Wig-Wag, LLC (Wig-Wag-Trains.com) Life-Like GP-20 Product Page

September 20, 2002 -
Sullivan Indiana.
Photo courtesy of
Larry E. Gilbert.

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EMD GP-20 Locomotives

All releases are included below.
If you are looking for something specific, not shown below, please use the
Google Search Link here,
or the Google search at the bottom of all pages on our site:

If you are unable to find an item on our site after using the Google search,
e-mail us and let us know what item you could not locate.

Second Release:
Announced: 9-18-10
Orders Due: 10-26-10
ETA: February 2011

First Release:
Announced: 1-3-05
Orders Due: 4-30-05
ETA: Delivered

Item Description
Not all items can be in stock at all times.
Due to minimum order requirements and shipping charges we "bunch" up re-orders to save you money.
(We reserve the right to correct errors and change prices without prior notice.) MSRP Our
Price E-mail or
Pre-Order link

Note: Not all of the items below may be in stock or available but the information is provided for reference purposes.

Please copy & paste the entire description TEXT (no pictures please) from the item you are ordering into your e-mail.
It will save time and reduce possible confusion in determining what you
really are ordering.
With the quantity of lines we carry it's not possible to memorize all of them.

Be sure you review our terms pages before placing your order:

First: Terms Page One Then: Terms Page Two Finally: Terms Page Three

If you place an order, you have agreed to our terms.

Please remember to give your first and last name and the city and state where you live in all your e-mails.

Non-USA customers please include the country.

EMD turbocharged its existing 567 engine resulting in a 2,000 horsepower locomotive designated GP20. EMD offered to rebuild older FT units into new GP20 locomotives using remanufactured parts from aging FTs. This allowed railroads to trade in four FTs totaling 5,400 h.p. for three new locomotives providing 6,000 h.p. All the remanufactured parts carried a new factory warranty. Many railroads took advantage of this cost saving program.
The GP20 set the stage for things to come. Its innovative design ushered in the higher horse power second generation in diesel locomotive design.

Item Description MSRP Our
Pricing E-mail or
Pre-Order link

Second Release
Limited Run - Discontinued when Sold Out

By the mid 50s, increasing pressure from long-haul trucks, declining passenger revenues and mounting costs forced western railroads to find new ways to improve service. Faced with expensive overhauls of early cab and hood unit diesels, many began looking at new equipment as well as ways to improve existing motive power.

In 1955 Union Pacific equipped several GP9s with turbochargers as an experiment. Their success inspired EMD to create its own turbocharger for the 567 prime mover, leading to the introduction of the six-axle SD24 in 1958. Further experiments in 1959 created a four-axle version, dubbed the GP20.

Early in their careers, the new units were typically assigned priority freights that demanded higher speeds. With the arrival of newer power, they were gradually bumped into secondary runs, and eventually spent their last years in local and yard service. Following their retirement, a few went to work for shortline operators.

Western Pacific #2001, the very first GP20, was donated by UP to the Feather River Rail Society in 1985, where it has been restored to its as-built appearance.

Second & Third Run Features
New Schemes & Numbers DCC-Friendly Mechanism w/Clip-Fit Circuit Board All-Wheel Drive & Electrical Pickup Dual Machined Brass Flywheels Heavy Die Cast Split-Frame Chassis	Powerful Skew-Wound Motor Accumate Knuckle Couplers Constant Intensity & Directional Headlights RP-25 Wheels Operate on Code 55 & Larger Rail Roadnumbers Listed will Not be Re-run