In order to be able to transport heavier freight trains, the Prussian state railway KPEV commissioned the development of a four-coupled tender locomotive in 1911. The experience gained with the larger G10 series was incorporated into the development of the locomotive, initially known as the G8 reinforced design, and so the 1260 hp new design proved to be on a par with its larger sister in many respects and even superior in terms of driving characteristics on winding routes. That's why the KPEV procured a total of 4934 units. With its top speed of 55 km/h, it met the requirements of medium-duty freight train service for decades. Thanks to the axle load of 17.6 t, many locomotives were used in heavy shunting services from the 1950s onwards. It was not until 1973 that the two German state railways were able to do without the services of the old Prussians.

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