MERCURY 8M0166985 Verado Props 27.5P V12

( Manufacturer Part Number: 8M0166985 ), ( Part Type: Prop ), ( Propeller Pitch: 27 ), ( Propeller Rotation: Standard )

Review MERCURY Verado V12 Props

The **Mercury 8.0 HP 27.5" Verado V12 Propulsion System (Part #8M0166985)** is a high-performance, all-aluminum outboard motor designed to deliver unmatched speed, reliability, and efficiency for medium-sized boats ranging from 16 to 22 feet in length. Engineered with Mercury s signature precision and cutting-edge technology, this V12 propulsion system combines raw power with advanced fuel injection and electronic fuel management to ensure optimal performance across a variety of water conditions. The **27.5-inch diameter propeller** is meticulously crafted from high-grade aluminum, featuring a **four-blade design** optimized for both speed and fuel economy, making it ideal for applications such as fishing boats, cruisers, and performance-oriented vessels. With a **maximum horsepower rating of 8.0 HP**, this prop delivers a robust thrust-to-weight ratio, allowing for quick acceleration, smooth handling, and exceptional maneuverability whether you're cruising at full throttle or navigating tight turns at low speeds.

One of the standout features of the Verado V12 is its **direct-drive, single-cylinder architecture**, which eliminates the need for a traditional gearcase, reducing maintenance complexity while enhancing durability. The motor is equipped with **Mercury s proprietary EFI (Electronic Fuel Injection) system**, which ensures precise fuel delivery for improved throttle response, reduced emissions, and better fuel efficiency compared to carbureted alternatives. The **digital ignition system** further enhances performance by optimizing spark timing for consistent power output, even under varying loads. For added convenience and safety, the Verado V12 includes a **remote start feature**, allowing the operator to initiate the engine from a distance, and a **low-oil pressure warning system** that alerts the user to potential issues before they escalate.

Built to withstand the rigors of saltwater and freshwater environments, the **8M0166985** is constructed with **corrosion-resistant materials**, including anodized aluminum components and a **sealed lower unit** that protects against water ingress. The motor s **compact yet robust design** integrates seamlessly with Mercury s **Verado platform**, offering a sleek, modern aesthetic while maintaining ease of access for routine maintenance tasks such as oil changes, spark plug replacements, and propeller adjustments. Whether paired with a **trawler stern, swim platform, or center console**, this propulsion system excels in both performance and practicality, making it a versatile choice for anglers, weekend cruisers, and enthusiasts seeking a balance of power and efficiency.

For those who demand the best in marine propulsion, the **Mercury Verado V12** sets a new standard with its **smooth, vibration-dampening design**, which minimizes fatigue during extended use. The motor s **adjustable tilt mechanism** allows for easy installation on a variety of boat types, from flat-bottomed fishing boats to sleeker performance vessels, while the **integrated cooling system** ensures optimal thermal management under heavy loads. With **Mercury s reputation for reliability and innovation**, this propulsion system is not just a powerplant it s a testament to engineering excellence, designed to propel your boat with confidence, precision, and enduring performance for years to come.

### **Pros and Cons of Buying Mercury 8M0166985 27.5" Propeller (Verado V12)**

1. **High Performance** The 27.5" Verado V12 propeller is designed for high-speed applications, making it ideal for large, powerful outboards like the Mercury Verado V12. It maximizes thrust and efficiency, allowing for better acceleration and top-end speed.

2. **Durability** Mercury propellers are built with high-quality materials, including stainless steel blades, which resist corrosion and wear over time. This ensures longevity, especially in saltwater environments where rust and salt damage are common concerns.

3. **Optimized for V12 Engines** The V12 version is specifically tuned for the torque and power output of a V12 engine, providing better performance compared to generic propellers. This reduces strain on the engine and transmission while improving fuel efficiency.

4. **Reduced Cavitation & Noise** The design minimizes cavitation (bubble formation that can damage the propeller and hull) and reduces noise, leading to a smoother ride and less vibration.

5. **Compatibility with High-Speed Applications** If you use your boat for cruising, racing, or high-speed cruising, this propeller is well-suited for maintaining speed and control without excessive wear.

6. **Easier Maintenance** Compared to older or lower-quality propellers, the Verado V12 model is easier to clean and inspect, reducing downtime for maintenance.

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1. **High Cost** Mercury propellers, especially high-performance models like the Verado V12, are expensive. The price may be a significant investment, especially if you need to replace multiple propellers over time.

2. **Potential for Damage from Debris** Large propellers like this are more susceptible to damage from floating debris (e.g., branches, fishing line, or marine growth). A single impact can cause significant blade damage, leading to costly repairs or replacement.

3. **Weight** The 27.5" propeller is heavier than smaller models, which can make it more difficult to handle when removing or installing it, especially for single-handed operations.

4. **Not Ideal for Low-Speed or Trolling** While excellent for high-speed applications, this propeller may not be as efficient for slow-speed cruising or trolling. You might need a separate propeller for those conditions, increasing costs.

5. **Limited Availability of Replacement Parts** If the propeller sustains damage, finding exact replacement parts (e.g., blades, shafts) may be difficult or expensive, depending on the region.

6. **Fuel Consumption at High Speeds** While efficient at optimal speeds, pushing the boat too hard with this propeller can increase fuel consumption, especially if the engine is not properly tuned for the load.

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The **Mercury 8M0166985 27.5" Verado V12 propeller** is a **high-performance, durable, and efficient choice** for owners of large, powerful Mercury Verado V12 outboards who prioritize speed, thrust, and long-term reliability. It excels in high-speed applications and reduces wear on the engine, making it a worthwhile investment for those who frequently operate at or near maximum capacity.

However, the **high upfront cost, susceptibility to damage, and potential inefficiency at low speeds** are significant drawbacks. If you primarily use your boat for **high-speed cruising, racing, or towing**, this propeller is well-suited. If you also engage in **slow-speed fishing, trolling, or casual cruising**, you may need to consider a secondary propeller or a more versatile model.

For **serious boaters who demand performance and are willing to invest in maintenance**, this propeller is a strong recommendation. For **casual or budget-conscious users**, the cost and specialized nature may not justify the purchase.

- You have a Mercury Verado V12 engine.

- You frequently operate at high speeds (50 mph).

- You prioritize durability and long-term engine protection.

- You are prepared for the higher cost and potential maintenance needs.

- You mostly use your boat for slow-speed activities.

- You are on a tight budget and cannot afford the upfront cost.

- You frequently encounter debris in your boating area, as damage risks increase.

For optimal results, **pair this propeller with proper engine tuning, regular maintenance, and a marine-grade propeller guard** to extend its lifespan.

Details:

Mercury 27.5P Verado V12 Props. Damaged: Ends of propeller blades are slightly damaged.

part #: 8m0166985 prices

• $550.00-$2559.00

specifications propboapar:

• for makes: Mercury
• mpn: 8m0166985
• part type: Prop
• propeller pitch: 27
• propeller rotation: Standard

offer propboapar:

• started: March 31, 2026
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0

payments propboapar:

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

general propboapar:

• condition: For parts or not working
• Parts Accessories > Boat Parts > Propellers

shipping propboapar:

• class: Standard
• service: USPS Ground Advantage
• type: Fixed
• carrier: USPS
• transit: 4-10 Days
• cost: $7.62

seller propboapar:

• rating: 100.0%
• city: Hubert, North Carolina
• # reviews: 48

returns propboapar:

• policy: No Returns

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