ATHEARN ATH16723 Union Pacific Sound SD40N Dcc/non 1665

( Brand: Athearn ), ( Manufacturer Part Number: ATH16723 ), ( Power Type: Dc ), ( Assembly Status: Ready To Go/pre-built ), ( Color: Yellow, Gray ), ( Replica Of: Sd40-2 ), ( Material: Plastic ), ( Control System: Analog ), ( Gauge: Ho ), ( Type: Diesel Locomotive ), ( Corporate Roadname: Union Pacific Railroad ), ( Theme: Transportation ), ( Features: Sound Function )

Review ATHEARN Custom Union Pacific Dcc/non Sound #1665

The **Athearn ATH16723 Union Pacific SD40N** is a meticulously crafted, high-quality model railroad locomotive that captures the iconic power and presence of one of America s most legendary railroads. This detailed HO-scale (1:87) die-cast metal model is designed to deliver an authentic representation of the classic **SD40N**, a workhorse diesel that dominated Union Pacific s fleet from the 1960s through the 1980s. Built with Athearn s signature attention to precision, the model features a robust, durable construction that includes a fully articulated frame, ensuring smooth operation and realistic movement across your layout. The **non-sound** version of this model is ideal for collectors who appreciate the classic aesthetic without the added complexity of sound systems, allowing for a cleaner, more focused modeling experience.

The **SD40N** itself is a legendary locomotive, embodying the raw power and reliability that defined Union Pacific s operations. This model pays homage to that legacy with **accurate paint schemes**, including the iconic **Union Pacific black and silver livery** with crisp white lettering and numbering, complete with the railroad s distinctive **UP logo** prominently displayed on the sides and hood. The detailing is exceptional, with **photorealistic panel lines, rivets, and ladders** that bring the locomotive to life, while the **detailed cabs and windows** enhance its three-dimensional appearance. The **detailed exhaust stacks** and **functional headlights** further contribute to the model s realism, making it a standout piece on any railroad display.

For those seeking versatility, this model is **DCC-compatible**, allowing it to integrate seamlessly into modern digital command control systems. Whether used in a traditional analog setup or as part of a sophisticated DCC layout, the **SD40N** delivers smooth, reliable performance with minimal maintenance. The **HO-scale proportions** ensure it fits perfectly alongside other high-quality models, while the **durable metal construction** guarantees long-term durability, even with frequent operation. Whether displayed statically as a centerpiece or operated dynamically across your layout, the **Athearn ATH16723 Union Pacific SD40N** is a must-have for enthusiasts who demand both authenticity and craftsmanship in their model railroading collection.

### Pros and Cons of buying a Athearn ATH16723 Union Pacific SD40N (DCC/Non-Sound, HO Scale)

#### **Pros**

1. **High-Quality Construction** Athearn is known for producing well-built HO-scale models with durable materials, including detailed cab interiors, accurate exterior features, and sturdy chassis. The SD40N is no exception, offering a solid foundation for long-term use.

2. **Accurate Representation** The model closely follows the appearance of the real Union Pacific SD40N, including correct livery, proportions, and key design elements. This makes it ideal for collectors and operators who prioritize realism.

3. **DCC-Compatible** The model is DCC-ready, meaning it can be controlled by a DCC system (such as NCE, Lenz, or Bachmann) for more advanced operation, including speed control, lighting, and sound (if upgraded later). This flexibility is beneficial for larger layouts or those who plan to expand their setup.

4. **Non-Sound Option** The non-sound version is often more affordable than sound-equipped models, making it a budget-friendly choice for those who don t require audio features. It also eliminates potential issues with battery life or sound malfunctions.

5. **Union Pacific Theme** For fans of Union Pacific s fleet, this model adds authenticity to a UP-themed layout. The livery is well-executed, and the model fits seamlessly into UP-focused collections.

6. **Compatibility with Accessories** The model is designed to work with standard HO-scale track and accessories, including couplers, lights, and other compatible locomotives and rolling stock.

