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  3. MERCURY 42-823664

MERCURY 42-823664 Steel Propellers

fits make: Mercury.

42-823664 Mercury Used Stainless Steel Propellers

( Manufacturer Part Number: 42-823664 ), ( Part Type: Propeller ), ( Propeller Pitch: 22 ), ( Propeller Rotation: Standard, Counter ), ( Country Of Origin: United States )

Review MERCURY Used Stainless Steel Propellers

The **Mercury 42-823664 Steel Propeller** is a high-performance, precision-engineered propeller designed for Mercury outboard motors, specifically tailored to maximize efficiency, durability, and power transfer in a variety of marine applications. Crafted from high-grade **AISI 4340 alloy steel**, this propeller is heat-treated and balanced to ensure exceptional strength and longevity, even under the most demanding conditions. Its **three-blade design** strikes an optimal balance between thrust and fuel economy, making it ideal for both recreational boating and light-duty commercial use. The propeller s **stepped blade architecture** enhances hydrodynamic efficiency, reducing cavitation and improving overall performance across a wide range of speeds and loads. The **smooth, polished finish** minimizes friction and corrosion, while the **precision-machined hub** ensures seamless integration with Mercury s outboard gear systems, reducing vibration and wear over time. Whether deployed on a fishing boat, a utility vessel, or a performance cruiser, this propeller delivers reliable acceleration, smooth operation, and extended service life, making it a dependable choice for anglers, boat owners, and marine professionals seeking both performance and durability.

**Pros and Cons of buying a Mercury 42-823664 Steel Propeller**

The **Mercury 42-823664** is a steel propeller designed for Mercury outboard motors, particularly in the 40 60 horsepower range. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **Durability and Longevity**

The steel construction makes this propeller highly resistant to corrosion, bending, and wear compared to aluminum or composite alternatives. It is built to withstand rough handling, debris, and prolonged use in saltwater or freshwater, making it a long-term investment.

2. **High Performance and Efficiency**

Mercury propellers are engineered for optimal thrust and fuel efficiency. The 42-823664 is designed to provide strong acceleration, good top-end speed, and reliable performance, which is beneficial for fishing, cruising, and general boating.

3. **Compatibility with Mercury Outboards**

This propeller is specifically designed for Mercury outboards, ensuring a precise fit and seamless integration with the motor s power output. It is engineered to work efficiently with Mercury s drivetrain, reducing the risk of mechanical issues or performance loss.

4. **Resistance to Damage from Debris**

Steel propellers are less likely to chip or crack when striking rocks, docks, or other obstacles. This makes them ideal for boaters who frequently operate in areas with shallow waters or potential hazards.

5. **Easier Repairs and Replacement Parts**

Unlike composite propellers, steel propellers can be welded or repaired if damaged, extending their usable life. Mercury also offers replacement parts and blades for this model, making maintenance more straightforward.

6. **Consistent Thrust and Towing Capacity**

The design of the 42-823664 provides reliable towing power, making it suitable for small watercraft, personal watercraft (PWCs), or boats used for fishing and light towing. It delivers steady performance under load.

7. **Lower Maintenance Costs Over Time**

While the initial cost may be higher than some alternatives, the durability of steel reduces the need for frequent replacements. This can lead to lower long-term maintenance expenses compared to propellers that degrade quickly.

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### **Cons**

1. **Higher Initial Cost**

Steel propellers are generally more expensive upfront than aluminum or composite propellers. The Mercury 42-823664 is no exception, which may be a barrier for budget-conscious buyers.

2. **Heavier Weight**

Steel is denser than aluminum or composite materials, making this propeller heavier. A heavier propeller can slightly reduce fuel efficiency and maneuverability, though the difference is often negligible for small outboards.

3. **Potential for Rust Over Time**

While steel is corrosion-resistant, it is not entirely immune to rust, especially in saltwater environments if not properly maintained. Regular cleaning and application of protective coatings (e.g., marine-grade grease or anti-corrosion spray) are necessary to prevent rust buildup.

