The first 7 of 55 GE ES43ACi diesel locomotives were officially delivered to Pakistan Railways on January 23 in Karachi. Built in Erie in the USA, the 1676mm gauge locomotives will be delivered until mid-2017. The locomotives are designated by Pakistan Railways as the GEU-40 Class. The first locomotives are expected to enter service on coal trains between Port Qasim in Karachi and a coal-powered power plant at Sahiwal.
The ES43ACi for Pakistan Railways houses a GEVO12 12-cylinder diesel engine with a power output of 3400 kW, features a 8000-litre fuel tank and has a maximum speed of 120 km/h. The six-axle design supports a weight 137 tonnes.