Athearn HO F7A w/DCC & Sound, PC/Freight #1684

AthearnSKU: ATHG19541


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Detailed Information


  • Late GN details including additional grabs on nose and rear roof, as well as cut skirts
  • Twin horizontal headlight
  • Operating strobes (#331A and 331C only) (flash on DCC/sound versions)
  • Leslie S3K or S3L horn
  • Different wheel bearing styles per prototype road #
  • Nail antenna
  • Nose MU
  • Cut skirts


    • Additional grab irons on sides and ends of roof
    • Back-up lights
    • Cut skirts



    • All units are powered
    • Heavy die-cast frame for greater traction and more pulling power
    • DCC-ready features Quick Plug plug-and-play technology with both 21-pin connector (DCC-Ready only)
    • Factory installed SoundTraxx Tsunami2 sound and DCC decoder (DCC+sound units only)
    • Tsunami sounds are compatible with both DCC and DC operation (DCC+sound units only)
    • Genesis driveline with balanced five pole skew wound motor and dual flywheels
    • Directional constant lighting-featuring LEDs; headlight brightness remains constant
    • Scaled from prototype resources including drawings, field measurements, photographs, and more
    • Separately applied photo etched metal and injection molded detail parts:
    • Cab interior Coupler cut levers MU and Trainline hoses Windshield wipers Lift rings Wire grab irons Sander lines
    • Detailed fuel tank with fuel fillers, fuel gauges, breather pipes, and retention tanks
    • Body mounted McHenry scale knuckle couplers - Kadee compatible
    • 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
    • Detailed Blomberg-B trucks with prototype-specific wheel bearings
    • Replacement parts available
    • Minimum radius: 18


    • Onboard DCC decoder with SoundTraxx Tsunami2 decoder pre-installed
    • Sound units operate in both DC and DCC
    • Individual sound boards installed in both A and B units (sound units only)
    • All functions NMRA compatible in DCC mode
    • Engine, horn, and bell sounds work in DC
    • Some functions are limited in DC
    • Program a multiple unit (MU) lashup with lead unit only horn, bell, and lights
    • Slow speed control
    • Many functions can be altered via Configuration Value (CV) changes
    • CV chart included in the box
    • Lighting effects such as beacons and Gyralight where prototypically accurate
    • A and B units often include sound decoders with different default pitch shift, so MU lashups sound unique


    The F-units were the most successful first generation road (main line) diesel locomotives in North America, and were largely responsible for superseding steam locomotives in road freight service. Before this, diesel units were mostly only built as switcher locomotives, and only used in rail yards.


    DCC: Equipped
    SOUND: Tsunami2
    Axles: 4
    LIGHTED: LED Lighting
    FULL ROADNAME: Great Northern
    Minimum Age Recommendation: 14 years
    Is Assembly Required: No

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