10 photos from Wikimedia Commons · credits & licences
- 1. SNCF loco 7832: Wikimedia Commons· CC BY-SA 2.0 fr
- 2. Angouleme gare hiver: Jack ma· CC BY-SA 3.0
- 3. Ax les Thermes Gare: Chris0693· CC BY-SA 3.0
- 4. Dépôt-de-Chambéry - Locomotives - 20131103 140001: Poudou99· CC BY-SA 3.0
- 5. Dépôt-de-Chambéry - Y7887 - IMG 3560: Poudou99· CC BY-SA 3.0
- 6. Gare de triage. Saint-Pierre-des-Corps (Indre-et-Loire). (7006107158): Daniel Jolivet· CC BY 2.0
- 7. Gare de triage. Saint-Pierre-des-Corps (Indre-et-Loire). (7006108214): Daniel Jolivet· CC BY 2.0
- 8. 01.08.85 Clermont-Ferrand Y7434: Phil Richards· CC BY-SA 4.0
- 9. Dépôt-de-Chambéry - Rotonde - Y7504 - 20131103 144718: Poudou99· CC BY-SA 3.0
- 10. Dépôt-de-Chambéry - Rotonde - Y7504 - 20131103 145223: Poudou99· CC BY-SA 3.0
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
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.
