HO SD40 Locomotive, Undecorated
Pre-Order | Next Shipment January 2025
Athearn - Item No. ATH73647
5 out of 5 Customer Rating

HO SD40 Locomotive, Undecorated

$174.99
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These units are detailed to match the PC/CR units depicted elsewhere in this packet. This was a common “standard” version of the SD40, and makes a great starting point for a freelanced scheme or super-detailing project for your favorite railroad.

See through cab windows, dynamic brake and radiator fans

Flexicoil-C trucks with high or low brake cylinders (per prototype)

Improved 5-pole skew wound can motor with flywheels and multi-link drivetrain

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 tur- bocharged V16. 856 examples of this locomotive model were built for Amer- ican 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 Li- cense (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

Product Specs

Axles
6
Coupler Style
McHenry Scale Knuckle
DCC
Ready/21-Pin NEM
Full Road Name
NONE
Lighting
LED
Minimum Radius
18" (457 mm)
Prototype Manufacturer
EMD
Reporting Mark
NONE
Scale
HO
Sound
Ready
Sub Brand
ATHEARN