The SD39 is a model of 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division between August 1968 and May 1970. 54 were built for American railroads.
Boston & Maine 690 (ex Illinois Terminal 2301) with Train EDRJ (East Deerfield–Rotterdam Jct) about to enter Hoosac Tunnel
FEPASA 2360, an SD39-2M, in 2011.
The EMD SD40 is a model of 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division between January 1966 and August 1972. 1,268 locomotives were built between 1966 and 1972. I
Southern Pacific 7342, an SD40R, in 1980
GMD SD40 KCSM 3029 in Caltzonzin Station
GTW/CN #5945, a former GMD-built CN SD40, rebuilt to SD40-3 standards.
Last Mountain Railway SD40-3 at Aylesbury, Saskatchewan