4-6-6-4 Challenger NP

NP Challenger #5140 by N Athearn 4-6-6-4 w/Tsunami Sound
Product SKU : 22984


MSRP $479.98    Your Price $409.98

Item 22984

NP Challenger - Athearn 4-6-6-4 Challenger w/Tsunami Sound & DCC

Road #5140

Product Description

An incredible modelling of the 4-6-6-4 Challenger by Athearn is born of determination to create the finest operating miniature representation of the prototype available.  Athearn succeeded, giving life in all detail, even down to the authentic sounds from the factory installed soundboard with speakers. The DCC decoder automatically senses what type of power supply is in use (conventional DC or NMRA compliant DCC) and adapts its functions. You don't have to do anything. The model includes a history book and instruction book for quick reference.


  • NP and SP&S road specific details
  • Cast pilot with fold-down coupler
    • Enclosed cab with side entry doors, fixed roof hatches and simulated diaphragm
    • Smokebox-mounted air pumps
    • Two sizes of wheels in the trailing truck
    • NP-style expansion link, which supports much of the valve gear
    • NP specific welded coal tender
    • SP&S specific welded oil tender
  • Fully-assembled and ready-to-run
  • Boiler backhead with printed manual controls
  • Individually applied piping, valves, generators, etc.
  • Correctly operating eccentric cranks
  • Illuminated LED directional headlight and back-up light in the tender
  • Five pole, skewed armature can motor with flywheels
  • Pivoting front and rear engines for negotiating 11” radius curves
  • Electrical pick-up on all driver and wheels
  • 8-pin connector plug between loco and
  • McHenry operating knuckle couplers installled
  • Minimum radius: 11”
  • Recommended radius: 15”



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The Hobby Smith Model Train Store where diligent customer service is our commitment.  We are a full service model railroad store with a large inventory of new and used model trains and accessories for sale. We also have a large in-store operating layout.  Our offerings include special orders, repairs, DCC installations, consignments, and advice.  We offer discounts on Z, N, HO, and O scales as well as Marklin, Walthers, Athearn, Bowser, Roundhouse and other locomotive and rolling stock manufacturers.  Our store has a good selection of books, videos, paints and scenery materials.  We welcome our customers to join in during operation sessions on our in-store layout.