The Pureko-class (プレコ) locomotives were a group of steam tank locomotives with 2-6-2wheel arrangement of used by the Chosen Government Railway (Sentetsu) in Korea. The "Pure" name came from the American naming system for steam locomotives, under which locomotives with 2-6-2 wheel arrangement were called "Prairie".[1]
The Baldwin Locomotive Works of the United States built two 2-6-2 tank locomotives in 1911, which were operated by the privately owned Domun Railway after 1920.[citation needed] Both were taken over by Sentetsu after the nationalisation of the Domun Railway in 1929; after the general renumbering of 1938 they were designated プレコ (Pureko) class and numbered プレコ1 and プレコ2.[3]