[2] The first locomotives with a 4-6-2 wheel arrangement to operate on Korean rails was Sentetsu's パシイ (Pashii) class.

This was a group of twelve locomotives built by Baldwin in the United States and delivered to Korea in 1921.

[2] Originally numbered パシ901–パシ918, they were the most American in appearance due to the arrangement of their running boards, and, like American locomotives, had the driver on the left hand side; this proved unpopular with the local crews, as they were the only left-side-drive locomotives in Korea until the arrival of the USATC S160 class after the end of the Pacific War.

Running tender-ahead with no lights, it hit a South Korean Army lorry, which became wedged beneath the tender, derailing the locomotive and turning it around.

The service lives and subsequent fate of the Pashii-class engines that operated in the North is likewise unknown.