The GF6C was an electric locomotive for freight duties built by General Motors Diesel in collaboration with ASEA of Sweden. Seven of these locomotives were built in 1983 and 1984, for use on the BC Rail's electrified Tumbler Ridge subdivision. Similar to EMD's GM6C testbed locomotive, the GF6C used a frame and running gear that was identical to that of EMD's popular SD40-2 diesel-electric locomotive, but had a wide cab and carbody similar to that of GMD's SD40-2F.