As of 1 April 2015[update], the fleet consists of 26 cars, formed as five two-car first-batch sets (P1 to P5), and eight two-car second-batch sets (P101 to P108).[7]
The car bodies are constructed of stainless steel and are based on JR Central's 313 serieselectric multiple unit design.[9] The beading on the lower bodyside was discontinued on the second-batch units, giving flush body sides.[10] The second-batch units have cushions on the front-end skirts to prevent damage from collisions with deer.[8]
Seating in the first-batch units (P1 to P5) consists of transverse flip-over seats arranged 2+2 abreast, with interiors based on the 313-1300 series EMU design.[3] The second-batch sets (P101 onward) have longitudinal seating.[8]
The first two sets, P1 and P2, were delivered from the Nippon Sharyo factory in Toyokawa to Nagoya on 10 November 2010.[11] The remaining three sets, P3 to P5, were delivered on 23 February 2011.[12]
The type entered service on the Taketoyo Line from 1 March 2011.[13]
A second batch of KiHa 25 series trains is on order by JR Central, with a total of 52 new vehicles scheduled to be introduced between fiscal 2014 and 2015 on the Takayama Main Line, Taita Line, Kisei Main Line, and Sangu Line, at a cost of approximately 12 billion yen, replacing all remaining former JNR-era DMUs, including KiHa 40, KiHa 47, and KiHa 48 types.[14] The new batch of trains will include LED interior lighting.[14]
The first three new second-batch sets were delivered from the Nippon Sharyo factory in Toyokawa in September 2014.[10]
^ ab"JR東海 新型気動車キハ25形を製造" [JR Central introduces new KiHa 25 DMUs]. Tetsudō Daiya Jōhō Magazine. Vol. 40, no. 321. Japan: Kotsu Shimbun. January 2011. p. 73.
^新型ディーゼル車公開 [New diesel trains unveiled]. Yomiuri Online (in Japanese). Japan: The Yomiuri Shimbun. 24 December 2010. Retrieved 27 December 2010.[dead link]
^高山本線からキハ40系が引退 [KiHa 40 series withdrawn from Takayama Main Line]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2 July 2015. Archived from the original on 2 July 2015. Retrieved 2 July 2015.
^ ab紀勢本線・参宮線でキハ11形からキハ25形へ置換え [Switch from KiHa 11 to KiHa 25 on Kisei Main Line and Sangu Line]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 3 August 2015. Archived from the original on 4 August 2015. Retrieved 3 August 2015.
^JR車両のデータバンク [JR Rolling Stock Databank]. Japan Railfan Magazine (in Japanese). Vol. 55, no. 651. Japan: Koyusha Co., Ltd. July 2015. p. Supplement p.20.
^ abcd キハ25形2次車 [KiHa 25 2nd-batch DMUs]. Japan Railfan Magazine (in Japanese). Vol. 54, no. 644. Japan: Koyusha Co., Ltd. December 2014. pp. 62–63.
^"新形気動車キハ25形を導入" [New KiHa 25 DMU to be introduced]. Japan Railfan Magazine. Vol. 49, no. 575. Japan: Koyusha Co., Ltd. March 2009. p. 65.
^ abキハ25形（2次車）が日本車輌出場 [KiHa 25 (second-batch) trains delivered from Nippon Sharyo]. Rail Hobidas (in Japanese). Japan: Neko Publishing. 4 September 2014. Archived from the original on 4 September 2014. Retrieved 4 September 2014.
^キハ25形新製車2編成が日本車輌で落成 [Two newly built KiHa 25 sets delivered from Nippon Sharyo]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 11 November 2010. Archived from the original on 8 July 2018. Retrieved 11 November 2010.
^キハ25形第2陣 出場 [Second batch of KiHa 25 trains delivered]. Rail Hobidas (in Japanese). Japan: Neko Publishing. 23 February 2011. Archived from the original on 11 July 2011. Retrieved 23 February 2011.
^"【JR海】キハ25形 武豊線で営業運転開始" [JR Central KiHa 25 trains enter revenue service on Taketoyo Line]. Rail Hobidas (in Japanese). Japan: Neko Publishing. 2 March 2011. Archived from the original on 11 July 2011. Retrieved 2 March 2011.
^ ab"国鉄型気動車を完全置き換えへ、JR東海" [JR Central to totally replace all JNR diesel trains]. Tetsudo.com (in Japanese). Japan: Asahi Interactive Ltd. 14 March 2013. Archived from the original on 18 March 2013. Retrieved 14 March 2013.
Nishiwaki, Kōji (February 2012). "JR各社の新世代気動車の現状JR東海キハ25形" [The Current Situation of JR Group Modern DMUs: JR Central KiHa 25]. Japan Railfan Magazine. Vol. 52, no. 610. Japan: Koyusha Co., Ltd. pp. 80–83.
Taita Line
Kansai Main Line (rarely),
Taketoyo Line (previously)
Multiple units of Central Japan Railway Company
