Athearn Genesis G27377 HO Scale EMD SD90MAC Union Pacific UP 8026 DCC Sound

Introduced in 1995, the EMD SD90MAC was intended to become that builder’s most-powerful single-engine diesel locomotive. The new locomotive was to use EMD’s newly-developed 265H prime mover, featuring 6000 horsepower. However, this engine was experiencing technical problems in development, which led to the first groups of locomotives being delivered with the EMD 710G prime mover of 4300 horsepower (the intent being to retrofit these with the more-powerful 265H at a later date). Ironically, the technical problems with the 265H were never fully resolved, and no conversions were done. The 710G-engined SD90MACs outlasted their later 265H cousins in service by a wide margin, with some units only recently having been retired or sold by Union Pacific, and other railroads choosing to rebuild them for continued service.

The Athearn Genesis SD90MAC features all of the cutting-edge detail and operational features that are expected by discerning modelers: Working number boards and ground lights, see-through steps, numerous separately-applied details on the body and underframe, and a heavy die-cast frame for massive pulling power.

During the horsepower race of the 1990’s, EMD offered an “upgradable” SD90MAC. EMD’s 6000hp 256H prime mover was still being tested for reliability and issues at the time and UP needed power quickly. To combat this, EMD offered the SD90 with the 4300hp 710 prime mover in it’s place until the 256H prime mover was ready to be installed after successful testing. Unfortunately, the 256H was deemed too problematic and the conversion was never completed. UP classed these as SD9043MAC’s. Purchased in 1996, these big brutes were initially used in coal drag service before ultimately being used in other types of service. They were factory delivered with the “We Will Deliver” slogan. By the mid 2010’s, a large batch were sold to NS for rebuilding into SD70ACU’s.

FEATURES:

Leslie 3-chime horn
Front ditch lights
Large EMD plow
Illuminated ground lights
Illuminated number boards
Etched, see-through walkway steps
Dual Sugarcube speakers for optimal sound quality
Minimum radius: 18” — Recommended radius: 22”
Animated Roller Bearing Trucks
Coupler cut levers
Trainline hose
Full cab interior
Windshield wipers
Wire grab irons
Rubber MU hoses
See through cab windows
Walkway tread
Lift rings
Sander lines
DCC-ready features Quick Plug^TM plug-and-play technology with 21-pin NEM connector
Fine-scale Celcon handrails for scale appearance
Detailed fuel tank with fuel fillers, fuel gauges, and breather pipes
Body-mounted McHenry® operating scale knuckle couplers
Genesis driveline with 5-pole skew wound motor, precision machined flywheels, and multi-link drivetrain for trouble free operation
Eight-wheel drive with precision gears for smooth and quiet operation
All-wheel electrical pickup provides reliable current flow
Wheels with RP25 contours operate on all popular brands of track
LED Lighting for trouble free operation
Heavy die-cast frame for greater traction and more pulling power
Scaled from prototype resources including drawings, field measurements, photographs, and more
Accurately painted and printed paint schemes
Fully assembled and ready-to-run
Packaging securely holds the model for safe storage
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