Limited edition - one time run of these roadnumbers! Model today′s railroading at WalthersMainline prices One of the backbones of contemporary loco fleets Prototypes in service 2005 to the present Easily handles 18′ radius curves (22′ or larger recommended) LED Lighting includes: High or low headlight per prototype Working front ditch lights Constant and directional lights Fully assembled 21-Pin DCC plug Same powerful drive as WalthersProto(R) locos featuring: 5-pole skew-wound motor 14:1 gear ratio Helical-cut gears for quiet operation and easy multiple unit operation All-wheel drive and electrical pickup Dual machined brass flywheels Heavy die cast metal chassis Molded drill starter points for grab irons - easily added with SD70ACe Diesel Detail Kit (910-251, sold separately) RP-25 metal wheels Proto MAX(TM) metal knuckle couplers Make your WalthersMainline SD70ACe more realistic with these accessories, available separately: SD70ACe Detail Kit Walthers Double Ended Pin Vise Walthers Drill Bits