
( Brand: Athearn ), ( Manufacturer Part Number: 90122 ), ( Part Type: Ho ), ( Age Level: 17 Years Up ), ( UPC: 797534901223 )
The **Athearn 90122 HO Scale 1:173 F59/SD40-2 Rear Dogbone** is a meticulously crafted, high-detail model designed to capture the robust and iconic presence of the EMD SD40-2 and F59 diesel locomotive series, which dominated North American railroads during the latter half of the 20th century. This particular accessory piece is a fully articulated, rubber-banded rear dogbone an essential component for accurately representing the dynamic motion of these powerful locomotives when paired with a matching front dogbone (such as the Athearn 90121). The model is constructed from durable, high-quality materials, ensuring smooth articulation and long-lasting performance, even with frequent use in layouts featuring heavy switching or dynamic motion systems. The rear dogbone features a precise, scaled-down replica of the SD40-2 s robust frame and undercarriage, complete with detailed exhaust stacks, ladders, and handrails that reflect the industrial strength and functional design of the original. The rubber banding system allows for a realistic pivoting motion, mimicking the way the locomotive s front and rear sections articulate during movement, while the sturdy construction prevents wear and tear over time. Whether used in a static display or integrated into a fully operational model railroad setup, this accessory enhances the authenticity of any F59/SD40-2 model, providing both visual realism and mechanical functionality. Ideal for hobbyists seeking to elevate their layouts with attention to detail, the Athearn 90122 is a must-have for those who demand precision and performance in their HO scale railroading experience.
### Pros and Cons of buying a Athearn 90122 HO Scale Rear Dogbone (F59/SD40-2)
#### **Pros:**1. **High Quality and Detail** The Athearn 90122 is widely regarded for its meticulous attention to detail, including accurate body styling, realistic paint schemes, and well-proportioned features. The rear dogbone (coupler) is a premium component, often preferred by model railroaders for its durability and authentic appearance.
2. **Compatibility with Modern Couplers** The inclusion of a rear dogbone coupler (F59/SD40-2 specific) allows for smoother operation on layouts that use modern, realistic couplers. This is particularly useful for those transitioning from older, less accurate couplers like Kadee or N-scale couplers.
3. **Durability and Longevity** Athearn products are known for their robust construction, which means this model should withstand heavy use without frequent wear or breakage. The rear dogbone is less prone to damage compared to traditional front couplers.
4. **Realistic Weight and Balance** The model is designed to mimic the weight distribution of a real SD40-2, contributing to more authentic movement and coupling behavior on the layout.
5. **Positive Feedback from Enthusiasts** Many model railroaders praise Athearn s HO-scale locomotives for their performance and realism. The 90122 has been well-received in hobbyist communities for its overall quality.
6. **Easy to Find Replacements and Accessories** Athearn is a well-established brand, so finding replacement parts, paint schemes, or additional accessories is straightforward. This ensures long-term maintainability.
7. **Good Value for the Price** Compared to other high-quality HO-scale locomotives, the Athearn 90122 offers a strong balance between cost and quality, making it accessible for hobbyists of varying budgets.
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#### **Cons:**1. **Limited Customization Options** Unlike some other brands, Athearn does not offer extensive customization (e.g., different paint schemes or decals) for this specific model. If you want a unique livery, you may need to purchase additional decals or paint it yourself.
2. **Potential for Overkill for Small Layouts** If your layout is very small or primarily used for static display rather than operation, the added complexity of a rear dogbone coupler may not provide noticeable benefits. For such layouts, simpler couplers might suffice.
3. **Compatibility Issues with Older Couplers** While the rear dogbone is a modern improvement, it may not be compatible with older layouts or trains that use traditional couplers. You ll need to ensure your entire fleet uses compatible couplers to avoid operational issues.
4. **Price Sensitivity** For hobbyists on a tight budget, the cost of this model (especially when factoring in additional accessories like lights or sound systems) might be prohibitive. However, it is generally considered reasonably priced for its quality.
5. **Learning Curve for Rear Dogbone Operation** If you re new to rear dogbone couplers, there may be a slight learning curve in terms of how they couple and uncouple compared to traditional front couplers. This could require some practice to master smoothly.
6. **Limited Availability of Specific Variants** While the 90122 is a popular model, certain rare or specialized variants (e.g., specific road names or unique features) may not be as readily available as more common Athearn locomotives.
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### **Conclusion:**The Athearn 90122 HO-scale rear dogbone (F59/SD40-2) is an excellent choice for model railroaders who prioritize realism, durability, and smooth operation. Its high-quality construction, realistic details, and compatibility with modern couplers make it a strong contender for serious hobbyists. However, it may not be necessary for those with very small layouts or those who prefer simpler, less expensive options.
For most enthusiasts looking to enhance their layout with a high-quality, operationally accurate locomotive, this model is highly recommended. Its pros outweigh the cons, particularly for those who value performance and authenticity over cost savings or minimalist setups.
### **Recommendation:**If you are building or expanding an HO-scale layout and want a reliable, realistic locomotive with a rear dogbone coupler, the Athearn 90122 is an outstanding purchase. Ensure your entire fleet uses compatible couplers to maximize functionality. If budget is a concern, consider pairing it with other high-quality but slightly less expensive models to balance your collection. For beginners, it s a great investment that will serve you well for years.
Condition: Excellent C-7Trainz does not provide grading for parts. Check photo for a detailed look at this item. Model Number: 90122. Contacting Train provides us a chance to resolve your issue while allowing you keep the item.
This is an Athearn 90122 HO 1.173 F59/SD40-2 Rear Dogbone 6. Manufacturer: Athearn. We'll do our absolute best to make you happy. Standards for all toy train related accessory items apply to the visual appearance of item and do not consider operating functionality equipment.
Operational Status: Functional This part is in workable condition. Train Product Id: 11574282. Economy Shipping.