MTH 20-20244-1 Western Maryland Diesel Engine Box 658081320588 SD40-2 PS3 7472 Ln/box

( Brand: Mth ), ( Manufacturer Part Number: 20-20244-1 ), ( Part Type: Engine Box ), ( Age Level: 17 Years Up ), ( UPC: 658081320588 )

Review MTH Western Maryland Diesel Engine Ps3 #7472 Ln/box

The **Western Maryland SD40-2 Diesel Engine (Model MTH 20-20244-1, PS3, 7472 LN/Box)** is a meticulously crafted, high-performance replica of the legendary **EMD SD40-2**, one of the most iconic diesel locomotives in North American railroading history. Built by **MTH Electric Trains**, this model captures the raw power and timeless design of the original, which dominated freight railroads from the 1960s through the 1980s. The SD40-2 was a workhorse of the Western Maryland Railway (WM), a storied shortline that operated through the rugged Appalachian Mountains, and this model pays homage to that era with unparalleled attention to detail. The **PS3 (Precision Sound 3.0) sound system** delivers an immersive auditory experience, featuring **12-voice engine sounds**, **12-voice horn patterns**, and **realistic bell and whistle effects**, all synchronized with the locomotive s movements for an incredibly lifelike operation. The **7472 LN/Box** designation refers to the specific paint scheme, which replicates the **Western Maryland Railway s distinctive "LN" (Long Non-Divided) livery**, complete with the railroad s bold, black-and-yellow stripes, crisp white lettering, and the iconic **WM logo** prominently displayed on the long hood. The model s **highly detailed cab interior** includes **operable handrails, a realistic throttle lever, and a detailed dashboard**, while the **exterior features accurate body styling**, including **correctly proportioned long hood and short hood details**, **accurate window placement**, and **metallic paint finishes** that shimmer under light. The **DCC-compatible motor** ensures smooth acceleration and precise speed control, making it ideal for both static display and dynamic operation on any track layout. Whether displayed as a centerpiece or roaring through a meticulously built mountain region, this **Western Maryland SD40-2** is a must-have for model railroad enthusiasts seeking authenticity, performance, and the unmistakable spirit of America s golden age of railroading.

### **Pros and Cons of buying a MTU 20-20244-1 (Western Maryland SD40-2 Diesel Engine, PS3, 7472 LN/Box)**

#### **Overview**

The MTU 20-20244-1 is a robust diesel engine originally used in the Western Maryland SD40-2 locomotive (built in 1974). This engine is a **16-cylinder, two-stroke, turbocharged diesel** with a displacement of **2,024 cubic inches (33.2 liters)** and a power output of approximately **3,000 3,200 horsepower** when properly maintained. It is often sought after by locomotive restorers, rail enthusiasts, and industrial applications requiring high-torque diesel power.

---

### **Pros**

1. **Proven Reliability**

- The MTU 20-series engines (originally developed by Maybach and later produced by MTU) are known for their durability, especially in heavy-duty applications like locomotives.

- Many SD40-2s with these engines have operated for decades with proper maintenance, suggesting long-term reliability if the unit is in good condition.

2. **High Torque & Power Output**

- The 16-cylinder configuration provides substantial power ( 3,000 3,200 HP) and excellent low-end torque, making it suitable for heavy-duty applications beyond rail use (e.g., marine, industrial generators, or static displays).

- The two-stroke design reduces internal friction and wear compared to four-stroke engines, contributing to longevity.

3. **Historical & Collectible Value**

- As part of a Western Maryland SD40-2, this engine carries nostalgia and historical significance, appealing to collectors and rail enthusiasts.

- Well-preserved units may appreciate in value over time, especially if the locomotive is restored or displayed.

4. **Modular & Repairable**

- MTU engines are modular, meaning individual cylinders, turbochargers, and other components can be replaced or rebuilt rather than overhauling the entire engine.

- A large aftermarket exists for parts, including rebuild kits, gaskets, and performance upgrades.

5. **Potential for Reuse in Industrial or Marine Applications**

- **Marine vessels** (e.g., tugboats, workboats) due to its high torque.

- **Industrial generators** for remote sites or backup power.

- **Static displays** in museums or private collections.

- Converting it for non-rail use may require modifications (e.g., exhaust, cooling, and electrical systems), but the engine itself is a strong candidate.

6. **Lower Fuel Consumption Relative to Modern Engines**

- While not as fuel-efficient as modern diesel engines, it consumes diesel at a reasonable rate for its power output, making it cost-effective for heavy-duty use.

7. **Availability of Documentation & Blueprints**

- As a well-documented locomotive engine, schematics, service manuals, and rebuild guides are widely available, aiding in maintenance and restoration.

---

### **Cons**

1. **Age & Wear**

- The engine is **50 years old**, meaning it has likely accumulated significant mileage (or operational hours). Without meticulous maintenance records, hidden issues (e.g., cylinder wear, turbo failure, or exhaust manifold cracks) may exist.

- **Cylinder liners** (may require resurfacing or replacement).

- **Turbochargers** (often need replacement every 50,000 100,000 hours).

- **Rod bearings and crankshaft** (may require inspection for scoring or distortion).

- **Fuel injection system** (mechanical or electronic, depending on model; may need overhaul).

2. **High Maintenance Requirements**

- Two-stroke diesel engines require **frequent oil changes, cylinder scraping, and valve maintenance** compared to four-stroke engines.

- **Fuel system maintenance** (e.g., fuel pumps, injectors) is critical to prevent carbon buildup and misfires.

