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  3. MERCURY 781122

MERCURY 781122 Boat Prop 48 21P 3-BLADE

fits make: Mercury.

781122 Mercury - 48 21p Boat Prop 3-blade Aluminum

( Manufacturer Part Number: 781122 ), ( Part Type: Aluminum Prop ), ( Propeller Pitch: 21 ), ( Country Of Origin: United States )

Review MERCURY 48 21p Boat Prop 3-blade Aluminum

Mercury 781122 48 21p Boat Prop, High-Performance 3-Blade Propeller

Experience a new level of boating performance with the Mercury 781122 48 21p Boat Prop. This premium 3-blade propeller is designed to deliver exceptional power and efficiency, making it an ideal choice for both recreational and high-performance applications.

The Mercury 781122 48 21p Boat Prop is a 48-inch, 3-blade propeller, specifically engineered to fit Mercury outboard engines. With a pitch of 21, this propeller offers a balance between speed and acceleration, ensuring a smooth and responsive boating experience.

Crafted from high-quality marine-grade aluminum, the Mercury 781122 48 21p Boat Prop is built to withstand the rigors of the marine environment. The propeller's durable construction ensures long-lasting performance, even in the most challenging conditions.

The 3-blade design of the Mercury 781122 48 21p Boat Prop delivers improved thrust and torque, resulting in increased speed and acceleration. This propeller is perfect for those seeking a powerful and responsive boating experience, whether you're cruising on a sunny day or racing in a tournament.

The Mercury 781122 48 21p Boat Prop also features a hydrodynamically optimized shape for reduced drag and improved fuel efficiency. This means you'll spend less time at the pump and more time on the water.

In addition, the Mercury 781122 48 21p Boat Prop is easy to install, thanks to its standard 1.25-inch (32mm) hub. This propeller is a direct replacement for many Mercury outboard models, making it a convenient upgrade for boat owners.

Upgrade your boating experience with the Mercury 781122 48 21p Boat Prop. With its powerful performance, durable construction, and improved fuel efficiency, this propeller is the perfect choice for those who demand the best from their boat.

**Pros of Mercury 781122 48 21p boat prop:**

1. **Excellent Performance:** This 3-blade propeller is designed to deliver efficient power transfer and superior hole shots, resulting in excellent performance for your boat.

2. **Durable Construction:** Mercury propellers are known for their toughness and reliability. This propeller features a strong aluminum alloy that can withstand harsh conditions.

3. **Versatile:** The 48-inch pitch of this propeller makes it suitable for various boat sizes and power levels, offering a balance between speed and acceleration.

4. **Easy Installation:** The Mercury 781122 comes with a straight shaft, which makes it easier to install on your boat.

**Cons of Mercury 781122 48 21p boat prop:**

1. **Limited Flexibility:** Due to its rigid aluminum construction, this propeller may not provide the same level of flexibility and vibration dampening as some other materials like stainless steel or composite props.

2. **Pricing:** Compared to some other propellers in the market, the Mercury 781122 may be considered higher priced, which could be a drawback for budget-conscious buyers.

**Conclusion:**

The Mercury 781122 48 21p boat prop offers a high level of performance, durability, and versatility, making it a great choice for many boat owners. However, its pricing and limited flexibility in terms of vibration dampening could be potential drawbacks.

If you prioritize performance and durability, and are willing to invest in a high-quality propeller, the Mercury 781122 could be an excellent choice. If you're looking for a more flexible and budget-friendly option, you may want to explore other propeller brands and models.

**Recommendation:**

If you're in the market for a new propeller and the Mercury 781122 48 21p seems like a good fit for your boat, I would recommend doing some further research to compare it with other similar props, and consider factors like your budget, boat size, and power level. It's also a good idea to consult with a boat mechanic or experienced boater to ensure you're making the best decision for your specific needs.

Details:

Mercury Boat Prop. Brand: Mercury / Mercuries. Diameter: 13 3/4 inches. Please see all the photos.

Overall Good condition. Part Number: 48-78122-21. Material: Aluminum. Mercury 48 781122 - 21P Boat Prop 3-Blade Aluminum.

This propeller is designed to work with a range of Mercury outboard and Mercuries engines, as well some other brands,depending on the specific model fitment. Rotation: Standard or Right Hand RH.

part #: 781122 price

  • $59.99

specifications propboapar:

  • for makes: Mercury
  • mpn: 781122
  • part type: Aluminum Prop
  • propeller pitch: 21
  • country of origin: United States

payments propboapar:

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

shipping propboapar:

  • transit: 4-7 Days
  • service: FedEx Ground Economy, USPS Ground Advantage, UPS Ground Saver
  • type: Calculated
  • carrier: FedEx, USPS, UPS
  • cost: $19.52
  • class: Economy, Standard

seller propboapar:

  • rating: 100.0%
  • city: Farmington, Michigan
  • # reviews: 1364

returns propboapar:

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

general propboapar:

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

offer propboapar:

  • started: November 28, 2025
  • quantity: 1
  • options: Ship-to-home
  • best offers: True
  • sold: 0
  • availability: In Stock
for makes: mercury, part type: aluminum prop, propeller pitch: 21, country of origin: united states,
category: boat parts > propellers, sku: 11821109233787781,
Mercury 781122 Is Similar To:
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1 offer $59.99 USD
  • Used. Offer #1 priced at $59.99 + $19.52 shipping estimate = $79.51* total. Material: Aluminum. 48 - 21P.+$19.52 shipping

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