São Paulo Railway 700–717
25 Rede Mineira de Viação 2201–2207, 2217–2228
71 Viação Férrea do Rio Grande do Sul 2121–2145, 2161–2168, 6169–6206
35 Estrada de Ferro Vitória a Minas 531–565
2 London and Port Stanley Railway L4, L5
1 General Motors Diesel demonstrator 7707 (to Sweden as Statens Järnvägar T42 in service between 1956 and 1983)
3 Andes Copper Mining 81–83
97 Egyptian Railways 3701–3797. During the 1967 Six-Day War, Israel captured 4712, 3715, 3766 and 3795, which were appropriated to Israel Railways stock.
23 Israel Railways 104–126, some since rebuilt with 12-645E engines. After the 1967 Six-Day War, four captured Egyptian G12s were renumbered 127–130.
137 Islamic Republic of Iran Railways 40.01–40.137
Driver cab of most of the active units have been changed to full view like GT26.
Railway Research Center (MATRAI) has converted one of G12 loco to Hybrid locomotive in 2001 with AC drive.
5 Kowloon-Canton Railway 51–55 (52–55 to Chicago Freight Car Leasing Australia as TL152–TL155)
84 Ferrocarriles Nacionales de México 5806–5889
Netherlands
5 Dutch State Mines (Built under license as Henschel G12 in Germany)
25 Korean National Railways 4001–4015, 4101–4110
25 Nigerian Railways 1101–1125
2 Sydvaranger 1, DE101 – G12 (used on the Kirkenes–Bjørnevatn Line, 1954–97)
2 Sri Lanka Railways.
Class M2C 626–627 (Before 2010 it used only for upcountry between Rathmalana, Colombo- Kandy, Badulla.)
Government Coal Mines 01–03
25 Sarmiento Railway 4501–4525
13 Queensland Rail 1400 class
A total of 26 locomotives:
6 Rede Mineira de Viação 2708–2712
20 Viação Férrea do Rio Grande do Sul 2101–2120
11 Indonesian State Railways BB201 01–BB201 11
6 Ferrocarriles Nacionales de México 5800–5805
New Zealand
146 New Zealand Government Railways 1400–1545 – New Zealand DA class locomotive
12 Sri Lanka Railways. All except M2 571 still in daily operation (1). Classified as Class M2
Class M2 569–573 One Engine (As locomotives are called by Sri Lankans) (M2 571) destroyed by terrorism.
Class M2A 591–593
Class M2B 594–595
Class M2D 628–629
52 Taiwan Railway Administration R21–R72; some of their engines were replaced to 12-645E. R56–59: sent to Malawi Railways in July 2006.
1 Electro-Motive Division demonstrator 1956
A total of 66 locomotives:
10 1450 class
42 1460 class (later on-sold to Tranz Rail and converted to DQ class locomotives for use in New Zealand and Tasmania).
14 Western Australian Government Railways A class
