Pre-Order | Next Shipment January 2024
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HO U50 Locomotive with DCC & Sound, SF #1657

Item No.
Athearn - ATHG41183
Pre-Order | Next Shipment January 2024
Brand Logo
4 out of 5 Customer Rating

HO U50 Locomotive with DCC & Sound, SF #1657

Item No.
Athearn - ATHG41183
Product $469.99
Add Ons
Estimated Total: $469.99

HO U50 Locomotive with DCC & Sound, SF #1657

Item No.
Athearn - ATHG41183
4 out of 5 Customer Rating
Product $469.99
Add Ons
Estimated Total: $469.99
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Product Details


  • Beacon (Flash function in DCC only)
  • Classification lights (Function in DCC only)
  • Working Truck lights
  • Number board lights
  • Separate see-through air intake grills
  • MU hoses

Our Legendary Liveries series seeks to explore the “what if” questions that some folks like to indulge in. Like many other railroads in the late 1950’s and early 1960’s Santa Fe was looking to push the envelope in locomotive horsepower by purchasing engines like EMD’s 2400-horsepower SD24, Alco’s 2400-horsepower RSD-15 and GE’s new groundbreaking 2500-horsepower U25B in 1962. Might they have joined their western counterparts UP and SP and taken a gamble on the U50 too? We think that it looks sharp in Santa Fe’s dress blues.


  • Illuminated truck lights
  • Illuminated classification lights
  • Illuminated number boards
  • See-through air intakes
  • 4-cube speakers
  • Minimum radius: 18” — Recommended radius: 22”

  • Coupler cut levers
  • MU hoses
  • Trainline hose
  • See-through cab windows
  • Full cab interior
  • Walkway tread
  • Windshield wipers
  • Wire grab irons
  • DCC-ready features Quick Plug™ plug-and-play technology with 21-pin NEM connector
  • Fine-scale Celcon handrails for scale appearance
  • Detailed fuel tank with fuel fillers, fuel gauges, breather pipes, and retention tanks
  • 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
  • All-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


What are Legendary Liveries? An Athearn exclusive, they are the ultimate answer to “What if?” Featuring some of the most popular railroad paint schemes of all time, these models are perfect for collecting, proto-freelancing, or just plain fun! Whether company proposed paint schemes, canceled locomotive orders, or alternate takes on history, Legendary Liveries are fun and unique additions to any roster. Enjoy these items, and answer the ultimate railroad question of: “What if?”


  • Onboard DCC decoder with SoundTraxx Tsunami2 sound
  • Four cube speakers for optimal sound quality
  • Sound units operate in both DC and DCC
  • Full DCC functions available when operated in DCC mode
  • Engine, horn, and bell sounds work in DC
  • All functions NMRA compatible in DCC mode
  • Precision slow speed control
  • Program a multiple unit (MU) lash up with lead unit only horn, bell, and lights
  • Many functions can be altered via Configuration Value (CV) changes
  • CV chart included in the box


In 1963, the diesel horsepower race had just reached 2,500 horsepower and the only way to get 5,000 horsepower was by putting two diesel engine and generator sets onto one chassis. Given the wheel slip and traction motor technology at the time, eight traction motors and powered axles were needed to convert the horsepower into pulling power. EMD had already produced the DD35, two cab less GP35s on one chassis. General Electric’s answer was to do the same with two U25Bs, which created the U50.

The U50 was 83 feet 6 inches long and towered over most contemporary locomotives at 15 feet 10 inches tall. They weighed in at 559,620 pounds and produced 139,175 pounds of starting tractive effort. Inside the hood were two FDL-16 diesel engines, each with a generator, full radiator, and dynamic brake setup. The U50 rode on two sets of two-axle AAR-B trucks mounted on a span bolster. The trucks were recycled from the scrapped gas turbines. Up front was a tall, blunt nose cab without a front walkway, which gave the U50 its unique appearance.

Product Specifications

Axles 8
Lighted LED
Sound Tsunami2
DCC Equipped
Prototype Manufacturer GE