- **Cooling system** (jackets, water pumps, thermostats) must be thoroughly inspected for leaks or corrosion.

3. **Cost of Restoration or Rebuild**

- A full rebuild can be **expensive**, often ranging from **$50,000 to $150,000 ** depending on the condition and scope of work.

- Labor-intensive tasks (e.g., cylinder honing, turbo replacement, electrical rewiring) may require specialized mechanics.

- **Parts availability**: While common, some components (e.g., OEM turbochargers, gaskets) may need to be sourced from collectors or rebuilt suppliers.

4. **Emissions & Compliance Issues**

- Modern **EPA or EU emissions standards** may not apply to this engine, but if used in certain locations (e.g., near populated areas), smoke or noise could attract regulatory scrutiny.

- Retrofitting **DPF (Diesel Particulate Filter) or SCR (Selective Catalytic Reduction)** systems could be costly and may not be practical for a locomotive engine.

5. **Space & Weight Considerations**

- The engine is **large and heavy** ( 12 15 tons when installed in the SD40-2). Moving or reinstalling it requires heavy-duty equipment (e.g., forklifts, cranes).

- If repurposing for non-rail use, structural modifications to the mounting frame may be necessary.

6. **Electrical System Challenges**

- The original **12V or 24V locomotive electrical system** may not be compatible with modern applications. Rewiring or upgrading to a higher-voltage system (e.g., 110V or 240V) could be complex.

- **Alternator and starter motor** condition must be verified, as these components degrade over time.

7. **Limited Modern Performance**

- **Fuel efficiency** (higher diesel consumption).

- **Emissions control** (may not meet modern standards).

- **Electronic fuel injection** (older mechanical systems are less precise).

- For performance-critical applications, newer engines may offer better reliability and efficiency.

8. **Risk of Hidden Damage**

- **Cracked cylinder heads or blocks** (common in older engines).

- **Rod or crankshaft damage** (from past overheating or lack of lubrication).

- **Exhaust manifold leaks** (can cause overheating).

- may go unnoticed until the engine is running.

---

### **Key Questions to Ask Before Purchase**

1. **What is the exact condition of the engine?**

- Has it been **overhauled recently**, or is it in a **static display** state?

- Are there **maintenance records** documenting past repairs?

2. **What is included in the sale?**

- Is the engine **standalone**, or does it come with the **locomotive frame, turbochargers, fuel system, or electrical components**?

- Are **critical parts** (e.g., turbochargers, injectors, bearings) original or rebuilt?

3. **What is the intended use?**

- **Locomotive restoration?** (Requires extensive work.)

- **Industrial/marine reuse?** (May need modifications.)

- **Static display?** (Less demanding but still requires preservation.)

4. **What is the seller s willingness to assist with inspection or testing?**

- A **crank test** (turning the engine by hand to check for binding) or **compression test** should be possible.

- **Leak-down test** (to check for cylinder leaks) is ideal.

5. **Are there any known issues with this specific engine?**

- **Turbocharger failure** (often the first to go).

- **Cylinder liner wear** (may require resurfacing).

- **Fuel pump leaks** (can cause low pressure and rough idle).

---

### **Conclusion & Recommendation**

- **Rail enthusiasts** looking to restore a Western Maryland SD40-2 for static display or operation.

- **Industrial or marine applications** where high torque and historical value are priorities over fuel efficiency.

- **Collectors** willing to invest time and money into a **long-term restoration project**.

- **Budget-conscious buyers** rebuilding costs can be prohibitive.

- **Applications requiring modern emissions compliance** (e.g., on-road use).

- **Those seeking low-maintenance, high-efficiency power** newer engines offer better performance.

If you are **passionate about diesel restoration** and have the **budget, time, and mechanical expertise** to properly inspect and rebuild the engine, this MTU 20-20244-1 is a **fantastic historical piece** with immense potential. However, **proceed with caution**:

1. **Get a professional inspection** before purchasing (do not rely solely on visual inspection).

2. **Budget for a full rebuild** if the engine is not already in excellent condition.

3. **Consider the long-term maintenance

Details:

Features include intricate detail, motor, die cast trucks sides, metal chassis, illuminated number boards, and handrails horn. The instruction manual is included. Contacting Train provides us a chance to resolve your issue while allowing you keep the item. Original Box: Yes P-7Handling indention's, minute edge wear, small creases.

Overall condition is Like New. The original box is included. The original paint is in great shape, and the rest of unit displays a like-new overall finish. This item appears to have been run sparingly, and displays overall signs of very light previous use.

Train Product Id: 12723119. Condition: Like New C-8Complete, all original, no rust, may show some sign of being run and/or age. Standards for all toy train related accessory items apply to the visual appearance of item and do not consider operating functionality equipment. Economy Shipping.

We'll do our absolute best to make you happy.

part #: 20202441 prices

• $329.00-$699.99

specifications gscalemodeltraingi:

• brand: Mth
• mpn: 20-20244-1
• part type: Engine Box
• age level: 17 Years Up
• upc: 658081320588

shipping gscale model traingi:

• transit: 3-7 Days
• service: Economy, Standard
• class: Economy, Standard
• type: Fixed
• cost: $16.76

payments gscale model traingi:

• credit card: Mastercard
• wallet: Paypal
• other

offer gscale model traingi:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1
• started: May 6, 2026

seller gscale model traingi:

• city: Flowery Branch, Georgia
• # reviews: 755158
• rating: 99.8%

general gscale model traingi:

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

returns gscale model traingi:

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

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