#4979
EMD SD90MAC
🇺🇸 United States ·built by Electro-Motive Diesel· from 1995· model of American diesel locomotive
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3 photos from Wikimedia Commons · credits & licences
- 1. Union Pacific SD90 8543: KLWhitehead· CC BY-SA 4.0
- 2. NS 7332 EMD SD90MAC (33276291851): Raymond Wambsgans from Akron Ohio, USA· CC BY-SA 2.0
- 3. CP SD90MAC No 9155 (8061975469): Peter Broster· CC BY 2.0
what is it?
The EMD SD90MAC is a model of 6,000 hp (4,470 kW) C-C diesel-electric locomotive produced by General Motors Electro-Motive Division (EMD). It is, with the SD80MAC, the largest single-engined locomotives produced, and among the most powerful diesel-electric locomotives made by EMD, surpassed only by the dual-engined DDA40X. The SD9043MAC is the 4,300 hp (3,210 kW) variant, using a 16-cylinder 710G engine instead of the H-engine, which was originally intended as a temporary alternative while EMD tried to solve the H-engine's issues. However, the accompanying upgrade program was never utilized by its customers.
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 31 years ago, in 1995.
- 4.5 MW is about 53 family cars (~85 kW each) flat out.
- Weighs about as much as 31 African elephants (~6 t each).
- 24.4 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
- 1995–2000
- number built
- 400
- kind
- Diesel-electric
- traction
- diesel
- origin
- 🇺🇸 United States
- builders
- Electro-Motive Diesel
- top speed
- 113 km/h
- power
- 4.5 MW
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- Co’Co’
- length
- 24.4 m
- weight
- 188 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q5323476, Wikipedia: EMD SD90MAC (CC BY-SA 4.0).Updated 2026-10-25.