General Motors SD70MAC
CSX 700-
Active

General Motors SD18
CSX 1075-1087
Retired

General Motors SD20-2
CSX 2400-2404
Active

General Motors SD38-2
CSX 2450-2454
Active

General Motors SD35
CSX 4505-4599
Retired

General Motors SDP35
CSX 4505-4599 (Same as SD35s)
Retired

General Motors SD40-2
CSX 8200-8261
Active

General Motors SD40
CSX 8300-8438
Active

General Motors SD50
CSX 8500-8643
Active

General Motors SD60
CSX 8700-8709
Active

General Motors SD45
CSX 8900-8944
Retired

General Motors SD45-2
CSX 8959-8982
Active

General Motors SD7
CSX 9701-9704
Retired

General Motors SD9
CSX 1831-1839
Retired

Ranges from 1987 to 1993 do not include engines retired, sold, or wrecked.