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#3015

EMD SD7

🇺🇸 United States ·built by Electro-Motive Diesel· from 1951· model of 1500 hp Co′Co′ American diesel locomotive

EMD SD7, photo 1 of 4
1/4 Wikimedia Commons· CC BY-SA 2.0

what is it?

The EMD SD7 is a model of 6-axle diesel locomotive built by General Motors Electro-Motive Division between May 1951 and November 1953. It had an EMD 567B 16-cylinder engine producing 1,500 horsepower (1.12 MW) for its six traction motors. United States railroads bought 188 units.

base stats

  • speed 105 km/htop speed
  • power 1.1 MWpower output
  • weight 140 tin working order
  • built 188made in total

Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.

fun facts

  • First built 75 years ago, in 1951.
  • 1.1 MW is about 13 family cars (~85 kW each) flat out.
  • Weighs about as much as 23 African elephants (~6 t each).
  • 18.6 m long: about 4 cars parked nose to tail.

diesel locomotive: A diesel engine on board drives the wheels, usually through a generator (diesel-electric).

spec sheet

built
1951–1953
status
in service
number built
188
kind
Diesel-electric
traction
diesel
origin
🇺🇸 United States
builders
Electro-Motive Diesel
top speed
105 km/h
power
1.1 MW
gauge
1,435 mm standard gauge
wheel arrangement
C-C
length
18.6 m
weight
140 t

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.

Sources: Wikidata Q898446, Wikipedia: EMD SD7 (CC BY-SA 4.0).Updated 2026-10-25.

stan runge 704880d source