The EMD F9 is a Diesel-electric locomotive produced between February 1953 and May 1960 by the Electro-Motive Division of General Motors (EMD) and General Motors Diesel (GMD). It succeeded the F7 model in GM-EMD's F-unit sequence. Final assembly was at GM-EMD's La Grange, Illinois plant. The F9 was also built in Canada by General Motors Diesel at their London, Ontario plant. A total of 101 cab-equipped lead A units and 156 cabless booster B units were built. The F9 was the fifth model in GM-EMD's highly successful "F" series of cab unit diesel locomotives. A F9 can be distinguished reliably from a late F7 only by the addition of an extra filter grille ahead of the front porthole on the side panels on A units. Internally, the use of an 567C prime mover increased power to from the F7's . By the time cab units such as the F9 were built, railroads were turning to the road switcher-style of locomotive, and the F9 was succeeded in most part by the EMD GP9. Engine and powertrain The F9 used a 16-cylinder 567C series Diesel engine developing at 800 rpm. The 567 was designed specifically for locomotive applications, being a 45 degree V-type two-stroke design, with displacement per cylinder, for a total of . A D.C. generator powered four D37 traction motors, two on each Blomberg B truck. EMD has built all of its major components since 1939. Original buyers Locomotives built by EMD at La Grange, Illinois Locomotives built by GMD at London, Ontario See also List of GM-EMD locomotives List of GMD Locomotives References Notes Bibliography External links EMD F9 and F9B locomotives data sheet B-B locomotives F09 F09 Diesel-electric locomotives of the United States Railway locomotives introduced in 1953 Locomotives with cabless variants Standard gauge locomotives of Canada Passenger locomotives Standard gauge locomotives of the United States Standard gauge locomotives of Mexico Diesel-electric locomotives of Canada Diesel-electric locomotives of Mexico Streamlined diesel locomotives