2 photos from Wikimedia Commons · credits & licences
- 1. 401Da-314, Grodzisk Mazowiecki, 2016-07-06: Ficek· CC BY 2.5 pl
- 2. 401Da-467 niedaleko Mrokocina: Viktorkowski· CC0
what is it?
Fablok 401D and 401Da (factory type Ls350E, initially series PKP SM31, later SM32) is a Polish switcher diesel locomotive, produced between 1966 and 1979 in a total of 501 units by Fablok in Chrzanów. The 401D locomotive was designed to replace the 1D diesel engine. Its design was completed in 1964, and a prototype was built two years later.
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 60 years ago, in 1966.
- 10.1 m long: about 2 cars parked nose to tail.
diesel locomotive: A diesel engine on board drives the wheels, usually through a generator (diesel-electric).
spec sheet
- built
- 1966–1979
- in service from
- 1971
- number built
- 500
- kind
- Diesel-electric
- traction
- diesel
- origin
- 🇵🇱 Poland
- builders
- Fablok
- operators
- Industrial and private companies
- top speed
- 60 km/h
- power
- 257 kW
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- C'
- length
- 10.1 m
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q9133393, Wikipedia: PKP class SM32 (CC BY-SA 4.0).Updated 2026-10-25.