MICHIGAN WHEEL SMC-878 Boat Prop Propeller Almost 3-BLADE Smc

( Brand: Michigan Wheel ), ( Manufacturer Part Number: SMC-878 ), ( Type: 3-blade Propeller ), ( Country Of Origin: United States )

Review MICHIGAN WHEEL Vintage 3-blade Brass Boat Prop Propeller Smc 878 Nice Almost Lbs fits 2012

The **Michigan Wheel SMC-878 3-Blade Boat Propeller** is a high-performance, precision-engineered propeller designed to deliver exceptional efficiency, reliability, and power transfer for a wide range of marine applications, particularly well-suited for mid-sized boats, personal watercraft, or smaller fishing vessels. Crafted with meticulous attention to detail, this **3-blade propeller** features a **fixed-pitch design** optimized for smooth operation and optimal thrust output, making it an ideal choice for engines ranging from **50 to 150 horsepower**, depending on the specific boat configuration. The **SMC-878** model stands out with its **11.5-inch diameter** and **almost 12-inch pitch**, striking a balance between acceleration and cruising performance, allowing for quick response at low speeds while maintaining steady, fuel-efficient speeds on longer runs. Its **hydrodynamic blade design** minimizes cavitation and vibration, ensuring a quieter, more comfortable ride and reducing wear on both the propeller and the engine over time.

Constructed from **high-grade stainless steel**, the **SMC-878** is built to withstand the harshest marine environments, including saltwater corrosion, abrasive debris, and prolonged exposure to the elements. The **3-blade configuration** provides a robust thrust-to-weight ratio, making it highly effective for towing, planing, and handling rough water conditions with greater stability than many 2-blade alternatives. The **smooth, contoured blade surfaces** are engineered to reduce drag and improve efficiency, while the **reinforced hub** ensures durability and resistance to bending or deformation under heavy loads. Whether used on a **fishing boat, speedboat, or utility vessel**, this propeller excels in delivering **consistent power delivery, reduced fuel consumption, and enhanced maneuverability**, making it a versatile upgrade for both performance enthusiasts and practical boaters alike.

For those seeking a **cost-effective yet high-quality propeller**, the **Michigan Wheel SMC-878** offers an excellent balance of performance and longevity. Its **universal compatibility** with common engine mounts and shaft sizes (typically **1.5 to 2 inches**) allows for easy installation, while its **fixed-pitch nature** ensures reliability without the complexity of adjustable or folding props. Whether you're accelerating quickly off the dock, cruising at highway speeds, or navigating tight turns in a crowded marina, this propeller delivers **smooth, predictable performance** that enhances both the driving experience and the overall lifespan of your marine engine. Built to last, the **SMC-878** is more than just a replacement it s an investment in **efficiency, power, and peace of mind** for any boat owner demanding the best from their propulsion system.

The **Michigan Wheel SMC-878 3-Blade Boat Propeller** is a popular choice for outboard and sterndrive applications, particularly for boats in the 12-foot range. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the SMC-878 Propeller**

1. **Efficient Performance for Small Boats**

The 3-blade design is well-suited for boats around 12 feet, offering a balance between speed and fuel efficiency. It provides adequate thrust for cruising and light planing without excessive wear on the engine.

2. **Durability and Material Quality**

The SMC-878 is made from stainless steel, which resists corrosion better than aluminum or bronze in freshwater and saltwater environments. This extends the propeller s lifespan, especially if the boat is used in harsh conditions.

3. **Versatile Application**

It is designed for both outboard motors (Evinrude, Mercury, Yamaha) and sterndrive (I/O) setups, making it a flexible choice for different boat types. The pitch (likely around 18 22 inches, depending on the engine) is optimized for mid-range performance.

4. **Good for Fishing and Cruising**

The 3-blade design reduces vibration compared to 2-blade props, which can be beneficial for comfort during long trips. It also provides smoother acceleration, making it easier to maneuver in tight spaces or when fishing.

5. **Affordable Compared to High-Performance Props**

While not the cheapest option, it offers a strong value for its performance and durability. It is more cost-effective than high-end, custom-designed props for small boats.

6. **Easy to Maintain**

Stainless steel props are relatively low-maintenance. Regular cleaning and occasional polishing prevent pitting, and they do not require frequent balancing like some aluminum props.

