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You can help Wikipedia by expanding it.The Seibu 8000 series (西武8000系) is a commuter electric multiple unit (EMU) train type operated by the private railway operator Seibu Railway in Japan since end of May 2025.

[1] This is one of the vehicles given and received from Odakyu Electric Railway as a type of "Sustainable Car[Reference 1] (サステナ車両)".

[1] The 8000 series is planned for use on Kokubunji Line services.

[2] On 7 January 2025, Seibu announced that the first 8000 series sets would enter service at the end of May 2025.