1 photo from Wikimedia Commons · credits & licences
- 1. GP40X: KLWhitehead· CC BY-SA 3.0
what is it?
An EMD GP40X is a 4-axle diesel-electric locomotive built by General Motors Electro-Motive Division between December 1977 and June 1978. Power for this unit was provided by a turbocharged 16-cylinder 16-645F3B engine which could produce 3,500 horsepower (2,610 kW). 24 examples of this locomotive were built for North American railroads.
who runs it
base stats
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 61 years ago, in 1965.
- 2.6 MW is about 31 family cars (~85 kW each) flat out.
diesel locomotive: A diesel engine on board drives the wheels, usually through a generator (diesel-electric).
spec sheet
- built
- 1965–1978
- number built
- 23
- kind
- Diesel-electric
- traction
- diesel
- origin
- 🇺🇸 United States
- builders
- Electro-Motive Diesel
- operators
- Atchison, Topeka and Santa Fe Railway, Southern Railway, Union Pacific Railroad, Southern Pacific Transportation Company
- top speed
- 134 km/h
- power
- 2.6 MW
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- B-B
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q5323441, Wikipedia: EMD GP40X (CC BY-SA 4.0).Updated 2026-10-25.