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#3921

EMD SDP45

🇺🇸 United States ·built by Electro-Motive Diesel· from 1967· North American diesel locomotive class

EMD SDP45, photo 1 of 2
1/2 Wikimedia Commons· CC BY-SA 3.0

what is it?

The SDP45 is a six-axle, C-C, 3,600-horsepower (2,680 kW) diesel-electric locomotive built by General Motors' Electro-Motive Division of La Grange, Illinois. It was a passenger-hauling version of the SD45 on a stretched locomotive frame with an extended, squared-off long hood at the rear, aft of the radiators, giving space for a steam generator for passenger train heating. This steam generator placement followed the pattern set by the SDP35 and SDP40.

base stats

  • power 2.7 MWpower output
  • weight 180 tin working order
  • built 52made 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 59 years ago, in 1967.
  • 2.7 MW is about 32 family cars (~85 kW each) flat out.
  • Weighs about as much as 30 African elephants (~6 t each).
  • 21.3 m long: about 5 cars parked nose to tail.

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

spec sheet

built
1967–1970
number built
52
kind
Diesel-electric
traction
diesel
origin
🇺🇸 United States
builders
Electro-Motive Diesel
top speed
—
power
2.7 MW
gauge
1,435 mm standard gauge
wheel arrangement
C-C
length
21.3 m
weight
180 t

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

Sources: Wikidata Q5323481, Wikipedia: EMD SDP45 (CC BY-SA 4.0).Updated 2026-10-25.

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