| Fukuoka Subway 4000 series | |
|---|---|
 The first 4000 series set in October 2024 | |
| Manufacturer | Kawasaki Railcar Mfg. |
| Replaced | 1000N series |
| Entered service | Planned for Autumn of 2024 |
| 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 on order by the Fukuoka City Transportation Bureau for use on the Hakozaki Line and Kūkō Line in Fukuoka, Japan.
The type is due to enter service in the Autumn of 2024.[1]