HO Scale: EMD SD40-2 - DCC Ready - Union Pacific 'United Way'


SKU Road Number Price Qty
ATH71529 3300 $ 129.99 Sold Out
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Athearn HO Scale: EMD SD40-2 - DCC Ready - Union Pacific 'United Way'


  • All-new LED lighting

  • Rubber MU hoses for durability

  • Photo-etched stainless steel windshield wipers


  • Front snowplow

  • Late coupler cut levers

  • Large anticlimber

  • Illuminated ditch lights

  • 116” nose with brakewheel

  • Round nose vent on right side

  • Standard late Dash-2 style 4-window cab without roof seam and louvers

  • Riveted cab side panels

  • Mirrors/wind deflectors fore of windows

  • Leslie RS3L Air Horn

  • Firecracker antenna

  • Intermediate Dash-2 style battery box door on left-hand side

  • Welded ECAFB

  • Early extended range dynamic brake

  • Corrugated radiator grilles

  • Standard radiator fans

Union Pacific applied this one-off livery, depicting the Stars and Stripes of the US flag, in 1994 as a fundraiser for the US-based charity, United Way. The locomotive operated as part of UP’s regular roster for many years. It also was spotted at various railroad events and photo ops across the United States.


  • Fully assembled and ready-to-run

  • Separately applied wire grab irons

  • Separately applied air tanks

  • Coupler cut levers

  • Rubber MU hoses

  • Photo-etch stainless steel windshield wipers

  • Fine scale handrails molded in engineering plastic

  • DCC-ready Non-sound version features 21-pin NEM DCC plug

  • See-through dynamic brake and radiator fans

  • Exhaust stack

  • Frame mounted bell (unless noted)

  • Detailed 4000 gallon fuel tank (unless different capacity is noted)

  • HTC or Flexicoil-C trucks (per prototype)

  • McHenry scale knuckle spring couplers

  • Highly-detailed, injection molded body featuring new tooling

  • Painted and printed for realistic decoration

  • See through cab windows

  • Bi-directional LED lighting

  • All-wheel drive with precision gears for smooth and quiet operation

  • All-wheel electrical pickup

  • 5-pole motor with flywheels and multi-link drivetrain

  • Wheels with RP25 contours operate on all popular brands of track

  • Window packaging for easy viewing

  • Interior plastic blister safely holds the model for convenient storage

  • Minimum radius: 18”

  • Recommended radius: 22”


  • Onboard Econami sound decoder by Soundtraxx

  • Engine startup sound sequence

  • Dynamic brake sound or Non-Dynamic Straight to idle on F4

  • Extra prime mover and horn sounds exclusive to Athearn version

  • Multiple bell sound files user configurable via Configuration Value (CV)

  • 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

  • Current Keeper ready with on board expansion plug

  • Operating lighting functions with F5 and/or F6

  • Program a multiple unit (MU) lashup with lead unit only horn, bell, and lights

  • Many functions can be altered via CV changes


The SD40-2 was introduced in January 1972 as part of EMD’s Dash 2 series, responding to competing products from GE and ALCO. Reliability and versatility of the 3,000-horsepower SD40-2 made it the best-selling model in EMD’s history and the standard of the industry for several decades after its introduction. The SD40-2 was an improvement over the SD40, with modular electronic control systems similar to those of the experimental SD45X and DDA40X. The last SD40-2 delivered to a United States railroad was built in July 1984, with production continuing for railroads in Canada until 1988.

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