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Athearn - HO Scale - EMD SD-40 Diesel Locomotive - with DCC & Econami Sound - Baltimore & Ohio (B&O) #7598 - Dark Blue/Orange with Orange/White Lettering (Era: 1975+) (SKU 140-2877)

Available On: December 1, 2026

 

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PROTOTYPE SPECIFIC INFORMATION

In 1966, EMD updated its locomotive catalog with entirely new models, all powered by the new 645 diesel engine. The SD40 had 3,000 hp from a turbocharged V16. 856 examples of this locomotive model were built for American railroads, 330 were built for Canadian railroads, and 72 were built for Mexican railroads.

This page is based on the copyrighted Wikipedia article “EMD SD40”; it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC-BY-SA). You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA.

 

SD40 LOCOMOTIVE FEATURES:

  • LED lighting
  • Photo-etched stainless steel windshield wipers
  • Separately applied wire grab irons and air tanks
  • Curved radiator fan grab iron
  • Coupler cut levers
  • Rubber MU hoses
  • See through cab windows, dynamic brake and radiator fans
  • Fine scale handrails molded in engineering plastic
  • Exhaust stack
  • Frame mounted bell (unless noted)
  • Detailed 4000 gallon fuel tank (unless different capacity is noted)
  • Flexicoil-C trucks with high or low brake cylinders (per prototype)
  • McHenry scale knuckle couplers – Kadee compatible
  • All-wheel drive with precision gears for smooth & quiet operation
  • All-wheel electrical pickup provides reliable current flow
  • DCC-ready features Quick Plug plug-and-play technology with 21-pin NEM connector
  • Improved 5-pole skew wound can motor with flywheels and multi-link drivetrain
  • Wheels with RP25 contours operate on all popular brands of track
  • Highly-detailed, injection molded body
  • Interior plastic blister safely holds the model for convenient storage
  • Minimum radius: 18” — Recommended radius: 22”

 

SOUND-EQUIPPED MODELS ALSO FEATURE

  • Onboard DCC decoder with SoundTraxx Econami sound
  • Single cube speaker for optimal sound quality
  • Sound units operate in both DC and DCC
  • Engine, horn, and bell sounds work in DC
  • Some functions are limited in DC
  • All functions NMRA compatible in DCC mode
  • Operating lighting functions with F5 and/or F6
  • Excellent low-speed operation
  • Program a multiple unit (MU) lashup with lead unit only horn, bell, and lights
  • Many functions can be altered via Configuration Value (CV) changes
  • CV chart included in the box

 

PRIMED FOR GRIME MODELS FEATURE

  • Duplicated look and feel of “In Service” equipment
  • Faded base colors matched to the prototype
  • Perfect starting point for adding grime and rust

 

Baltimore and Ohio

The B&O purchased 17 SD40 units. Except for nine that were sold to the Central Railroad of New Jersey, many of them lasted thru the 1980’s wearing their original paint scheme. Our B&O offering is for two of the three SD40’s that were built in April 1969. The units were delivered as #7497 -7499 before the final renumbering of #7597 - 7599 circa 1975.

 

BO FEATURES:

  • 4,000-gallon fuel tank
  • Leslie 3-Chime horn
  • Standard battery box doors
  • Hose trays on each pilot
  • Extended-range dynamic brakes
  • Rear mounted brakewheel

 

 

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$264.99 US
Country of Origin: China