MTH - RailKing Scale Diesel Locomotives - SW-1 Switcher - O Scale 3 Rail

The birth of the SW1 in January 1939 was a historic moment for the Electro-Motive Corporation. The tiny switcher ("S" for six hundred horsepower, "W" for welded frame) was EMC's first truly mass-produced loco, the first with Electro-Motive's own electrical gear, and the first mass-produced engine powered by the 567 diesel motor - which would become the backbone of first-generation American diesel power. Popular with railroads large and small, the SW1 stayed in production for 15 years, and many remained in service for three or more decades.