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IC TR1 9251.jpg
TR1 #9251 in 1942.
Type and origin
Power typeDiesel-electric
BuilderGeneral Motors
Electro-Motive Division
Build date1941
Total produced2 pair
Gauge4 ft 8 12 in (1,435 mm) standard gauge
TrucksBlomberg B
Prime moverEMD 16-567 (2)
Engine typeV16 2-stroke diesel
Cylinders16 (2)
Loco brakeStraight air
Train brakesAir
Performance figures
Power output2,700 hp (2,000 kW)
OperatorsIllinois Central Railroad
DispositionTraded for parts

The EMD TR1 was a two-unit "cow-calf" diesel locomotive built by General Motors Electro-Motive Division of La Grange, Illinois, in 1941. Two pairs were built for the Illinois Central Railroad, the only purchaser.

The locomotive units strongly resembled the EMD NW3, with a long frame, Blomberg B road trucks, and a large cab connected to a wide area of hood that tapered going forward. The locomotives incorporated the machinery of the EMD FT in switcher bodywork; a V16 EMD 567 diesel engine of 1,350 horsepower (1,010 kW) in each unit.

The cow and calf units were semipermanently coupled together with a drawbar instead of couplers, in similar fashion to the FT's twin-unit sets.

The two locomotive pairs were numbered 9250A&B and 9251A&B, later renumbered 1350A&B and 1351A&B. They initially were assigned to Markham Yard south of Chicago, IL, but by the early 1950s had been reassigned to the yard at East St. Louis, IL.

Both remained in this service until they were retired in 1966 and traded in to EMD in part exchange for new EMD GP40 locomotives.

See also[edit]

List of GM-EMD locomotives


  • Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Kalmbach Publishing Co., Milwaukee, WI. ISBN 0-89024-026-4.
  • Hayden, Bob, ed. (1980). Model Railroader Cyclopedia-Volume 2: Diesel Locomotives. Kalmbach Books. ISBN 0-89024-547-9.