Athearn RTR 1267 HO Scale EMD SD40-2 Wisconsin & Southern WAMX 4170 DCC/Sound ESC The Sidewinder 4 is a

The Sidewinder 4 is a versatile ESC that can be used in a wide variety of applications

Adds 52g weight lower to centralize the vehicle's center of gravity

Multiple optional parts including stacks

Package includes body

Athearn RTR 1267 HO Scale EMD SD40-2 Wisconsin & Southern WAMX 4170 DCC/Sound ESC The Sidewinder 4 is aAthearn RTR 1267 HO Scale EMD SD40 2 Wisconsin & Southern WAMX 4170 DCC Sound The SD40 2 was introduced in January 1972 as part of EMDs Dash 2 series, responding to competing products from GE and ALCO. Reliability and versatility of the 3,000 horsepower SD40 2 made it the best selling model in EMDs history and the standard of the industry for several decades after its introduction. The SD40 2 was an improvement over the SD40, with modular electronic