JOHNSON MD-39 Antique Outboard Motor 317000 1.1

( Manufacturer Part Number: MD-39 ), ( Part Type: Hp Motor ), ( Stroke: 2-stroke )

Review JOHNSON 317000 1.1 Hp Antique Vintage Outboard Motor fits 1939

The **Johnson MD-39 317000 1939 1.1 HP Antique Outboard Motor** is a meticulously preserved piece of maritime history, embodying the ingenuity and craftsmanship of early 20th-century marine engineering. Originally manufactured by the Johnson Outboard Motor Company in the late 1930s, this rare and iconic model represents one of the earliest mass-produced outboard motors, predating modern designs by decades. With its classic, streamlined silhouette and unmistakable Johnson branding distinguished by the distinctive "J" emblem and polished chrome accents this motor exudes a timeless charm that appeals to both vintage enthusiasts and collectors. The 1.1 horsepower engine, though modest by today s standards, was revolutionary in its time, offering boaters unprecedented freedom and mobility on lakes, rivers, and coastal waters. Crafted from durable materials including cast iron, brass, and high-quality steel, the motor features a robust yet elegant design, with a hand-finished cylinder block, precision-machined crankshaft, and a distinctive two-stroke combustion system that was cutting-edge for its era. The original paintwork, likely in a rich, weathered finish of deep green or navy blue, complements the motor s vintage aesthetic, while the intact wooden propeller and brass fittings add to its authenticity. This motor is not merely a functional piece of equipment but a tangible artifact of the golden age of boating, offering a glimpse into the past when outboard motors first democratized access to the water. Whether displayed as a centerpiece in a museum-quality collection or restored for use in a classic boat, the Johnson MD-39 stands as a testament to innovation, durability, and the enduring allure of mechanical artistry.

### **Pros and Cons of Buying a Johnson MD-39 (Model 317000, 1939, 1.1 HP) Antique Outboard Motor**

#### **Pros**

1. **Historical Significance and Collectibility**

The Johnson MD-39 is one of the earliest mass-produced outboard motors, dating back to 1939. It holds significant historical value for enthusiasts of vintage boating and mechanical engineering. Collectors and hobbyists may find it appealing for restoration projects or display purposes.

2. **Rarity and Nostalgia**

With over 80 years of age, finding a fully functional or even intact example is uncommon. This rarity can make it a unique addition to a personal collection or a museum piece. The motor s association with the early days of outboard motors adds a nostalgic charm.

3. **Potential for Restoration and Learning**

Restoring a 1939 Johnson MD-39 can be an educational and rewarding experience. It offers hands-on learning about vintage mechanical systems, including carburetion, ignition, and basic marine engineering. Many modern mechanics find such projects fascinating for their historical context.

4. **Low Operating Costs (If Functional)**

If the motor is in working condition, running costs are minimal compared to modern outboards. Gasoline consumption is low, and replacement parts (where available) are inexpensive. However, finding original or compatible parts may be difficult.

5. **Aesthetic and Conversation Piece**

The MD-39 s design is simple yet iconic, with a distinctive cast-iron body and basic mechanical components. It can serve as a conversation starter and a conversation piece for those interested in boating history.

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#### **Cons**

1. **Extreme Age and Wear**

The motor is over 80 years old, meaning it is likely to be in poor condition if not already restored. Rust, worn bearings, corroded internals, and degraded rubber components (such as gaskets and hoses) are common issues. Without significant restoration work, it may not be functional.

2. **Lack of Modern Reliability**

Vintage outboards were not built to the same durability standards as modern engines. The MD-39 lacks features like modern ignition systems, fuel injection, or corrosion-resistant materials. It is prone to seizing, leaking, or failing without constant maintenance.

3. **Difficulty in Finding Parts**

Original parts for the Johnson MD-39 are nearly impossible to source. Even if parts exist, they may be held by collectors or in private collections. Modern replacements may not fit perfectly, requiring custom fabrication or adaptation. This can make repairs time-consuming and costly.

4. **Limited Power and Performance**

At just 1.1 horsepower, the MD-39 is extremely weak by modern standards. It would only be suitable for the smallest boats, such as dinghies or toy boats, and would struggle with anything larger or in rough conditions. It is not practical for serious boating.

5. **Safety and Legal Concerns**

Operating an antique outboard without modern safety features (such as proper ignition systems, fuel vapor suppression, or corrosion protection) poses risks. Many jurisdictions have strict regulations on vintage engines, and using one may violate emissions or safety standards. Insurance and registration could also be problematic.

6. **High Restoration Costs**

Restoring the MD-39 to working order would require skilled labor, specialized tools, and potentially custom-machined parts. The cost of labor alone could exceed the motor s value, especially if it is not a rare or highly sought-after model.

7. **No Practical Use Case**

Unlike newer antique outboards (e.g., Johnson E25 or EMC models), the MD-39 lacks practical utility. It is too weak for any meaningful boating experience and would not be cost-effective even for small recreational use.

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### **Conclusion**

The Johnson MD-39 (1939, 1.1 HP) is a fascinating piece of boating history with undeniable collectible value for enthusiasts. However, its extreme age, lack of practical utility, and the challenges of restoration make it a poor choice for anyone seeking a functional or reliable outboard motor. It is best suited for collectors, restorers, or those with a specific interest in vintage mechanical engineering rather than as a boating solution.

### **Recommendation**

- **Buy only if:** You are a serious collector, a restorer with the skills and resources to bring it back to working order, or you are interested in it purely for historical display.

- **Do not buy if:** You need a functional outboard for boating, expect it to run without extensive work, or are looking for a practical or cost-effective engine.

- **Alternatives to consider:** If you want a more functional antique outboard, look for later Johnson models (e.g., E25, EMC, or 1950s 1960s units) that are slightly more powerful and easier to restore. For modern practicality, invest in a well-maintained vintage outboard from the 1970s or later.

Ultimately, the MD-39 is a curiosity rather than a practical purchase, but for the right enthusiast, it can be a rewarding project.

Details:

The product is a 1939 Johnson MD-39 1.1 HP antique vintage outboard motor. Motor has spark and compression. This motor weighs 21 lbs and is ideal for a small john boat or canoe bracket. This 2-stroke engine is part of the Johnson brand and comes with a manufacturer number MD-39 317000.

part #: md39 prices

• $18.00-$24.95

specifications ouboaen:

• for makes: Johnson
• for years: 1939
• mpn: Md-39
• part type: Hp Motor
• stroke: 2-stroke

general ouboaen:

• Boat Parts > Outboard Engines Components > Complete Outboard Engines
• condition: Used

seller ouboaen:

• city: Plymouth, Massachusetts
• # reviews: 201
• rating: 100.0%

payments ouboaen:

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

returns ouboaen:

• policy: No Returns

offer ouboaen:

• availability: In Stock
• started: February 10, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0

shipping ouboaen:

• cost: $146.03
• class: Standard
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery
• carrier: USPS, FedEx
• type: Calculated
• transit: 7-10 Days

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