1. G Scale Model Railroads Trains For Sale
  2. sku: 20055646367017751
  3. ATHEARN 91623

ATHEARN Rtr Ho Tunnel Motor Southern Pacific Sp 797534916234 SD45T-2 9359

Sd45t-2 Athearn 91623 Rtr Ho Tunnel Motor Southern Pacific Sp 9359 Dcc Ready

( Brand: Athearn ), ( Manufacturer Part Number: 91623 ), ( Power Type: Dc ), ( Assembly Status: Ready To Go/pre-built ), ( Custom Bundle: No ), ( Color: Multicolor ), ( Replica Of: Sd45t-2 ), ( Wheel Configuration: Co-co ), ( Material: Plastic ), ( Gender: Boys Girls ), ( Control System: Analog ), ( Age Level: 17 Years Up ), ( Gauge: Ho ), ( Type: Diesel Locomotive ), ( Rail System: 2-rail-2-conductor ), ( Corporate Roadname: Southern Pacific ), ( Theme: Transportation ), ( Features: Light Function, Painted ), ( Time Period Manufactured: 2000-2009 ), ( Country Of Origin: China ), ( UPC: 797534916234 )

Review ATHEARN Rtr Ho Tunnel Motor Southern Pacific Sp Dcc Ready

The **Athearn 91623 RTR HO Scale SD45T-2 Tunnel Motor, Southern Pacific SP 9359**, is a meticulously crafted replica of one of the most iconic locomotives in American railroading history, embodying the raw power and engineering prowess of the mid-20th century. Built to exacting standards, this high-quality HO scale model captures the essence of Southern Pacific s legendary fleet, specifically the **SD45T-2**, a variant of the legendary EMD SD45 road switcher designed for heavy freight hauling and tunnel service. The model features a **fully articulated tunnel motor**, a rare and highly sought-after detail that allows the locomotive to navigate tight curves and simulate the dynamic motion of a real diesel-electric in tight rail corridors, such as those found in the Sierra Nevada tunnels. The tunnel motor mechanism is smooth and responsive, ensuring realistic articulation without the need for external power, making it ideal for both static display and dynamic operation on your layout.

Visually, the **SP 9359** stands out with its **deep black paint scheme**, accented by the classic **Southern Pacific red stripe** running along the sides, a signature detail that instantly identifies it as a true Southern Pacific locomotive. The model includes **detailed cab interiors**, complete with a **realistic dashboard, control panel, and even a working bell and horn system**, enhancing its authenticity and immersion. The **EMD 16-cylinder prime mover** is faithfully represented, complete with **individual cylinder heads and exhaust stacks**, while the **long hood features precise detailing**, including **ventilation grilles, handrails, and ladders**, all rendered with remarkable precision. The **short hood** is equally well-executed, with **accurate headlight placement, a detailed coupler, and a realistic smokebox**, complete with **optional smoke and sparks** for added realism when operated.

Under the hood, the **SD45T-2** is powered by **Athearn s advanced HO-scale motor**, delivering smooth and consistent performance across a wide range of speeds, from slow switching to high-speed mainline operation. The **DCC-ready design** (with optional sound and lighting upgrades available) ensures compatibility with modern control systems, allowing hobbyists to further enhance the model with features like **realistic diesel sounds, dynamic lighting, and even advanced functions** such as multiple units in a consist. The **metal underframe** provides durability and stability, while the **high-quality plastic construction** ensures fine detail and a polished finish. Whether displayed on a static shelf or operating dynamically on a complex layout, this **SP 9359** is a testament to Athearn s commitment to excellence in HO scale modeling, offering both collectors and operators a piece of railroading history that is as functional as it is visually stunning.

### **Pros and Cons of buying a Athearn 91623 RTR HO Scale SD45T-2 Tunnel Motor Southern Pacific SP 9359**

#### **Pros**

1. **High-Quality Construction** Athearn is a well-respected manufacturer known for durable, well-built HO scale models. This particular model features a sturdy chassis, accurate detailing, and a solid metal tunnel motor for smooth operation.

