The South African Class GK 2-6-2+2-6-2 of 1923 is a South African steam locomotive from the South African Railways era.In 1923 the New Cape Central Railway placed two Garratt articulated steam locomotives with a 2-6-2+2-6-2 Double Prairie wheel arrangement in service. In 1925 when the New Cape Central Railway was amalgamated into the South African Railways the two Garratts were renumbered and designated Class GK.