* Limited Edition - One Time Run of These Roadnumbers! 
 
* Roadname-Specific Detailing  
* 14:1 Helical Gears for Smooth, Quiet Performance
* 5-Pole Skew-Wound High-Torque High-Efficiency Can Motor
* Machined-Brass Flywheels
* Low Speed Under 3 Scale MPH 
* LED Constant & Directional Headlights
* Proto MAX(TM) Metal Knuckle Couplers
 
By 1964, six-axle diesels were rapidly evolving from low speed luggers to fast freight engines. EMD continuously updated its Special Duty (SD) series with new models, and celebrated New Years Day 1966 by unveiling six locos powered by variations of its new 645 prime mover. At the top was the SD45, with an enormous 20-cylinder power plant cranking out 3600 horsepower. Timing couldn't have been better as American railroads experienced a surge in traffic and were ready to modernize their fleets. The SD45 proved popular for all types of assignments, and 1,260 were built through late 1971, when it was replaced by the SD45-2. Retirements began in earnest in the 1980s, but many were rebuilt and eventually sold to regional railroads. As of 2011, a few are still in use, and several are preserved in museums.
 
 
Detailed to match units in service from mid-1969 to 1980 with:
 
* Cab-Mounted Headlights 
* Nose-Mounted DRGW-Style Gyra-Lights  
* Long Blower Sill Duct  
* Snowplow on Front Pilot  
* No Footboards on Pilots  
* Standard Style Coupler Cut Lever  
* Leslie S-3L Horn  
* Large Sinclair Antenna  
* Dynamic Brake Vent  
* Rear Wheel-Type Hand Brake  
* Air Filter Box  
* Late Flexicoil Trucks with 2 High Outside Mounted Brake Cylinders

Prototype photo courtesy of Chuck Conway.