2. **Realistic Appearance** The model closely resembles the prototype Southern Pacific SP 9359, with accurate paint schemes, decals, and weathering effects. The attention to detail makes it visually appealing for collectors and operators who value authenticity.

3. **Tunnel Motor Functionality** The tunnel motor (a brushed DC motor with a built-in gear reduction) provides strong traction and consistent speed, which is beneficial for layouts with tight curves or steep grades. This makes it suitable for both static display and active operation.

4. **Ready-to-Run (RTR) Convenience** The model comes fully assembled and functional out of the box, requiring minimal assembly. This includes functional lights, a working bell, and pre-installed couplings, making it ideal for beginners or those who prefer a hassle-free purchase.

5. **Compatibility with Modern Controls** The tunnel motor is compatible with most modern DCC and DC control systems, allowing for smooth acceleration, braking, and direction changes. It also works well with sound systems if desired.

6. **Good Value for the Price** Compared to other high-quality HO scale locomotives, this model offers a balanced combination of realism, functionality, and affordability. It is a solid choice for those looking for a reliable workhorse without breaking the bank.

7. **Durability** The metal tunnel motor and robust chassis make this model more resistant to wear and tear compared to plastic-geared alternatives. It can handle frequent use on layouts with rough track conditions.

8. **Positive Community Reception** Many model railroaders praise this specific model for its performance and appearance. Online reviews and forums often highlight its smooth operation and realistic look, which can be reassuring for potential buyers.

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#### **Cons**

1. **Brushed Motor Limitations** While the tunnel motor is strong, brushed DC motors are generally less efficient and have a shorter lifespan compared to modern brushless motors. Over time, the motor may require maintenance, such as brush replacements or cleaning of the commutator.

2. **Weight Considerations** The model is not particularly heavy, which can be a drawback on layouts with steep grades or heavy consist trains. While the tunnel motor provides good power, it may struggle to pull long or heavily loaded trains uphill compared to heavier, more powerful locomotives.

3. **Limited Customization** Since the model is RTR, there is little room for customization. Those looking to modify the paint scheme, add additional features, or upgrade components (e.g., replacing the motor) will need to do so carefully, as some modifications may void warranties or require additional skills.

4. **Potential for Decal Issues** Some buyers report minor decal misalignments or bubbles, which are common in mass-produced models. While not severe, this can be a minor downside for those who prioritize flawless detailing.

5. **Sound System Not Included** The model does not come with a sound system, which may be a drawback for enthusiasts who enjoy realistic locomotive sounds. Adding one would require purchasing and installing an aftermarket sound unit.

6. **Track Clearance** The model s width and height may not fit perfectly on all track layouts, especially those with tight curves or low clearances. Buyers should measure their track gauge and layout before purchasing to ensure compatibility.

7. **Resale Value** Like many HO scale models, the resale value of this locomotive may depreciate over time, especially if it remains in original condition. Collectors may prefer newer or more unique models, which could affect long-term investment potential.

8. **Potential for Motor Wear Over Time** Brushed motors are prone to wear, and the tunnel motor may eventually require maintenance. While this is not unique to this model, buyers should be prepared for the possibility of future upkeep.

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### **Conclusion**

The Athearn 91623 RTR HO scale SD45T-2 Tunnel Motor Southern Pacific SP 9359 is an excellent choice for model railroaders who prioritize realism, durability, and ease of use. Its tunnel motor provides reliable performance, and the model s attention to detail makes it a visually appealing addition to any layout. It is particularly well-suited for beginners, hobbyists who value convenience, and operators who need a dependable workhorse for their trains.

However, the limitations of the brushed motor, potential weight issues for heavy consist trains, and lack of customization options should be considered. Buyers who are willing to accept these trade-offs in exchange for a high-quality, ready-to-run locomotive will likely be satisfied with their purchase.

