One of EMD′s most succesful diesels, the GP7 was plain but tough and some are still going strong after nearly 60 years of service! A great addition to your HO Scale roster, these WalthersProto models are packed with features that include: Limited-edition - one time run of these roadnumbers Based on units in service from 1950 to the present Improved hood contours Road-specific details Wire grab irons and lift rings Available with ESU LokSound Select sound for DCC and DC layouts 21-pin DCC plug Pre-installed 28mm round speaker Warm white LED constant and directional headlights 14:1 helical gears for ultra-quiet and smooth running 5-pole, skew-wound, high-torque, high-efficiency can motor Easy multiple-unit operation Superb paint and lettering Heavy die-cast metal underframe Proto MAX(TM) metal knuckle couplers Specific features of this unit include: Based on units in operation from the 1950s through the early 1970s Brass Nathan M3 air horn Brass roof mounted bell Non-dynamic long hood Early Pyle dual sealed beam headlights Winterization hatch with etched metal grill Roof-mounted air tanks with piping Etched metal canvas style sunshades Tall MU stands 1200-gallon fuel tank with dual 600-gallon water tanks Roller bearing journals Short-hood forward operation