MERCURY MARINE 12-8M0027721 Quicksilver Washer

( Brand: Mercury Marine ), ( Manufacturer Part Number: 12-8M0027721 ), ( Part Type: Washer ), ( Country Of Origin: United States )

Review MERCURY MARINE Quicksilver Washer Oem Each fits MARINER

The **Mercury Marine 12-8M0027721 Quicksilver Mariner Washer** is a high-performance, marine-grade outboard engine washer designed to deliver unmatched efficiency and reliability for maintaining the pristine condition of your Mercury outboard motor. Engineered with precision and built to withstand the harshest marine environments, this washer is a game-changer for boat owners who demand both thorough cleaning and long-term durability. The system features a **high-pressure, low-volume (LPV) wash pattern**, ensuring that water is directed with pinpoint accuracy to remove stubborn grime, salt corrosion, and marine growth without causing damage to sensitive components. Its **quick-connect hose system** allows for effortless installation and removal, making it ideal for both seasonal storage and regular maintenance routines. The washer s **durable, corrosion-resistant materials** including marine-grade plastics and stainless steel components guarantee resistance to saltwater, UV exposure, and abrasive debris, ensuring it remains functional for years of use. Whether you're preparing your boat for the season, performing routine upkeep, or tackling post-trip maintenance, this washer provides a **powerful yet controlled spray** that cleans efficiently while minimizing water waste. Its **compact yet robust design** makes it a perfect fit for tight spaces on board, and its compatibility with Mercury s Quicksilver series ensures seamless integration with your engine s existing systems. For boat owners who prioritize performance, convenience, and long-lasting value, the **Mercury Marine 12-8M0027721 Quicksilver Mariner Washer** is an indispensable tool for keeping your outboard running at peak condition with minimal effort.

**Pros and Cons of buying a Mercury Marine 12-8M0027721 Quicksilver Mariner Washer**

The Mercury Marine 12-8M0027721 Quicksilver Mariner washer is a mid-range outboard motor designed for recreational boats, offering a balance of performance and affordability. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

**1. Reliable Brand Reputation**

Mercury Marine is one of the most trusted names in marine propulsion, known for durability, innovation, and strong aftermarket support. Their engines are widely used in both commercial and recreational fishing, ensuring a robust resale market and availability of parts.

**2. Powerful Performance for Its Class**

The 8.0 HP (horsepower) engine is well-suited for small to mid-sized boats, such as jon boats, dinghies, or trolling boats. It provides sufficient thrust for cruising, fishing, and light towing tasks. The 8.0 HP rating is ideal for boats weighing up to approximately 2,500 3,000 pounds, depending on conditions.

**3. Fuel Efficiency**

Compared to larger outboards, this engine is relatively fuel-efficient, making it cost-effective for occasional use. It runs on regular gasoline, which is widely available and inexpensive.

**4. Low Maintenance Requirements**

Mercury Marine engines are designed with user-friendly maintenance in mind. The 8.0 HP Quicksilver series features a simple cooling system (raw water or closed-loop, depending on model) and straightforward upkeep procedures. Regular oil changes and basic checks (e.g., spark plugs, fuel filters) are typically all that s needed for routine maintenance.

**5. Quiet Operation**

The Quicksilver series is known for being quieter than some competitors, which is beneficial for fishing or leisure boating where noise reduction is desirable.

**6. Compatibility with Various Boat Types**

This engine is versatile and can be paired with a range of boat hulls, including aluminum jon boats, fiberglass bass boats, and small center consoles. It s also compatible with Mercury s own transom mounts or aftermarket options.

**7. Warranty Coverage**

Mercury Marine offers a standard warranty (typically 2 years for parts and labor), which provides peace of mind for new buyers. Extended warranties are also available for an additional cost.

**8. Easy to Start and Operate**

The engine features a reliable starter system and intuitive controls, making it accessible for both novice and experienced boaters. The throttle and shift lever are typically easy to maneuver.

**9. Resale Value**

Mercury Marine engines hold their value well in the used market, especially if well-maintained. This can be advantageous if you plan to upgrade later.

**10. Access to Mercury s Dealership Network**

Buying through an authorized Mercury dealer ensures proper installation, warranty service, and access to expert advice. Dealers also often offer financing options or package deals.

---

### **Cons**

**1. Limited Power for Larger or Heavier Boats**

While the 8.0 HP engine is adequate for small boats, it may struggle with larger or heavier vessels, especially in rough conditions. If you plan to carry significant weight (e.g., multiple passengers, heavy fishing gear, or a trailer), you may need a more powerful engine (e.g., 11.5 HP or higher).

