
( Brand: Mth ), ( Power Type: Ac ), ( Assembly Status: Ready To Go/pre-built ), ( Color: Green ), ( Wheel Configuration: 4-0 4-0 ), ( Material: Diecast, Plastic ), ( Year Manufactured: 2020 ), ( Control System: Analog And Or Digital ), ( Age Level: 14 Years And Up ), ( Type: Diesel Locomotive ), ( Unit Type: Unit ), ( Rail System: Three-rail System ), ( Corporate Roadname: Pennsylvania Railroad ), ( Theme: Transportation ), ( Features: Light Function, Smoke Unit, Sound Function ), ( Country Of Origin: China ), ( UPC: 658081435039 )
The **Pennsylvania 9815/9804 F-7A Diesel Powered PS3** (model numbers **MTH 658081435039**, **20-21359-1**, and **20-21359-3**) is a meticulously crafted, high-detail scale model designed to bring the iconic Pennsylvania Railroad (PRR) era to life on your layout with unmatched realism. Engineered by MTH Electronics, this model captures the robust elegance of the **F7A diesel locomotive**, a workhorse of the mid-20th century that played a pivotal role in the PRR s transition from steam to diesel power. Built to **HO scale (1:87)**, this locomotive stands as a testament to MTH s commitment to authenticity, featuring an impressively detailed **three-piece body construction** that ensures structural integrity and a polished, museum-quality finish. The **F-7A** was a powerful and versatile unit, originally built by **EMD (Electro-Motive Division)** in the late 1940s and early 1950s, and this model faithfully replicates its **sleek, angular design**, complete with **accurate panel lines, rivet details, and weathering** that evoke the patina of a locomotive that has seen decades of service.
Under the hood, this model is equipped with **MTH s advanced DCC sound system**, delivering an immersive auditory experience with **realistic diesel engine noises**, including **piston slap, exhaust pulses, and dynamic braking sounds**, all synchronized to the locomotive s movements. The **sound system is fully programmable**, allowing you to adjust parameters like **engine pitch, exhaust timing, and bell chimes** to match your specific operating preferences. For those who appreciate the finer details, the **F-7A** includes **separately articulated cabs**, ensuring smooth articulation and a more lifelike appearance as the locomotive bends through curves. The **underframe is fully detailed**, with **accurate brake rigging, ladders, and handrails**, while the **couplings are N-scale compatible**, allowing for seamless integration with other MTH models or third-party rolling stock.
The **livery options** for this model are equally impressive, with the **PRR black-and-yellow scheme** being the standout choice a bold, eye-catching combination that reflects the PRR s bold identity during the diesel era. The **black base paint** is complemented by **bright yellow lettering and numbering**, along with **subtle weathering effects** that simulate years of exposure to the elements, giving the model a lived-in, authentic appearance. For collectors and operators who prefer a more subdued look, MTH also offers alternative paint schemes, though the **PRR livery remains the most iconic and sought-after**. The **headlight and running lights** are **LED-based**, providing bright, consistent illumination that enhances the model s realism both day and night, while the **smoke emitter** (sold separately) can be added to further enhance the locomotive s dynamic presence when in motion.
Performance-wise, the **F-7A** is powered by **MTH s high-torque DCC motor**, ensuring **smooth acceleration, precise speed control, and reliable operation** across a wide range of scales. The **wheels are made of durable metal**, with **flanged axles** that provide stability and realistic wheel wear over time. The **bogie suspension** is finely tuned to replicate the **natural flex and articulation** of a full-sized diesel locomotive, making this model a joy to operate on both straight tracks and tight curves. Whether hauling freight cars through a mountainous region or pulling a passenger consist along the coast, the **F-7A** moves with the confidence and power of its real-world counterpart.
For enthusiasts who appreciate the **historical context**, the **Pennsylvania Railroad s F7A locomotives** were instrumental in modernizing the railroad s operations in the post-war era. These units were known for their **reliability, speed, and efficiency**, and this model captures that legacy with **meticulous attention to historical accuracy**. The **numbering scheme** (such as **9815 or 9804**) aligns with the **PRR s diesel fleet**, and the model s **road name markings** are crisply applied, ensuring that it fits seamlessly into any PRR-themed layout. Whether you re building a **freight-focused yard scene** or a **passenger terminal display**, this **F-7A** will be a centerpiece that draws admiration from fellow modelers and visitors alike.
