The E10 class are a class of 0-10-0RT steam locomotives built by Maschinenfabrik Esslingen, Swiss Locomotive and Machine Works, and Nippon Sharyo that hauled both passenger and freight trains on the rack railway between Sawahlunto and Padang in West Sumatra.

[1] These locomotives were capable of hauling coal trains up to 130 tons, and had four cylinders, with two of them being used to drive the rack gears.

[2] To increase coal traffic carried from Ombilin, the Staatsspoorwegen ter Sumatra's Westkust (SSS) decided to replace their older locomotives that could not handle the increasingly heavier trains, so larger locomotives were introduced because they could handle steeper gradients and had greater pulling power, thus allowing longer trains.

[2] Another locomotive, number E1016 from the first batch of E10s, was put on display at the Transportation Museum in Taman Mini Indonesia Indah.

[11] Attempts were made by the Sawahlunto Museum to return the relatively young locomotive into working order by fabricating their own spare parts, as the Esslingen factory had long been closed.

[14] In 2022, E1060 was placed back in operation to haul the Mak Itam tourist train, assisted by a BB303 diesel locomotive stationed in Sawahlunto, in case if E1060 fails.