|Builder||General Motors Electro-Motive Division (EMD)|
|Build date||April 1960 – March 1963|
|AAR wheel arr.||C-C|
|Gauge||4 ft 8 1⁄2 in (1,435 mm)
5 ft 3 in (1,600 mm), Brazil
|Prime mover||EMD 567D1|
|Power output||1,800 hp (1.3 MW)|
An EMD SD18 is a 6-axle diesel locomotive built by General Motors Electro-Motive Division between April 1960 and March 1963. Power was provided by an EMD 567D1 16-cylinder engine which generated 1,800 hp (1.3 MW).
|Bessemer and Lake Erie Railroad||7||851-857|
|Chesapeake and Ohio Railway||19||1800–1818|
|Chicago and Illinois Midland Railway||2||60-61|
|Duluth, Missabe and Iron Range Railway||19||175-193|
|Reserve Mining Co.||7||1226–1232|
|RFFSA (export to Brazil)||45||3401-3445|
|Korea National Railroad||15||6001-6015|
At least four SD18s have been preserved. Chop-nosed Duluth, Missabe & Iron Range 193 is now an operating member of the Lake Superior Railroad Museum collection. They also have DM&IR 316 in their collection, which is an "SDM"; an EMD SD18 given EMD 645 power assemblies by the Missabe. However, it is still labeled as an SD18.
The South Branch Valley Railroad also regularly operates former Bessemer & Lake Erie SD18 853 as their 182.
A fourth unit is Chesapeake and Ohio 7311, in Chessie System colors and with VLIX reporting marks. It is stored on the Chesapeake And Indiana Railroad in the town of Malden, IN and is not carded to run. This SD18 rides on Alco trucks.
Additionally, both SD18s owned by the Chicago & Illinois Midland are still in operation, and are used by the Illinois Midland Railroad, the successor to the CIM.
- Pinkepank, Jerry A. (1973). The Second Diesel Spotter’s Guide. Milwaukee, WI: Kalmbach Publishing Company. ISBN 0-89024-026-4.