EMD SD75M/SD75I

EMD SD75M
BNSF SD75M No. 8231
Type and origin
Power typeDiesel-electric
BuilderGeneral Motors Electro-Motive Division (EMD)
ModelSD75M, SD75I
Build date1994 – 1996
Total produced283 (76 SD75M, 207 SD75I)
Specifications
Configuration:
 • AARC-C
 • CommonwealthCo-Co
Gauge4 ft 8+12 in (1,435 mm)
Fuel typeDiesel
Prime moverEMD 16-710G3
Cylinders16
Transmissiondiesel electric
Performance figures
Power output4,300 horsepower (3,200 kW)
Career
OperatorsBurlington Northern Santa Fe, Canadian National
NumbersBNSF 200–201, 203–208, 210–217, 219–221, 223–224, 226–228, 231–275, renumbered from 8200–8275. NS 2800–2806.
DispositionIn service as of 2019, CN units to be rebuilt as SD75IACCs; NS units retired

The EMD SD75M and EMD SD75I are a series of diesel-electric locomotives produced by General Motors Electro-Motive Division between 1994 and 1996. The series is an improvement and extension to the EMD SD70 series, which further is an extension to the EMD SD60. These locomotives shared its microprocessor with the EMD SD70 & SD60.

These locomotives were built as a response to General Electric's Dash 9-44CW, where as their cousins, the SD70MAC, were built in response to General Electric's AC4400CW. By increasing the output of the 16-710-G3 engine from 4,000 to 4,300 horsepower (3,000 to 3,200 kW), the SD75 was a reality. The "M" in the model designation is the style of the cab, in this case the North American style cab.