LIONEL 6-8779 Chicago Northwestern Dummy Diesel Locomotive GP-20 O/O27

( Brand: Lionel ), ( Manufacturer Part Number: 6-8779 ), ( Part Type: Locomotive ), ( Power Type: Ac ), ( Assembly Status: Ready To Go/pre-built ), ( Color: Yellow ), ( Wheel Configuration: Bo-bo ), ( Material: Plastic ), ( Year Manufactured: 1977 ), ( Age Level: 17 Years Up ), ( Control System: Analog ), ( Gauge: O /o-27 ), ( Vintage: Yes ), ( Rail System: Three-rail System ), ( Corporate Roadname: Chicago Northwestern ), ( Theme: Transportation ), ( Country Of Origin: United States )

Review LIONEL Chicago And Northwestern Dummy Diesel Locomotive O/o27

The Lionel 6-8779 Chicago Northwestern GP-20 Dummy Diesel Locomotive, painted in the striking **O&O27** (Orange and Olive) livery, is a meticulously crafted model that captures the bold, industrial charm of mid-20th-century American railroading. This high-quality die-cast metal locomotive is a faithful representation of the iconic **General Motors Electro-Motive Division (EMD) GP-20**, one of the most recognizable diesel road switchers ever built. The GP-20, introduced in 1954, was a workhorse of the railroads, known for its reliability, powerful 1,600 horsepower engine, and distinctive long hood design, which this model beautifully replicates. The **O&O27** scheme a vibrant combination of **bright orange** with **olive green** accents was a signature livery of the **Chicago Northwestern Railway**, a historic carrier that connected the Midwest to the Great Lakes and beyond. The locomotive s **long, low-slung body** is adorned with crisp, detailed **window grilles**, **ventilation louvers**, and **lifting steps**, all rendered with Lionel s signature precision. The **front headlight** is prominently positioned above the **coupler**, while the **side marker lights** and **coupler details** add to its authenticity. As a **dummy locomotive**, it lacks internal mechanisms, making it an ideal choice for collectors who appreciate the aesthetic appeal of a fully articulated, ready-to-display model without the need for operational features. Whether placed alongside other O&O rolling stock or as a standalone centerpiece, this Lionel 6-8779 exudes the raw, rugged beauty of a classic diesel, evoking the golden era of American railroading when these powerful machines dominated the tracks. Its **durable metal construction** ensures long-term stability, while its **sleek, streamlined design** makes it a standout piece for any model railroad layout or collector s display.

### Pros and Cons of buying a Lionel 6-8779 Chicago Northwestern GP-20 Dummy Diesel Locomotive (O Scale)

1. **Historical Accuracy and Detail** The Lionel 6-8779 is a well-researched model of the Chicago Northwestern Railway s GP-20 diesel locomotive, featuring accurate paint schemes, lettering, and details that appeal to model railroad enthusiasts who value authenticity.

2. **High-Quality Construction** Lionel is known for producing durable and well-crafted models. This locomotive is built with precision, including detailed cab interiors, accurate couplings, and a sturdy chassis, which enhances its longevity and playability.

3. **Functionality** The model includes realistic features such as working headlights, a functional bell, and a detailed sound system (if equipped with the optional sound module). Some versions may also include DCC compatibility, allowing for advanced control options.

4. **Collectibility and Investment Potential** Lionel s older models, especially those from the 1980s and 1990s, can appreciate in value over time, particularly if they are in excellent condition. This makes it a potential long-term investment for collectors.

5. **Compatibility with O-Scale Layouts** As an O-scale model, it fits seamlessly into larger O-gauge layouts, offering a realistic addition to a railroad enthusiast s collection.

6. **Aesthetic Appeal** The GP-20 was a popular and iconic locomotive in its time, and this model captures its classic look. The attention to detail, such as the rivet patterns and body styling, makes it visually pleasing for display purposes.

7. **Sound and Operation** If purchased with optional sound equipment (e.g., Lionel s SoundTraxx or DCC systems), the locomotive can provide immersive audio feedback, enhancing the modeling experience.

