Between 1865 and 1872, the StEG had a total of 93 Engerth type supporting tender locomotives built for passenger transport. These had two coupled axles and were designed with a wheel diameter of 1,580 mm for a top speed of 70 km/h. The cylinders were between the wheels of the first coupled axle and the drive was on the second coupled axle. Some of the locomotives were manufactured by Cockerill in Belgium and some in StEG's own workshops.

Upon the nationalization in 1891, the locomotives that were based on the Austrian lines went to the kkStB and became the series 14 there. These 27 locomotives were scrapped by 1918.

On Hungarian territory, 37 locomotives came to the MÀV and were designated there as TII No. 1301 to 1337. From the late 1890s they were replaced in passenger service by newer locomotives. From 1909 the first were scrapped. In 1911 the 31 remaining locomotives became the series 250. Of the four locomotives that remained after the First World War, the last one was scrapped in 1924.