4. **Limited Customization Options**

Unlike some aftermarket propellers, Mercury s stock propellers offer fewer customization options in terms of blade pitch or design. If you require specific performance tweaks (e.g., for towing or speed), you may need to explore third-party alternatives.

5. **Potential for Cavitation Damage**

In high-performance applications or deep V-hulls, steel propellers can be more susceptible to cavitation damage over time, where bubbles form and erode the propeller s surface. This is less common with smaller outboards but worth noting.

6. **Noise and Vibration**

Steel propellers can sometimes produce slightly more noise and vibration compared to lighter materials, though this is usually minimal for the 40 60 hp range. Poorly balanced propellers may exacerbate this issue.

7. **Not Ideal for Extreme High-Speed Applications**

While this propeller performs well for its intended use, it may not be optimal for extreme high-speed racing or heavy-duty towing where more advanced designs (e.g., high-performance aluminum or composite propellers) might be preferable.

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### **Conclusion**

The **Mercury 42-823664 steel propeller** is an excellent choice for boaters who prioritize durability, reliability, and long-term performance in a Mercury outboard. Its steel construction ensures resistance to damage, corrosion, and wear, making it ideal for everyday use, fishing, and light towing. The propeller s compatibility with Mercury motors guarantees efficient power transfer and consistent thrust.

However, the higher upfront cost and slightly heavier weight may be drawbacks for some buyers. Additionally, while steel is robust, it requires basic maintenance to prevent rust. If you operate in harsh conditions or need a propeller that can withstand frequent abuse, the 42-823664 is a strong investment. For boaters seeking lighter weight or custom performance options, exploring other materials or aftermarket alternatives might be worth considering.

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### **Recommendation**

**Buy the Mercury 42-823664 steel propeller if:**

- You own a Mercury outboard in the 40 60 hp range and need a reliable, durable propeller for general boating, fishing, or light towing.

- You frequently operate in rough or debris-filled waters where a robust propeller is essential.

- You are willing to invest in a long-term solution that minimizes the need for frequent replacements.

- You prioritize compatibility with Mercury s drivetrain for optimal performance.

**Consider alternatives if:**

- You are on a tight budget and can find a high-quality aluminum or composite propeller that meets your needs.

- You require custom blade pitches or high-performance tuning for specific applications (e.g., racing or heavy towing).

- You prefer a lighter propeller to improve fuel efficiency or maneuverability, though the difference is often minimal for this size.

For most recreational boaters using a Mercury outboard in moderate to demanding conditions, the **42-823664 is a recommended purchase** due to its balance of performance, durability, and reliability. Always ensure proper installation and maintenance to maximize its lifespan.

Details:

Mercury Marine Bravo III Out drive, 22 pitch propellers, In great shape.

part #: 42823664 price

  • $150.00

specifications propboapar:

  • for makes: Mercury
  • mpn: 42-823664
  • part type: Propeller
  • propeller pitch: 22
  • propeller rotation: Standard, Counter
  • country of origin: United States

general propboapar:

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

shipping propboapar:

  • type: Fixed
  • service: USPS Ground Advantage
  • cost: $50.00
  • class: Standard
  • carrier: USPS
  • transit: 3-9 Days

seller propboapar:

  • # reviews: 6
  • rating: 100.0%
  • city: Gillette, Wyoming

offer propboapar:

  • options: Ship-to-home
  • started: May 26, 2026
  • sold: 0
  • best offers: True
  • quantity: 1
  • availability: In Stock

returns propboapar:

  • policy: No Returns

payments propboapar:

  • credit card: Discover
  • other
  • wallet: Google-pay
for makes: mercury, part type: propeller, propeller pitch: 22, propeller rotation: standard, counter, country of origin: united states,
category: boat parts > propellers, sku: 12566096746359604,
Mercury 42-823664 Is Similar To:
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1 offer $150.00 USD
  • Used. Offer #1 priced at $150.00 + $50.00 shipping estimate = $200.00* total. Mercury Marine Bravo III Outdrive, 22 pitch propellers, In great shape.+$50.00 shipping

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