The EMD Model 40 was a two-axle diesel-electric locomotive built by Electro-Motive Corporation, and its corporate successor, General Motors' Electro-Motive Division (EMD) between August 1940 and April 1943. Nicknamed "critters", eleven examples of this locomotive were built. Powered by twin General Motors Detroit Diesel 6-71 diesel engines, which produce a combined 300 horsepower (224 kW). Original buyers included the Electro-Motive Corporation/EMD Plant #2 switcher, Defense Plant Corporation-4 units, the United States Army 3 units, and the United States Navy 2 units, General Motors Cleveland Diesel Division 1 unit.
- s/n 1134 Former EMC 1134.Demonstrator,Later DVR #20,Museum of Industry, Stellarton, Nova Scotia
- s/n 1308 Former US Rubber, Old Ben Coal, SCRAPPED
- s/n 1309 Former US Rubber, Penn Dixie Cement no #, Lake Superior Railroad Museum/Duluth, Minnesota
- s/n 1834 Former USAX 7403,DPC #1 Cushing Stone Company, Amsterdam, New York
- s/n 1835 Former DPC #2-American steel foundry 5g1,Hoosier Valley Railroad Museum/North Judson, Indiana
- s/n 2284 Former USAX 7952, Former Acme Newport steel,Newport steel,KY NPTX #1. Owned and restored by Professional Loco services in East Chicago, Indiana
- s/n 2285 Former USAX 7953,Walkersville Southern Railroad, Walkersville, Maryland
- s/n 2286 Former USAX 7954-SCRAPPED
- s/n 2287 Former USN Travel Town Museum, Los Angeles, California
- s/n 2288 Former USN #4-York County Heritage Trust, York, Pennsylvania
- s/n 2289 Former GM Cleveland-SCRAPPED
- Extra 2200 South Issue #53 pages 22–23.