Walthers Proto 2000 UP 933 & 939B E8 A-B Set

Walthers Proto 2000 No. 920-41350 is an HO scale Union Pacific EMD E8 A-B locomotive set consisting of cab unit No. 933 and booster No. 939B. Released as part of Walthers’ Union Pacific City streamliner program, both locomotives were factory equipped with sound and DCC.

The original TrainReference photograph clearly shows Union Pacific No. 933 coupled to No. 939B in the railroad’s classic yellow, gray and red passenger colors.

At a Glance

Manufacturer: Walthers
Product line: Proto 2000
Item number: 920-41350
Prototype: EMD E8 A-B passenger diesels
Road: Union Pacific
A unit: No. 933
B unit: No. 939B
Scale: HO
Control: Factory Sound & DCC
Release period: 2010–2011

Proto 2000 Union Pacific No. 933 and 939B

Walthers offered this matched A-B locomotive set while developing its HO scale Union Pacific City streamliner series. The locomotives were designed to complement Walthers passenger cars representing Union Pacific’s famous City trains.

Item No. 920-41350 paired powered A unit No. 933 with B unit No. 939B. This version came from the factory with sound and Digital Command Control.

Walthers also offered additional Union Pacific E8 road numbers in both Sound & DCC and standard DC configurations, making the road numbers and item number important when identifying a particular set.

Union Pacific City Streamliner Power

Union Pacific received its first EMD E8 passenger locomotives in 1950. The streamlined diesels joined the railroad’s expanding passenger locomotive fleet and became closely associated with Union Pacific’s City trains.

Walthers developed its Proto 2000 E8 models specifically to accompany its Union Pacific City-series passenger cars. The models include Union Pacific-specific details such as the distinctive rooftop snow shields visible on the TrainReference photograph.

Model Features

Walthers documented the Proto 2000 Union Pacific E8 series with features including:

Factory-installed Sound & DCC on No. 920-41350
Revised E8 body
Union Pacific-specific prototype details
See-through air intake grilles
Painted metal grab irons, handrails and lift rings
Five-pole skew-wound can motor
Helical gearing
Proto MAX metal knuckle couplers
Matching Union Pacific paint and lettering

The models were designed for multiple-unit operation, appropriate for Union Pacific passenger service where several streamlined diesel units could be operated together.

Identifying Walthers No. 920-41350

The easiest way to distinguish this set from the other Union Pacific Proto 2000 E8 releases is the locomotive pairing:

No. 933 — E8 A cab unit
No. 939B — booster unit

Walthers cataloged that combination as 920-41350 with factory Sound & DCC.

Other releases from the same series included No. 937 with 946B as another Sound & DCC A-B set, while standard DC sets used still other road-number combinations.

Original Photo

The photograph below shows the Walthers Proto 2000 Union Pacific No. 933 and 939B set originally documented for TrainReference.

References and Further Reading

Related Proto 2000 References

Current Proto 2000 Union Pacific E8 Listings

Current eBay listings related to Proto 2000 Union Pacific E8 locomotives are shown below. When looking specifically for this set, check for Walthers item No. 920-41350 and road numbers 933 and 939B.

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