In summary, the **MTH Pennsylvania 9815/9804 F-7A Diesel Powered PS3** is more than just a scale model it s a **high-performance, historically accurate masterpiece** that brings the spirit of the Pennsylvania Railroad s diesel era to life. With its **superior sound system, detailed construction, realistic articulation, and authentic livery**, this locomotive is a must-have for any serious model railroad enthusiast looking to elevate their layout with a piece of railroading history that moves, sounds, and looks as real as the original. Whether you re a seasoned operator or a newcomer to the hobby, this **F-7A** delivers the **power, presence, and precision** that defines MTH s reputation for excellence in model railroading.
### **Analysis of the 2021-2022 PennDOT PS3 Pennsylvania Diesel Truck (Model Numbers: 658081435039, 20-21359-1, 20-21359-3, F-7A, 9815/9804)**
This is a **Pennsylvania State Trooper (PST) diesel truck**, likely a **Ford F-750/F-800 Super Duty** or similar heavy-duty model, originally purchased for law enforcement use. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.
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### **Pros**
1. **Reliability & Durability**
- Built for heavy-duty use, these trucks are designed to handle rigorous law enforcement operations, including high-speed pursuits, towing, and extended duty cycles.
- The **diesel engine (likely a 6.7L Power Stroke or 7.3L Power Stroke)** is known for longevity if properly maintained, often exceeding 300,000 miles with regular service.
- Heavy-duty transmissions (likely an **Allison or Ford 10-speed automatic**) are robust and built for demanding conditions.
2. **Low Mileage (If Available)**
- If this truck has **low miles (under 50,000)**, it could be in excellent condition, especially if it was used for training or administrative purposes rather than active patrol.
- PennDOT surplus trucks are often **lightly used**, meaning they may have been stored rather than driven extensively.
3. **Government Surplus Discount**
- Purchasing from PennDOT typically comes at a **significant discount** compared to retail, making it a cost-effective option for commercial or personal use.
- No-dealership markup means you pay close to the truck s depreciated value.
4. **Potential for Customization**
- Since it s a surplus vehicle, you can **modify it to your needs** whether for towing, off-roading, or commercial work.
- Parts may be more affordable due to the truck s age and government origin.
5. **Strong Resale Value (If Well-Maintained)**
- Diesel trucks, especially Ford Super Duties, hold their value well, especially in commercial or fleet markets.
6. **Potential for Tax Benefits**
- If used for business purposes, some tax deductions (depreciation, fuel credits) may apply.
7. **Available Documentation & History**
- PennDOT provides **service records**, which can help verify maintenance history (though some records may be incomplete).
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### **Cons**
1. **Age & Wear**
- **2021-2022 model year** means it s **not brand new**, and some components (e.g., suspension, drivetrain) may show signs of wear if not well-maintained.
- **Diesel engines** require more frequent maintenance (fuel filters, injectors, turbochargers) than gasoline engines.
2. **Potential for Neglect**
- Some surplus trucks are **stored improperly**, leading to:- **Flat or damaged tires**
- **Corroded fuel systems** (if left idle)
- **Dry or seized components** (if not driven regularly)
- **Electrical issues** (battery drain, faulty sensors)
- **Always inspect thoroughly** before purchasing.
3. **High Upfront Cost (Despite Discount)**
- Even with a government discount, these trucks can still cost **$30,000 $50,000 **, depending on condition.
- **Hidden costs** may include:- **Transmission rebuild** (if overhauled)
- **Suspension replacement** (if worn)
- **Exhaust system repairs** (common in diesel trucks)
- **Electrical diagnostics** (troubleshooting sensors, wiring)
4. **Limited Warranty (If Any)**
- PennDOT surplus sales are typically **as-is**, meaning **no warranty** from the seller.
- You may need to **extend your own warranty** or budget for repairs.
5. **Part Availability & Costs**
- While Ford parts are widely available, **some aftermarket or rare components** (e.g., specific sensors, filters) can be expensive.
- **Diesel-specific parts** (fuel injectors, turbochargers) may require premium pricing.
6. **Potential for Modifications (Pros & Cons)**
- If the truck was **modified for law enforcement** (e.g., reinforced frames, police lights, sirens), removing these may be costly.
- **Unintended modifications** (e.g., aftermarket exhaust, tuning) could void warranties or reduce reliability.
7. **Fuel Efficiency & Cost**
- Diesel engines are **fuel-efficient**, but **diesel fuel is often more expensive** than gasoline.
- **DPF (Diesel Particulate Filter) issues** can be costly to repair if the truck was driven in stop-and-go conditions (common in patrol work).
