Between October 1971 and March 1972 the South African Railways placed fifty Class 34-200 EMD GT26MC diesel-electric locomotives in service. They were built by Electro-Motive Diesel (EMD) and imported, numbered in the range from 34-201 to 34-250.
See also the Wikipedia article on the South African Class 34-200.

Between September 1976 and June 1978 the South African Railways placed one hundred Class 35-600 EMD GT18MC diesel-electric locomotives in service. Designed by Electro-Motive Diesel, they were built in two batches by General Motors South Africa in Port Elizabeth, numbered in the ranges 35-601 to 35-650 and 35-651 to 35-700. A single Class 35-600 GT18MC locomotive was also built new in 1977 for Columbus Stainless in Middelburg, Transvaal.
See also the Wikipedia article on the South African Class 35-600.

Between September 1976 and June 1978 the South African Railways placed one hundred Class 35-600 EMD GT18MC diesel-electric locomotives in service. Designed by Electro-Motive Diesel, they were built in two batches by General Motors South Africa in Port Elizabeth, numbered in the ranges 35-601 to 35-650 and 35-651 to 35-700. A single Class 35-600 GT18MC locomotive was also built new in 1977 for Columbus Stainless in Middelburg, Transvaal.
See also the Wikipedia article on the South African Class 35-600.

Between September 1976 and June 1978 the South African Railways placed one hundred Class 35-600 EMD GT18MC diesel-electric locomotives in service. Designed by Electro-Motive Diesel, they were built in two batches by General Motors South Africa in Port Elizabeth, numbered in the ranges 35-601 to 35-650 and 35-651 to 35-700. A single Class 35-600 GT18MC locomotive was also built new in 1977 for Columbus Stainless in Middelburg, Transvaal.
See also the Wikipedia article on the South African Class 35-600.

Between September 1976 and June 1978 the South African Railways placed one hundred Class 35-600 EMD GT18MC diesel-electric locomotives in service. Designed by Electro-Motive Diesel, they were built in two batches by General Motors South Africa in Port Elizabeth, numbered in the ranges 35-601 to 35-650 and 35-651 to 35-700. A single Class 35-600 GT18MC locomotive was also built new in 1977 for Columbus Stainless in Middelburg, Transvaal.
See also the Wikipedia article on the South African Class 35-600.

Between September 1976 and June 1978 the South African Railways placed one hundred Class 35-600 EMD GT18MC diesel-electric locomotives in service. Designed by Electro-Motive Diesel, they were built in two batches by General Motors South Africa in Port Elizabeth, numbered in the ranges 35-601 to 35-650 and 35-651 to 35-700. A single Class 35-600 GT18MC locomotive was also built new in 1977 for Columbus Stainless in Middelburg, Transvaal.
See also the Wikipedia article on the South African Class 35-600.

Between 1980 and 1984 the South African Railways placed 101 Class 36-200 EMD SW1002 diesel-electric locomotives in service. Designed by Electro-Motive Diesel, they were built in two batches by General Motors South Africa in Port Elizabeth and numbered in the range from 36-201 to 36-301. In 1984 one was also built for the Bophuthatswana National Development Corporation, while three were placed in service by Iscor in Pretoria between 1986 and 1991, and another two by the Ithala Development Finance Corporation in KwaZulu-Natal in 1987.
See also the Wikipedia article on the South African Class 36-200.

Between May 1981 and 1982 the South African Railways placed one hundred Class 37-000 EMD GT26M2C diesel-electric locomotives in service. It is a more powerful version of the EMD Class 34-200, 34-600 and 34-800, designed by Electro-Motive Diesel and built by General Motors South Africa in Port Elizabeth. They were numbered in the range from 37-001 to 37-100. In 2008 one of them, no. 37-010, was rebuilt to Class 39 prototype no. 39-251 that was tested but rejected by Transnet and later reported as sold to RRL.
See also the Wikipedia article on the South African Class 37-000.