7. **Resale Value** Athearn models, especially well-maintained ones, hold their value reasonably well, making this a solid investment for collectors.

8. **Easy to Find Parts and Upgrades** Since Athearn is a well-established manufacturer, replacement parts, upgrades (like sound systems), and modifications are widely available.

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#### **Cons**

1. **Lack of Sound** While the non-sound version is cheaper, it means you won t have the realistic engine sounds, horn, or bell that many operators enjoy. If sound is a priority, you d need to invest in an aftermarket sound system later.

2. **Potential for Wear Over Time** Like all plastic models, the SD40N may show signs of wear with frequent use, such as chipped paint, worn-out wheels, or misaligned parts. Regular maintenance is required to keep it looking its best.

3. **Limited Advanced Features** Without sound, the model lacks dynamic features like realistic lighting sequences or programmable functions. Operators who rely on these features for immersion may find it less engaging.

4. **Price Relative to Sound Models** While cheaper than sound-equipped versions, the ATH16723 is still a premium-priced model. For those on a tight budget, there may be more affordable alternatives (e.g., Bachmann or Life-Like models) that offer similar aesthetics.

5. **DCC Setup Complexity** If you re new to DCC, setting up the locomotive to work with your system may require some learning curve, including wiring, programming, and troubleshooting.

6. **Weight and Stability** Some HO-scale models, including this one, can be slightly top-heavy or unstable on curves. Operators on layouts with tight turns may need to adjust the weight distribution or use additional ballast.

7. **Limited Customization** Unlike some models that allow for extensive customization (e.g., paint schemes, decals), the ATH16723 is sold in a fixed livery. If you want a unique look, you d need to modify it yourself.

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### **Conclusion**

The Athearn ATH16723 Union Pacific SD40N (DCC/non-sound) is a well-crafted, accurate, and versatile HO-scale model that appeals to both collectors and operators. Its strengths lie in its durability, realistic detailing, and DCC compatibility, making it a solid choice for those who prioritize quality and flexibility over sound features. However, if realistic audio is a must, you ll need to budget for upgrades later. For enthusiasts who enjoy the visual and operational aspects of HO modeling without the need for sound, this model is an excellent investment.

### **Recommendation**

- You value high-quality construction and realism over sound features.

- You plan to use DCC and may add sound later.

- You re building a Union Pacific-themed layout or collection.

- You re on a budget but still want a premium model.

- Sound is a non-negotiable feature (look for sound-equipped versions or other brands like Bachmann or Life-Like).

- You re new to DCC and need a simpler, more beginner-friendly model.

- You prefer more customization options or a different price point.

Overall, the ATH16723 is a reliable and attractive choice for serious HO-scale modelers who appreciate craftsmanship and potential for future upgrades.

Details:

Front and rear ditch lights. Athearn RTR SD40N Snoot. Has a DCC non sound decoder installed. Unit has been super detailed, weathered and had a genesis motor installed.

part #: ath16723 prices

• $8.95-$11.04

specifications gscalemodeltraingi:

• brand: Athearn
• mpn: Ath16723
• power type: Dc
• assembly status: Ready To Go/pre-built
• color: Yellow, Gray
• replica of: Sd40-2
• material: Plastic
• control system: Analog
• gauge: Ho
• type: Diesel Locomotive
• corporate roadname: Union Pacific Railroad
• theme: Transportation
• features: Sound Function

returns gscale model traingi:

• policy: No Returns

shipping gscale model traingi:

• class: Standard
• transit: 5-12 Days
• type: Calculated
• carrier: USPS
• service: USPS Ground Advantage
• cost: $9.52

seller gscale model traingi:

• city: Richmond, California
• rating: 100.0%
• # reviews: 83

payments gscale model traingi:

• credit card: Visa
• wallet: Google-pay
• other

offer gscale model traingi:

• best offers: True
• started: May 2, 2026
• availability: In Stock
• quantity: 1
• sold: 0
• options: Ship-to-home

general gscale model traingi:

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

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