You are purchasing a new Athearn ATH86842 HO SW1000 DCC & Sound Burlington Northern Santa Fe BNSF #3617. SW1000 LOCOMOTIVE NEW FEATURES SW1000 LOCOMOTIVE STANDARD FEATURES BNSF FEATURES An EMD SW1000 is a 4 axle diesel switcher locomotive built by General Motors Electro-Motive Division between June 1966 and October 1972.