The following is a list of locomotives produced by GE Transportation Systems, a subsidiary of Wabtec. All were/are built at Fort Worth, Texas or Erie, Pennsylvania, in the United States. Most (except the electrics, the switchers, the AC6000CW, and the Evolution series) are powered by various versions of GE's own FDL diesel prime mover, based on a Cooper Bessemer design and manufactured at Grove City, Pennsylvania. GE is one of the largest locomotive manufacturing companies. This list includes locomotives built solely for export outside of North America. Freight locomotives Early locomotives, switchers and special purpose Switchers {|class="wikitable sortable" style="width: 100%" !Model designation!!Build year!!Total produced!!class="unsortable"|AAR wheel arrangement!!Prime mover!!|Power output!!class="unsortable"|Image |- align = "center" | 20-ton Boxcab||1938 ||5 || B || Cummins || || |- align = "center" | 23-ton Boxcab||1939 ||6 || B || Cummins || || |- align = "center" | 23-ton||1941 ||29 || B || Cummins || || |- align = "center" | 25-ton ||1941–1974 ||510 || B || Cummins || || |- align = "center" | 35-ton|| || ||B || || || |- align = "center" | 43-ton|| || ||B-B || || || |- align = "center" | 44-ton || 1940–1956 || 386 ||B-B || Caterpillar D17000 × 2 (most)Hercules DFXD × 2 (11)Buda 6DH1742 × 2 (10)Caterpillar D342 × 2 (last 4) || || |- align = "center" | 45-ton || 1940–1956 || ||B-B || Cummins × 2 || hp || |- align = "center" | GE 45-Ton switcher "Drop Cab"||1944–1949||103|| B-B || || || |- align = "center" | GE 45-Ton switcher "Off-Center Cab"||1941||9|| B-B ||Cooper Bessemer EN6 || || |- align = "center" | GE 46-Ton switcher "Drop Cab"||1955||3|| B-B || || || |- align = "center" | 47-ton "Drop Cab"||1943–1953 ||58 ||B-B || || || |- align = "center" | 50-ton|| || ||B-B || || || |- align = "center" | GE 55-Ton switcher "Off-Center Cab"||1931|| 7 || B-B || Ingersoll Rand 300 || || |- align = "center" | GE 57-Ton switcher "Off-Center Cab"||1935|| 1|| B-B || Cooper Bessemer ENL6 || || |- align = "center" | 60-ton "Boxcab" ||1928–1930 || 2 ||B-B || Ingersoll Rand 300 || || |- align = "center" | 60-ton "Off-Center Cab"||1935–1941 || 10 ||B-B || Ingersoll Rand 300 (1) Ingersoll Rand 400 (2) Cooper Bessemer EN8 (3) Cooper Bessemer ENL8 (4) || || |- align = "center" | GE 61-Ton switcher "Off-Center Cab"||1937|| 1|| B-B || Cooper