Athearn HO RTR SD40T-2 w/DCC & Sound, SSW #8324
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Manufacturer: Athearn


  • Locotrol Masters #8324, #8325; Locotrol Receivers #8372, #8376
  • EMD 123"nose with SP light package and brake wheel
  • Nathan P3 air horn
  • Whip antenna
  • Cab mounted Gyralight
  • LED Illuminated SP front and rear light package
  • Full capacity 4000 gallon fuel tank
  • Large EMD style plow
  • Large anticlimber
  • Coupler cut levers with loops
  • Cab mounted bell

Without Sound

  • ATH86707 HO RTR SD40T-2, SSW #8324
  • ATH86708 HO RTR SD40T-2, SSW #8372
  • ATH86709 HO RTR SD40T-2, SSW #8325
  • ATH86710 HO RTR SD40T-2, SSW #8376

With Sound

  • ATH86807 HO RTR SD40T-2 w/DCC & Sound, SSW #8324
  • ATH86808 HO RTR SD40T-2 w/DCC & Sound, SSW #8372
  • ATH86809 HO RTR SD40T-2 w/DCC & Sound, SSW #8325
  • ATH86810 HO RTR SD40T-2 w/DCC & Sound, SSW #8376


  • Fully assembled and ready-to-run
  • Four road numbers
  • Rubber trainline and MU hoses with silver ends
  • "Mushroom" nose vent on right side
  • Separately applied wire grab irons
  • Standard late Dash-2 4-window/L-window cab without louvers or roof seam per prototype
  • See through cab windows
  • Fixed cab side windows
  • Welded ECAFB
  • See-through dynamic brake fans
  • See through radiator grilles with new rear truck gearbox speific for the tunnel motor
  • Fine scale handrails
  • Photoetch windshield wipers
  • Separately applied air tanks
  • Speed recorder attached to appropriate axle per prototype (except undecorated)
  • McHenry scale knuckle spring couplers
  • Highly-detailed, injection molded body
  • Painted and printed for realistic decoration
  • LED Lighting
  • New tooling HTC truck sideframes
  • All-wheel drive with precision gears for smooth and quiet operation
  • All-wheel electrical pickup
  • 5-pole motor with flywheels and multi-link drivetrain for troublefree operation
  • Compatible with ATHG63839 Genesis motor retrofit kit
  • Window packaging for easy viewing
  • Interior plastic blister safely holds the model for convenient storage
  • DCC Ready 21-pin NEM Quick Plug technology
  • Available also with factory installed Econami Sound by Soundtraxx
  • Nickel plated, blackened machined wheels
  • Wheels with RP25 contours operate on all popular brands of track
  • Replacement parts available including motor brushes
  • Minimum radius: 18"
  • Recommended radius: 22"


The SD40T-2 is a 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division having a 16-cylinder EMD 645E3 diesel engine producing 3,000 horsepower (2,240 kW). 312 SD40T-2s were built for North American railroads between April 1974 and July 1980. This locomotive and the SD45T-2 are popularly called tunnel motors, but EMD's term is SD40-2s with "cooling system modifications" because they were designed for better engine cooling in tunnels. The difference between this locomotive and its non-tunnel motor cousin, the SD40-2, are the radiator intakes and radiator fan grills located at the rear of the locomotive. The radiator air intakes in this model were along the deck to allow more fresh, cooler air to enter and less hot exhaust fumes lingering around the tunnel's ceiling.


  • Onboard Econami Sound by SoundTraxx
  • 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
  • Excellent Slow speed control
  • Effect lighting (if applicable) using F5 and/or F6
  • Program a multiple unit (MU) lashup with lead unit only horn, bell, and lights
  • Many functions can be altered via Configuration Value (CV) changes


Minimum Age Recommendation:14 years
Is Assembly Required:No

Search Terms: RTR, LED, sd-40T-2, sd40t-2loco, decoder, soundtraxx, econami, ath_1217


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Athearn HO RTR SD40T-2 w/DCC & Sound, SSW #8324 Reviews

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