Add DCC sound to this locomotive
Fit not confirmed. We couldn't confirm which decoder socket this model has, so check with us before ordering a decoder for it.
All GE Diesel sound decoders · Which decoder fits depends on this model's plug and the space inside the shell. Not sure? Ask us before you order.
Atlas 10004497 | GE Dash 8-40CW DC - Union Pacific #9427 | HO Scale
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Runs on 22″ radius curves or wider.
Add DCC sound to this locomotive
Fit not confirmed. We couldn't confirm which decoder socket this model has, so check with us before ordering a decoder for it.
All GE Diesel sound decoders · Which decoder fits depends on this model's plug and the space inside the shell. Not sure? Ask us before you order.
Description
Atlas's HO scale Master Silver Series GE Dash 8-40CW captures Union Pacific #9427 in the railroad's iconic Armour Yellow and Harbor Mist Gray with red lettering — the wide-cab GE freight workhorse that helped UP haul intermodal and unit grain trains across the West through the 1990s and 2000s. Standard DC, with the same precision Master Series mechanism Atlas is known for, just minus the factory sound.
Looking for more HO scale Union Pacific power and rolling stock? Browse our HO Trains & Track and HO Diesel Locomotives.
- Atlas Master Silver Series mechanism with five-pole skewed armature motor and dual flywheels for smooth, steady running at all speeds
- Heavy die-cast underframe for excellent tractive effort and reliable low-speed performance
- Directional headlight, ditch lights, illuminated number boards, and marker lights
- Separately-applied detail parts: scale windshield wipers, metal grab irons, fine-scale handrails, MU and trainline hoses, coupler cut bars, sand fill hatch, snowplow, and truck piping
- Painted crew figures in the cab
- Standard DC analog operation — DCC-ready friendly mechanism (decoder not included)
- Body-mounted AccuMate knuckle couplers
- Minimum radius: 22"
- Scale: HO (1:87)
| Brand | Atlas |
| Item Number | 10004497 |
| Series | Master Silver |
| Scale | HO (1:87) |
| Type | Diesel Locomotive |
| Engine Style | GE Dash 8-40CW |
| Road Name | Union Pacific |
| Road Number | 9427 |
| Era | Modern (1990s–Present) |
| Engine Electronics | Standard DC (DCC-ready) |
| Couplers | AccuMate knuckle |
| Min Radius | 22" |
| Condition | New |
| UPC | 840245249747 |
Is this DCC-ready?
Yes — this is a standard DC analog model with a DCC-friendly mechanism. A decoder can be added (not included). It will not produce sound; this is a non-sound version.
What's the difference between the Atlas Master Silver and Gold series?
Silver Series is Atlas's standard DC offering (no factory decoder, no sound). Gold Series typically ships with ESU LokSound DCC sound preinstalled. Both share the same body, mechanism quality, and detail level.
Will this run on tight curves?
Atlas recommends a 22" minimum radius. The long six-axle Dash 8-40CW will bind on smaller curves typical of N-scale-style or starter-set HO layouts.
What era is this prototype?
The Dash 8-40CW (wide-cab GE) was built starting December 1989. Union Pacific #9427 dates to the early 1990s and saw service into the 2000s. Suitable for any modern UP layout.
Specifications
| Scale | HO Scale |
|---|---|
| Road name | Union Pacific |
| Type | Diesel Locomotive |
| Engine style | Dash 8 |
| Control | DC Only |
| Sound | No Sound |
| Era | Modern |
| Minimum radius | 22″ |
| Manufacturer | Atlas Model Railroad Co. |
| Part # | 10004497 |