• DCC Ready
• 5 Pole Can Motor with Flywheels
• Accepts Standard NMRA 6 Pin EUN651 Decoder
• All-wheel drive
• Heavy metal die-cast chassis

The EMD SW1 is a 600 HP diesel-electric switcher built by General Motors subsidiary, Electro Motive Corporation; subsequently renamed Electro Motive Division; between late 1938 and late 1953. As with most long-running locomotive production models many revisions/upgrades were made during the course of production. A very noticeable change was in the shape of the two windows located in the front of the cab; originally curved to follow the roofline they were changed to a flat top in mid-1950 to simplify the manufacturing process. Along the same lines- the two stage taper used in the construction of the hood in front of the cab became a simpler- less costly single stage taper in later production. The very early production units had a minimal exhaust stack but in operation this left much to be desired as the exhaust would be direct back into/toward the cab impairing the crew visibility. These early units were railroad modified with extensions that were welded on- while later production would come to bear the EMD trademark conical switcher stack. Depending on production dates and railroad modifications- numerous headlight configurations were possible.