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MTH 20-3709-1 - 4-8-8-2 AC-6 Cab Forward Steam Engine "Southern Pacific" w/ PS3 (Hi-Rail Wheels)

MTH 20-3709-1 - 4-8-8-2 AC-6 Cab Forward Steam Engine "Southern Pacific" w/ PS3 (Hi-Rail Wheels)

MTH Electric Trains

  • 1,29996
  • Save $ 199

Product Specification:

  • Road Name: Southern Pacific
  • Road Number: 4129
  • Product Line: Premier
  • Scale: O Scale
  • Release: June 2017


  • Intricately Detailed, Die-Cast Boiler and Chassis
  • Intricately Detailed, Die-Cast Tender Body
  • Authentic Paint Scheme
  • Die-Cast Locomotive Trucks
  • Handpainted Engineer and Fireman Figures
  • Metal Handrails, Whiste and Bell
  • Metal Wheels and Axles
  • Remote-Controlled Proto-Coupler
  • O Scale Kadee-Compatible Coupler Mounting Pads
  • Prototypical Rule 17 Lighting
  • Constant Voltage LED Headlight
  • Operating LED Marker Lights
  • Operating LED Numberboard Lights
  • Lighted LED Cab Interior
  • Operating Tender LED Back-up Light
  • Powerful 5-Pole Precision Flywheel-Equipped Skew-Wound Motor
  • Synchronized Puffing ProtoSmoke System
  • Locomotive Speed Control In Scale MPH Increments
  • Wireless Drawbar
  • Onboard DCC/DCS Decoder
  • Proto-Scale 3-2 3-Rail/2-Rail Conversion Capable
  • 1:48 Scale Dimensions
  • Proto-Sound 3.0 With The Digital Command System Featuring Quillable Whistle With Passenger Station Proto-Effects
  • Unit Measures: 31" x 2 5/8" x 4 3/8"
  • Operates On O-72 Curves 

Steam DCC Features

  • F0 Head/Tail light
  • F1 Bell
  • F2 Horn
  • F3 Start-up/Shut-down
  • F4 PFA
  • F5 Lights (except head/tail)
  • F6 Master Volume
  • F7 Front Coupler
  • F8 Rear Coupler
  • F9 Forward Signal
  • F10 Reverse Signal
  • F11 Grade Crossing
  • F12 Smoke On/Off
  • F13 Smoke Volume
  • F14 Idle Sequence 3
  • F15 Idle Sequence 2
  • F16 Idle Sequence 1
  • F17 Extended Start-up
  • F18 Extended Shut-down
  • F19 Labor Chuff
  • F20 Drift Chuff
  • F21 One Shot Doppler
  • F22 Coupler Slack
  • F23 Coupler Close
  • F24 Single Horn Blast
  • F25 Engine Sounds
  • F26 Brake Sounds
  • F27 Cab Chatter
  • F28 Feature Reset


Part of the first transcontinental railroad, the Southern Pacific's passage over the Sierra Nevadas, from Sparks, Nevada to Roseville, California, has always been a challenge for man and machine. Grades in both directions approximate 2.5%. Thirty-nine tunnels and nearly 40 miles of snow sheds protect the track from snowdrifts and avalanches - Sierra Nevada, after all, is Spanish for "snow covered." Seeking more muscle for this route, the SP took delivery of two Baldwin articulated 2-8-8-2s in 1908. Initial trails, however, revealed that heat and exhaust gases in the tunnels and snowsheds made life nearly unbearable for the engine crew. Although cab forwards had been tried before in Italy and northern California, legend has it the SP cab forwards were inspired by an engineer who turned a Baldwin articulated around and ran it tender-first, putting the smoke behind him so he could breathe while he did his job.


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