8. **Resale Challenges**
- While diesel trucks hold value, **reselling a used surplus truck** may be difficult unless you target **fleet buyers or commercial buyers**.
- Some buyers prefer **cleaner, non-police vehicles**, which could limit appeal.
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### **Key Considerations Before Purchase**
1. **Inspection is Critical**
- **Hire a mechanic** to perform a **pre-purchase inspection (PPI)** especially for:- **Engine compression test** (check for cylinder leaks)
- **Transmission fluid condition** (burnt smell indicates wear)
- **Suspension & frame integrity** (look for rust, cracks)
- **Electrical system** (test all sensors, lights, battery)
- **Fuel system** (check for water contamination, injector health)
- **Test drive** to ensure smooth shifting, no unusual noises, and proper braking.
2. **Service History Matters**
- Request **full maintenance records** from PennDOT.
- Look for:- **Oil changes** (synthetic oil recommended)
- **Timing belt/replacement** (if applicable)
- **Transmission fluid changes** (critical for longevity)
- **Coolant system flushes** (prevents overheating)
3. **Budget for Repairs**
- Even a well-maintained truck may need:- **$1,000 $3,000** for minor repairs (brakes, tires, fluids)
- **$5,000 $10,000 ** for major overhauls (transmission, engine)
- **Diesel particulate filter (DPF) cleaning** can cost **$1,000 $2,000** if clogged.
4. **Intended Use**
- **Personal use?** Ensure it meets your daily needs (towing, hauling, off-roading).
- **Commercial use?** Verify if it meets **DOT/FMCSA requirements** for business use.
- **Collection/restoration?** Factor in **time and cost** for bringing it back to original spec.
5. **Title & Legal Considerations**
- Confirm the **title is clean** (no liens, salvage titles).
- If modifying for **non-police use**, ensure compliance with **state laws** (e.g., removing police markings may require paperwork).
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### **Conclusion**
This **2021-2022 PennDOT PS3 diesel truck** is a **strong value proposition** if:It has **low miles** and **complete service records**.
You **inspect it thoroughly** (or have a mechanic do so).
You **budget for potential repairs** (especially transmission, suspension, and electrical).
You **plan to use it for commercial, towing, or heavy-duty work** where diesel reliability is an advantage.
However, it is **not a "plug-and-play" vehicle** it requires **due diligence** to avoid hidden issues. If you re **not mechanically inclined** or **unwilling to invest in maintenance**, a **new or lightly used commercial truck** might be a safer choice.
---
### **Final Recommendation**
**Buy if:**- You **find a well-documented, low-mileage example** (under 50,000 miles).
- You **hire a mechanic to inspect it** before purchase.
- You **accept that some repairs may be needed** but are within your budget.
- You **plan to use it for work** where diesel durability is beneficial.
**Avoid if:**- The truck has **high miles or no service history**.
- You **cannot afford unexpected repairs** (transmission, engine, electrical).
- You **prefer a newer, warranty-covered vehicle** with no unknown maintenance risks.
- You **don t have access to a mechanic** for inspections and repairs.
**Best Alternative Considerations:**- If you want **newer technology**, look at **used 2020 Ford F-750/F-800 with certified pre-owned (CPO) status**.
- If you need **lower upfront cost**, consider a **used gasoline-powered truck** (e.g., Ford F-250/F-350) if diesel isn t necessary.
- If you re **targeting commercial buyers**, ensure the truck meets **fleet specifications** (e.g
Illuminated LED Number Boards. Metal Chassis. Lighted LED Cab Interior Light. Die-Cast Truck Sides, Pilots and Fuel Tank.
Directional Controlled Constant voltage LED Headlights. Lighted LED Marker Lights. Also, there is a small blemish in the paint middle section of roof powered A unit as can be seen attached photos. Road-numbers of the Power A-Unit is 9815 and Dummy B unit 9804.
Operating Protozoic Diesel Exhaust. Metal Wheels and Axles. Porto-Scale 3-2 3-Rail/2-Rail Conversion Capable. Metal Body Side Grilles.
Metal Wheels, Axles and Gears. Authentic Paint Scheme. Onboard DCC/DCS Decoder. Prototypical Rule 17 Lighting.
O Scale Jade-Compatible Couplet Mounting Pads. Metal Handrails and Horn. The features are the following of Power Unit 20-21359-1 , Intricately Detailed Durable ABS Body. Movable Roof Fans.
Locomotive Speed Control In Scale MPH Increments. This blemish presents no impact to any features or functionality In fact for those who weather their trains it could be easily covered-up.