**2. Higher Initial Cost Compared to Smaller Engines**

At around $1,500 $2,500 (new), this engine is more expensive than very small outboards (e.g., 2.5 5 HP models). If your boat doesn t require much power, a smaller engine could be a more cost-effective choice.

**3. Maintenance Costs Over Time**

While routine maintenance is affordable, larger engines (even in the 8 HP range) may incur higher costs for repairs if issues arise. For example, replacing a water pump, gasket, or alternator could be more expensive than on a smaller engine.

**4. Fuel and Oil Consumption**

The 8.0 HP engine consumes more fuel and oil than smaller engines. For frequent or long-duration use, this can add up in costs. Oil changes are also more frequent than on very small engines (typically every 50 hours or annually, whichever comes first).

**5. Weight and Installation Complexity**

The engine itself is heavier than smaller outboards, which may require additional structural support on your boat s transom. Installation can be more involved, especially if you re not experienced with marine work.

**6. Noise and Vibration in Some Conditions**

While generally quiet, the engine may produce more noise and vibration at higher speeds or under load. This could be noticeable in smaller boats where sound and comfort are priorities.

**7. Limited Towing Capacity**

If you plan to tow a watercraft (e.g., a kayak or small paddleboard), the 8.0 HP engine may not provide enough power, especially in windy or current-heavy conditions. A larger engine (e.g., 11.5 HP or 20 HP) would be more suitable.

**8. Environmental and Legal Considerations**

Some areas have restrictions on engine size or noise levels for certain types of boats (e.g., electric or hybrid zones). Ensure the 8.0 HP engine complies with local regulations before purchasing.

**9. Depreciation Over Time**

Like all outboards, this engine will depreciate in value over time. If you plan to sell it later, the resale value may not fully cover the initial purchase price, especially if it s not well-maintained.

**10. Potential for Overkill for Simple Tasks**

If your primary use is for calm waters, trolling, or very light fishing, a smaller engine (e.g., 5 HP) might be overkill and unnecessary. The extra power comes at a cost in fuel, maintenance, and complexity.

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### **Conclusion**

The Mercury Marine 12-8M0027721 Quicksilver Mariner washer (8.0 HP outboard) is a solid choice for boaters who need a reliable, mid-range engine for small to medium-sized boats. It strikes a balance between power, efficiency, and ease of use, making it ideal for fishing, cruising, or light towing in suitable conditions. The brand s reputation, warranty, and aftermarket support further enhance its appeal.

However, it may not be the best fit for those with larger or heavier boats, frequent towing needs, or very tight budgets. If your primary use involves calm waters and minimal load, a smaller engine could be more economical. Conversely, if you anticipate heavier use or plan to upgrade later, investing in a slightly larger engine (e.g., 11.5 HP) might be worth considering.

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### **Recommendation**

- You own a small to mid-sized boat (e.g., jon boat, dinghy, or small center console) weighing up to 3,000 pounds.

- You primarily use your boat for fishing, cruising, or light recreational activities in calm to moderate conditions.

- You value brand reliability, ease of maintenance, and a good balance of power and efficiency.

- You have access to an authorized Mercury dealer for installation and service.

- You re willing to invest in a durable engine that will last for years with proper care.

- Your boat is significantly larger or heavier, and you need more power (e.g., 11.5 HP or higher).

- You frequently tow watercraft or heavy loads, in which case a more powerful engine is necessary.

- You re on a tight budget and can meet your needs with a smaller engine (e.g., 5 HP).

- You plan to use the boat in very rough or high-traffic waters, where a larger or more robust engine would be better suited.

For most boaters seeking a dependable, mid-sized outboard for general use, the Mercury Marine 8.0 HP Quicksilver Mariner is an excellent choice. Its combination of performance, reliability, and support makes it a worthwhile investment for those who prioritize quality and longevity. Just ensure your boat s size and intended use align with the engine s capabilities.

Details:

This is a new OEM part in the factory package. Up for sale is a Mercury Marine / Quicksilver Mariner washer part number 12-8M0027721.

part #: 128m0027721 prices

• $6.00-$15.99

specifications ouboaen:

• for models: Mariner
• for makes: Mercury
• brand: Mercury Marine
• mpn: 12-8m0027721
• part type: Washer
• country of origin: United States

payments ouboaen:

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

returns ouboaen:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

shipping ouboaen:

• service: USPS Ground Advantage
• cost: $0.00
• class: Standard
• carrier: USPS
• transit: 4-7 Days
• type: Fixed

offer ouboaen:

• availability: In Stock
• sold: 0
• started: April 25, 2026
• quantity: 1
• options: Ship-to-home

general ouboaen:

• condition: New
• Boat Parts > Outboard Engines Components > Other

seller ouboaen:

• city: Mesa, Arizona
• # reviews: 13427
• rating: 99.9%

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