description EMD E7 Overview
The EMD E7 is a streamlined diesel-electric passenger locomotive manufactured by the Electro-Motive Division of General Motors between 1945 and 1949. Featuring a distinctive slanted "bulldog" nose, it was powered by two 12-cylinder 567A engines producing a total of 2,000 horsepower. A total of 428 cab-equipped A units and 82 cabless B units were built, making it a highly successful model for North American passenger railroads during the transition from steam.
help EMD E7 FAQ
Why did railroads buy both EMD E7 A units and cabless B units?
An E7 A unit contained a driving cab, while a B unit supplied additional power without duplicating the crew controls. Railroads combined them into multi-unit consists suitable for heavy passenger trains, and 510 A and B units were delivered.
Which passenger trains were commonly pulled by EMD E7 locomotives?
E7s appeared on major postwar streamliners operated by railroads such as the Pennsylvania Railroad, Southern Railway, and Gulf, Mobile and Ohio. Their streamlined noses and passenger gearing made them especially well suited to prestigious long-distance services.
What engines powered the EMD E7?
Each E7 used two EMD 567-series diesel engines connected to electrical generators and traction motors. Together they produced about 2,000 horsepower, continuing the twin-engine layout used throughout much of EMD's E-series.
Did any original EMD E7 locomotives survive into preservation?
Yes. Pennsylvania Railroad E7 No. 5901 is preserved at the Railroad Museum of Pennsylvania, providing a rare surviving example of the type built between 1945 and 1949.
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