Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 10.75" Diameter x 12" Pitch | Right-Hand Rotation | 3 Blades | Aluminum | High-Gloss Black Finish | QA2072X

Overview

There is a certain peace in the rhythm of a boat that runs just right — that smooth surge as you throttle up, the steady hum of a motor working in harmony with the water. That’s exactly what you get with the Quicksilver Black Diamond 3-Blade Aluminum Propeller. It’s the kind of Mercury propeller you can trust, weekend after weekend, whether you’re running the flats at sunrise or cruising home with the wind in your face. Dependable, balanced, and easy to live with — this prop is built for boaters who simply love to be out there.

Key Features

• Diameter & Pitch: 10.75" Diameter x 12" Pitch
• Rotation: Right-Hand
• Blade Count: 3 Blades
• Material: High-quality aluminum construction for strong, reliable performance
• Finish: Durable Phantom Black high-gloss coating for corrosion resistance
• Hub System: Compatible with the Quicksilver Flo Torq II hub system
• Design Details: Precision-cast blades designed for smooth acceleration and effortless maintenance

Engine & Boat Compatibility

• Designed for Mercury outboard engines in the 40–60 horsepower range
• Compatible with many Mercury, Mariner, and MerCruiser models
• Works with Honda and Tohatsu engines when paired with the Flo-Torq Reflex Thrust Washer (Part Number 8M0046466, sold separately)
• Recommended for boats up to 250 horsepower and top speeds under 50 mph
• Ideal for runabouts, small fishing boats, and compact cruisers seeking a smooth, efficient ride

Performance Benefits

The first thing you’ll notice is how naturally this prop pulls your boat onto plane. The three-blade design grips the water with confidence, giving you that clean, steady acceleration that just feels right underfoot. Whether you’re easing out of the no-wake zone or opening up on open water, the response is crisp, and the steering stays light.

At cruising speed, the Black Diamond maintains a smooth, even flow — no harsh vibration, no unnecessary noise. It’s a forgiving prop, too. The aluminum construction offers the perfect mix of strength and flexibility, meaning it can handle a few bumps or shallow scrapes without leaving you stranded. And that glossy black finish? It’s more than good looks. It protects against corrosion, making cleanup after a day in saltwater or freshwater quick and easy.

Why is this prop a strong choice vs. alternatives?

If you’ve ever compared aluminum and stainless props, you already know — stainless is tougher but not always necessary. For most everyday boaters, this Mercury propeller hits the perfect balance. You’re getting genuine Mercury engineering, dependable performance, and a finish that holds up to real-world use, all at a price that won’t sting.

It’s reliable, versatile, and easy to maintain. Whether you are upgrading from a worn prop or outfitting a newer outboard, the Black Diamond gives you exactly what you need: solid thrust, smooth cruising, and peace of mind. It’s the prop you’ll recommend to a friend who just wants to get on the water and enjoy the ride.

FAQ Section

Q1: Which Mercury engines does the Quicksilver Black Diamond Propeller fit?

This prop fits Mercury outboard engines in the 40–60 horsepower range and works with select Mariner and MerCruiser models. It can also be installed on Honda and Tohatsu engines with the proper Flo-Torq Reflex Thrust Washer.

Q2: What makes this propeller different from other Mercury options?

The Black Diamond combines durable aluminum construction with Mercury’s precision casting, providing smooth thrust and efficient performance at a more affordable cost than stainless steel models.

Q3: How do I know if this pitch or size is right for my boat?

If your engine reaches its recommended RPM range at wide-open throttle and you’re running a 40–60 HP Mercury outboard, the 10.75" x 12" pitch is an excellent match. Always confirm fitment with your owner’s manual or a Mercury dealer.

Q4: Can this prop be used in both saltwater and freshwater?

Yes, absolutely. The high-gloss Phantom Black finish helps resist corrosion, making it well-suited for both environments with simple cleaning after each trip.

Q5: What hub system does it use?

This propeller is designed for the Quicksilver Flo Torq II hub system, allowing easy installation, smooth operation, and compatibility with multiple engine brands.