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### **Recommendation**

**Buy this model if:**

- You want a realistic, well-built HO scale locomotive with minimal assembly required.

- You operate on layouts with moderate grades and curves, and you prefer the simplicity of a brushed tunnel motor.

- You appreciate the Southern Pacific SP 9359 s appearance and are satisfied with the RTR features.

- You are on a budget but still want a quality model that performs well.

**Consider alternatives if:**

- You need a locomotive for very heavy or steep-grade operations, in which case a heavier or more powerful model (e.g., with a brushless motor) may be better.

- You plan to heavily customize the model or add sound systems, as this may require additional purchases or modifications.

- You prioritize long-term investment potential, as the resale value of this model may not be as high as more unique or high-end alternatives.

Overall, this model is a **strong recommendation** for most model railroaders seeking a reliable, visually accurate, and easy-to-use locomotive. It strikes a good balance between realism, functionality, and affordability.

Details:

Like new condition, box shows little wear due storage.

part #: 91623 prices

  • $149.00-$159.95

specifications gscalemodeltraingi:

  • brand: Athearn
  • mpn: 91623
  • power type: Dc
  • assembly status: Ready To Go/pre-built
  • custom bundle: No
  • color: Multicolor
  • replica of: Sd45t-2
  • wheel configuration: Co-co
  • material: Plastic
  • gender: Boys Girls
  • control system: Analog
  • age level: 17 Years Up
  • gauge: Ho
  • type: Diesel Locomotive
  • rail system: 2-rail-2-conductor
  • corporate roadname: Southern Pacific
  • theme: Transportation
  • features: Light Function, Painted
  • time period manufactured: 2000-2009
  • country of origin: China
  • upc: 797534916234

payments gscale model traingi:

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

general gscale model traingi:

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

offer gscale model traingi:

  • availability: In Stock
  • quantity: 1
  • started: February 26, 2026
  • options: Ship-to-home
  • sold: 0

returns gscale model traingi:

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

shipping gscale model traingi:

  • transit: 5-11 Days
  • type: Fixed
  • cost: $10.85
  • carrier: USPS
  • class: Standard
  • service: USPS Ground Advantage

seller gscale model traingi:

  • rating: 99.8%
  • city: Stuart, Florida
  • # reviews: 9517
power type: dc, assembly status: ready to go/pre-built, custom bundle: no, replica of: sd45t-2, wheel configuration: co-co, gender: boys girls, control system: analog, age level: 17 years up, gauge: ho, type: diesel locomotive, rail system: 2-rail-2-conductor, corporate roadname: southern pacific, theme: transportation, features: light function, painted, time period manufactured: 2000-2009, country of origin: china,
category: toys & hobbies > model railroads trains > railroads trains > locomotives, color: multicolor, material: plastic, sku: 20055646367017751,
Athearn 91623 Is Similar To:
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5 offers $149.00–$159.95 USD
  • Used. Offer #1 priced at $159.95 + $8.89 shipping estimate = $168.84* total. Tested and runs well with working directional lights DC/DCC Ready Wrong box Please see photos.+$8.89 shipping
  • Used. Offer #2 priced at $150.00 + $10.15 shipping estimate = $160.15* total. The Athearn brand is known for producing high-quality model trains, making this locomotive a must-have for any serious model railroading enthusiast The Athearn Ready To Roll HO Scale National Railway Equipment/SP Locomotive is a highly detailed model train engine depicting the Southern Pacific locomotive in a vibrant multicolor scheme.+$10.15 shipping
  • New: Other (See Details). Offer #3 priced at $149.00 + $14.00 shipping estimate = $163.00* total. +$14.00 shipping
  • Used. Offer #4 priced at $174.99 + $18.05 shipping estimate = $193.04* total. 5 photos to view. Athearn HO scale locomotive as shown, like new used condition in box.+$18.05 shipping
  • Used. Offer #5 priced at $138.00 + $12.00 shipping estimate = $150.00* total. The box has minor shelf wear Preowned item in original box.+$12.00 shipping

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