, the railway owns and operates a fleet of 14
KiHa 200 series diesel cars, built by
Nippon Sharyo between 1961 and 1977, and numbered 201 to 214. All except cars 209 and 210 are air-conditioned.
Tsugaru Line,
Gono Line and
Oga Line, and they had been transferred to Kominato Railway. The vehicles, which were adopted in 2020, KiHa 40-2021 and KiHa 40-2026 were named KiHa 40-1 and KiHa 40-2 respectively, replaced part of series KiHa 200, have been operated as regular trains since they were operated at the first run as
Express "SATOYAMA" in 23 April 2020. The vehicles, which were adopted in 2021, KiHa 40-2018, KiHa 40-2019 and KiHa 40-1006 were named KiHa 40-3, KiHa 40-4 and KiHa 40-5 respectively. File:Kominato-Kiha200-212.jpg|KiHa 200 DMU car in November 2021 File:小湊鐵道キハ40 2.jpg|KiHa 40 which remains JR East color From 15 November 2015, a open-sided tourist train hauled by a replica steam locomotive powered by a diesel engine entered service on the line, operating generally at weekends only. The train consists of four coaches, two of which have open sides, with a total capacity of 144 passengers. It is hauled by diesel locomotive number DB4, a replica of a German
Orenstein & Koppel-built steam locomotive formerly operated on the line from 1924 until the 1940s, powered by a Volvo diesel engine. File:Satoyama Torokko 02.JPG|Diesel locomotive DB4 on the
Satoyama Torokko in April 2017 File:Kominato-Satoyama-Trolley-train.jpg|
Satoyama Torokko passenger car November 2021 ==History==