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#3509

SNCF Class Y 7400

🇫🇷 France ·built by Établissements Billard· from 1959

SNCF Class Y 7400, photo 1 of 10
1/10 Wikimedia Commons· CC BY-SA 2.0 fr

what is it?

The Y 7400 class of small shunters is France's most numerous with 488 locomotives in the production build. The first 120 were built by Decauville, with further batches built by De Dietrich (105) and Moyse (263). They have the 0-4-0 ("B") wheel arrangement, 150 kW diesel engines and mechanical transmission.

who runs it

base stats

  • speed 60 km/htop speed
  • power 129 kWpower output
  • weight 32 tin working order
  • built 1made 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 67 years ago, in 1959.
  • Weighs about as much as 5 African elephants (~6 t each).

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

spec sheet

built
1959–1963
number built
1
kind
Diesel
traction
diesel
origin
🇫🇷 France
builders
Établissements Billard, Decauville, De Dietrich, Locotracteurs Gaston Moyse
operators
Société nationale des chemins de fer français
top speed
60 km/h
power
129 kW
gauge
1,435 mm standard gauge
wheel arrangement
0-4-0
length
8.9 m
weight
32 t

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

Sources: Wikidata Q3571192, Wikipedia: SNCF Class Y 7400 (CC BY-SA 4.0).Updated 2026-10-25.

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