The is an electric multiple unit train type operated by East Japan Railway Company (JR East) on Ōu Main Line services between and since 2026. Eleven two-car sets are to be built to replace the 719-5000 series fleet.
E723-5000 series The E723-5000 series was developed for use on the standard-gauge section of the Ōu Main Line. The first two sets, B-1 and B-2, were delivered from the Kawasaki Railcar Manufacturing Hyogo plant in April 2026.
The E723-5000 series entered service on 19 September 2026.
Interior Passenger accommodation consists of longitudinal seating throughout. Both cars have an accessible "free space".
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