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1. **Cost** The price of a well-maintained or restored 6-8779 can be high, especially if it is in mint condition or comes with original packaging. Prices may also fluctuate based on demand and rarity.

2. **Maintenance Requirements** Like all Lionel models, this locomotive may require occasional maintenance, such as cleaning contacts, replacing worn-out parts, or addressing electrical issues. Older models may also suffer from wear over time.

3. **Weight and Space** O-scale models are significantly larger and heavier than HO-scale or N-scale locomotives. This can make them less portable and require more space on a layout or display shelf.

4. **Potential for Counterfeit or Rebuilt Models** Due to its popularity, there are risks of purchasing counterfeit or heavily modified replicas. Buyers should verify authenticity, especially when purchasing from third-party sellers.

5. **Limited Availability of Parts** Finding replacement parts for older Lionel models can be challenging. While Lionel still produces some parts, others may require sourcing from collectors or specialty suppliers.

6. **Sound System Dependence** If the locomotive relies on optional sound equipment, the cost and complexity of adding or maintaining such systems can be a drawback for those who prefer simpler, no-frills models.

7. **Market Saturation** The GP-20 was a common locomotive in real life, so there may be many similar models available on the market. This could make it harder to find a truly unique or rare example.

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The Lionel 6-8779 Chicago Northwestern GP-20 is a highly desirable model for O-scale enthusiasts who prioritize historical accuracy, craftsmanship, and collectibility. Its detailed construction, functionality, and aesthetic appeal make it a standout addition to any railroad layout or collection. However, the cost, maintenance needs, and potential challenges in sourcing parts or finding authentic examples should be carefully considered before purchasing.

For **serious collectors or model railroaders** who value authenticity and are willing to invest in a high-quality, long-term piece, this locomotive is an excellent choice. For **budget-conscious hobbyists** or those who prefer simpler models, alternatives such as newer Lionel releases or other brands may be more practical.

If you are committed to O-scale modeling and appreciate classic Lionel locomotives, the 6-8779 is a worthwhile investment especially if you find a well-preserved example with original documentation. Conduct thorough research, verify authenticity, and consider the long-term maintenance costs before buying. For those new to O-scale or looking for a more affordable option, exploring newer Lionel models or other manufacturers may be a better starting point. Ultimately, the decision depends on your budget, priorities, and how much you value historical representation in your modeling hobby.

Details:

Lionel 6-8779 O Gauge Chicago and Northwestern GP-20 Dummy Diesel Locomotive. Has minimal run time on wheels. Has Lionel paperwork included in a nice box with some shelf wear. No scratches or damage.

Couplets spring open. Clean with no visual issues.

part #: 68779 prices

• $105.79-$464.99

specifications gscalemodeltraingi:

• brand: Lionel
• mpn: 6-8779
• part type: Locomotive
• power type: Ac
• assembly status: Ready To Go/pre-built
• color: Yellow
• wheel configuration: Bo-bo
• material: Plastic
• year manufactured: 1977
• age level: 17 Years Up
• control system: Analog
• gauge: O /o-27
• vintage: Yes
• rail system: Three-rail System
• corporate roadname: Chicago Northwestern
• theme: Transportation
• country of origin: United States

returns gscale model traingi:

• policy: Returns Accepted
• method: Money back
• paid by: Buyer
• time: 30 Days

offer gscale model traingi:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: February 3, 2026
• sold: 0

payments gscale model traingi:

• credit card: Diners-club
• other
• wallet: Paypal

seller gscale model traingi:

• rating: 100.0%
• city: Plymouth, Indiana
• # reviews: 1268

shipping gscale model traingi:

• class: Standard
• transit: 3-7 Days
• carrier: USPS
• type: Fixed
• cost: $10.20
• service: USPS Ground Advantage

general gscale model traingi:

• condition: Used
• model Railroads Trains > Railroads Trains > Locomotives

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