Bowser HO Scale ready-to-run GMD SD40-2W diesels are based on the SD40-2 diesels built for Canadian National during the 1970s which incorporate the North American Safety Cab. The Bowser Executive Line model features accurate, railroad-specific and era-specific body variations, applied details and a smooth-running drive with can motor, flywheels, nickel silver wheels with RP25 flanges and knuckle couplers. This standard DC GMD SD40-2W locomotive features a 21-pin DCC decoder interface for easy conversion to DCC when you′re ready (decoder sold separately). Check out the entire line of Bowser HO Scale locomotives.WARNING: This product can expose you to chemicals including STYRENE, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov