Fukuoka Subway 4000 series
| Fukuoka Subway 4000 series | |
|---|---|
A 4000 series set in April 2025 | |
| In service | 29 November 2024 – present |
| Manufacturer | Kawasaki Railcar Mfg. |
| Replaced | 1000N series |
| Number under construction | 96 vehicles (16 sets) |
| Number built | 12 vehicles (2 sets) |
| Formation | 6 cars per trainset |
| Operators | Fukuoka City Transportation Bureau |
| Lines served | |
| Specifications | |
| Traction system | SynTRACS |
| Traction motors | Synchronous reluctance motor |
The Fukuoka Subway 4000 series (福岡市交通局4000系) is an electric multiple unit (EMU) train type operated by the Fukuoka City Transportation Bureau on the Hakozaki Line and Kūkō Line in Fukuoka, Japan, since 2024. Eighteen 6-car sets are to be built.