Introduced in 2003 to comply with tougher emission standards, and more popularly known among railfans and modelers as GEVOs, these big engines have quickly become one of the most popular locos worldwide. Designated as the ES44 (Evolution Series, 4,400 horsepower), prototype variations in North American service include locos with DC or AC traction motors and buyers have also specified center idler axles, as well as high adhesion or steerable trucks.

WalthersMainline GE ES44 Evolution Series GEVO diesels feature:

• One time run of these roadnumbers, order now - limited quantity available
• The most popular prototype diesel in North America
• Thousands in service from 2003 to the present
• ESU Sound for DCC and DC layouts featuring:
• 4 function outputs with brightness control by CV
• Fully DCC compatible
• 14, 28, 128 speed steps
• Dual mode DC and DCC
• 4 air horns changeable by CVs
• 2 bells changeable by CVs
• Full 8-notch prime mover sounds
• Compressor
• Dynamic brake
• Multiple realistic lighting effects
• 21-pin DCC plug
• 2- or 4-vent dynamic brake vent as appropriate
• Easily handles 18" radius curves (22" or larger recommended)
• Six powered axles per unit
• LED Lighting includes:
• Correct headlight position per prototype
• Working front ditch lights
• Three truck styles to match prototypes:
• Standard high-adhesion
• Steerable (nonworking)
• C4 A1A center idler axle
• Same powerful drive as WalthersProto(R) locos featuring:
• Five-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
• Constant and directional LED lights
• Correct profile radiator grilles and rooftop walkway surface details
• Molded drill starter points for grab irons - easily added with the GE ES44 Evolution Series Diesel Detail Kit (910-250, sold separately)
• RP-25 metal wheels
• Proto MAX(TM) metal knuckle couplers
• Fully assembled