KiHa 40 series

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KiHa 40 series KiHa 41 KiHa 47 KiHa 48
A pair of JR East KiHa 40 series units on the Karasuyama Line in January 2017
In service	1977–present
Manufacturer	Fuji Heavy Industries, Niigata Tekkō
Replaced	KiHa 10 series [ja] KiHa 30 KiHa 130
Constructed	1977–1983
Number built	888 vehicles
Number in service	714 vehicles (as of 2018)[1]
Successor	KiHa E120 HB-E300 series EV-E301 series GV-E400 series EV-E801 series BEC819 series H100 series 733 series
Formation	Various
Operators	JNR (1977–1987) JR Central (1987–2016) JR Hokkaido JR East JR-West JR Shikoku JR Kyushu (1987–present) Myanmar Railways (2011–present) Nishikigawa Railway (2017–present) Kominato Railway (2020–present) Hojo Railway (2022–present) State Railway of Thailand (future)
Depots	Various
Lines served	Various
Specifications
Car body construction	Steel
Car length	21,300 mm (69 ft 11 in)
Width	2,900 mm (9 ft 6 in)
Doors	2 per side
Maximum speed	95 km/h (59 mph)
Transmission	DW10 (hydraulic)
Multiple working	KiHa 58 (San'in Main Line only)
Track gauge	1,067 mm (3 ft 6 in) 1,000 mm (3 ft 3+3⁄8 in) metre gauge (Myanmar, Thailand)

The KiHa 40 series (キハ40系, Kiha-yonjū-kei) is a diesel multiple unit (DMU) train type introduced by Japanese National Railways (JNR) in 1977 and operated by all Japan Railways Group companies on suburban and rural services in Japan.^[2] Since 2017, the train type has seen use by other private railway companies in Japan, following the removal of services by Japan Railways groups. Additionally, it has also seen use in overseas operations in Myanmar since 2011 and is also scheduled to be used in Thailand.