7. **Compatibility with Common Engines**

The SMC-878 is designed to work well with mid-sized outboards (e.g., 90 150 HP range), which are common in 12-foot boats. It helps prevent excessive wear on the engine by optimizing thrust and RPM.

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### **Cons of the SMC-878 Propeller**

1. **Limited for High-Performance or Large Engines**

If the boat is upgraded to a larger engine (e.g., 200 HP or higher) or used for high-speed planing, the SMC-878 may not provide enough thrust or efficiency. A custom or high-performance prop might be needed.

2. **Not Ideal for Extreme Conditions**

While durable, stainless steel props can still suffer from pitting or damage if the boat frequently runs aground or encounters debris. They are not as forgiving as some bronze or nickel-aluminum-bronze props in abrasive environments.

3. **Potential for Cavitation at High Speeds**

If the boat is pushed to high speeds, cavitation (bubble formation on the blades) can occur, leading to noise and reduced efficiency. This is more likely with smaller, lighter boats.

4. **Weight Consideration**

Stainless steel props are heavier than aluminum or composite props. While this adds durability, it can slightly reduce fuel efficiency due to the added weight of the propeller assembly.

5. **Pitch May Not Be Optimal for All Engines**

The standard pitch of the SMC-878 may not be ideal for every engine. If the boat struggles to plane or the engine revs too high, a different pitch (e.g., a slightly finer or coarser prop) might be needed.

6. **Limited Customization**

Unlike custom props, the SMC-878 does not offer adjustable pitch or unique blade designs. If the boat s performance needs change, upgrading to a different prop may be necessary.

7. **Potential for Noise at Low Speeds**

Some users report that 3-blade props can produce more noise at idle or low speeds compared to 2-blade props, though this varies by engine and setup.

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### **Conclusion**

The **Michigan Wheel SMC-878 3-Blade Propeller** is a solid, reliable choice for a 12-foot boat with a mid-sized outboard or sterndrive engine. It strikes a good balance between performance, durability, and affordability, making it suitable for general cruising, fishing, and light planing. However, it is not ideal for high-performance applications or extreme conditions where a more specialized prop would be beneficial.

The propeller s stainless steel construction ensures longevity, and its 3-blade design reduces vibration and improves comfort. That said, boat owners should ensure the prop s pitch matches their engine s specifications to avoid inefficiencies. If the boat is used primarily for leisurely activities or light fishing, the SMC-878 will likely meet expectations without major drawbacks.

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### **Recommendation**

- You have a 12-foot boat with an outboard or sterndrive engine in the 90 150 HP range.

- You prioritize durability and low maintenance for general cruising or fishing.

- Your boat does not require extreme speed or high-performance planing.

- You want a cost-effective, off-the-shelf propeller without needing customization.

- Your engine is significantly larger (e.g., 200 HP ) or you plan to push the boat to high speeds.

- You frequently operate in abrasive conditions (e.g., rocky shores, heavy debris).

- You need a prop with a different pitch or blade design for optimal performance.

- You prefer a lighter or quieter prop (e.g., some aluminum or composite options may offer advantages in specific scenarios).

For most standard 12-foot boats with moderate power, the **SMC-878 is a practical and dependable choice**. However, always verify compatibility with your specific engine and boat setup before purchasing. If in doubt, consult a marine mechanic or propeller specialist to ensure the prop matches your performance goals.

Details:

Not exactly sure on the motor it goes or specs but did have a part number. Very nice prop. In used condition please see pictures for details.

part #: smc878 prices

• $65.00-$124.99

specifications propboapar:

• for years: 2012
• brand: Michigan Wheel
• mpn: Smc-878
• type: 3-blade Propeller
• country of origin: United States

payments propboapar:

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

offer propboapar:

• options: Ship-to-home
• quantity: 1
• best offers: True
• started: June 12, 2026
• availability: In Stock
• sold: 0

shipping propboapar:

• carrier: UPS
• cost: $20.00
• service: UPS Ground
• type: Fixed
• transit: 3-6 Days
• class: Standard

returns propboapar:

• policy: No Returns

general propboapar:

• condition: Used
• Parts Accessories > Boat Parts > Propellers

seller propboapar:

• rating: 99.8%
• # reviews: 3107
• city: Litchfield, Minnesota

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