Trix 25913 – US Class 3900 Steam Locomotive “Challenger” · U.P. – H0 1

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Trix 25913 – US Class 3900 Steam Locomotive “Challenger” · U.P. – H0 1:87

€949,00 EUR

Image gallery

Model images and additional photos from linked listings. Condition and included items apply only to the specific listing.

Trix 25913 · US Class 3900 Steam Locomotive “Challenger” — Manufacturer photo · Trix

Technical data

Manufacturer: Trix
Reference: 25913
Model size: H0
Scale ratio: 1:87
Track gauge: 16,5 mm
Era: VI
Railway / owner: U.P.
Release year: 2026

One-time series available from MHI dealers
RailCom
Era III
Era VI
DCC decoder
Digital decoder with up to 32 functions; accessible functions depend on the controller
Sound electronics
Single front and rear headlights, switching in one direction
Warm-white LED lighting
Locomotive frame and body made of metal
Close-coupling mechanism and NEM coupler pocket
Buffer capacitor
Adults only

Equipment and technical details

Identification

Manufacturer / reference: Trix 25913
Operating number: 3977
EAN: 4028106259135

Model and dimensions

Gauge / scale: H0 / 1:87
Railway company: U.P.
Era: VI
Model / set length: 425 mm

Equipment

Powered axles: 6
Digital equipment: decodificador digital instalado
Sound functions: Included
LED lighting: Included
Cab lighting: Included
Energy reserve / buffer capacitor: Included

Operation and model details

Union Pacific 3977 represents the preserved Cody Park locomotive with an oil tender.
Dynamic smoke is factory fitted; the model has an articulated chassis, Boxpok wheels and six powered axles.
The display base also protects the model during transport.

This Trix H0 version uses the two-rail system on 16.5 mm track.
A similar-looking Märklin version may have a different electrical arrangement.
For illuminated consists, follow the manufacturer instructions for current collection and vehicle order.

A compatible digital controller provides access to the lighting and sound functions.

Scale model for adult collectors aged 15 and over. Manufacturer photos show the model configuration; scenery and layout equipment outside the described contents are not automatically included.

Functions and controllers

1Function group 129 functions

Listed by the manufacturer for:

DCC
MFX

Not listed in this table for: SX2 / SX

Headlights
Smoke generator
Steam locomotive running sounds
Locomotive whistle
Direct control
Brake squeal off
Bell
Grade crossing
Cab lighting
Release steam
Number board lighting
Air pump
Water pump
Injector
Lighting function
Running gear lighting
Coupling sound
Rail joints
Cab radio
Switching whistle
Replenish sand
Refuelling
Replenish water
Sanding
Operating sound
Operating sound
Operating sound
Compressor
Auxiliary blower

Manufacturer source: Trix 25913

Model knowledge

Model history

This reference is part of the fall 2026 programme. Its theme and equipment belong to this particular item number. The model record separates the factory specification from the condition of future individual Second-Hand examples.

Announced as a one-time series. A specific production quantity is not confirmed in the documents reviewed.

Prototype history

This version represents the railway company or theme U.P., era VI. These details and the documented prototype period provide a useful basis for a coherent train formation.

Edition and production

Special order: currently available from the manufacturer, checked on 27 October 2026. This is not advertised as our own stock. Estimated delivery is 6–9 working days after ordering, subject to continued manufacturer availability.

Documents and sources

Source 1 ↗