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Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 9.25" Diameter x 10" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | High-Gloss Phantom Black Finish | QA3914R

Overview

There’s a certain kind of satisfaction that comes when your boat feels perfectly tuned when the throttle responds effortlessly, the waterline stays steady, and you can sense that quiet connection between power and control. The Quicksilver Black Diamond 9.25" x 10" Pitch Propeller (QA3914R) delivers that kind of confidence every time you head out.

It’s the prop that doesn’t call attention to itself; it just performs cleanly, smoothly, and reliably. From calm lake mornings to coastal cruising, this prop provides consistent thrust and balance that turns every trip into something a little more enjoyable.

Key Features.

• Diameter and Pitch: 9.25-inch diameter, 10-inch pitch
• Rotation: Right-Hand.
• Blade Count: 3-Blade design for smooth lift and efficient acceleration
• Material: Durable aluminum for lightweight performance and easy maintenance.
• Finish: High-gloss Phantom Black coating for corrosion resistance and sleek appearance
• Hub System: Includes a pre-installed rubber hub for vibration-free operation.
• Design Details: Precision-cast blades designed to reduce drag and deliver consistent, balanced thrust

Engine & Boat Compatibility.

• Designed for 9.9–20 HP Honda and Yamaha outboard engines with 8-tooth splines
• Compatible with Mercury, Mariner, and MerCruiser engines using the proper hub system
• Ideal for dinghies, tenders, small fishing boats, inflatables, and utility skiffs
• Recommended for boats with top speeds under 40 mph
• Suitable for both freshwater and saltwater environments.

Performance Benefits.

The Mercury Quicksilver Black Diamond 10" Pitch Propeller might be compact, but it delivers an impressive sense of control and responsiveness on the water. The moment you ease into the throttle, you’ll feel how cleanly it grips no hesitation, no chatter, just a confident, steady pull that moves your boat with precision.

Once you’re underway, that control only gets better. The prop’s three-blade design strikes the perfect balance between lift, speed, and efficiency, giving smaller boats smooth acceleration and predictable handling. Whether you’re weaving through tight marina spaces or cruising at midrange, the prop keeps your boat steady, stable, and easy to handle.

The lightweight aluminum construction makes every ride efficient and forgiving. You’ll use less fuel without sacrificing thrust, and if you ever tap a rock or sandbar, aluminum’s resilience makes repairs far simpler and less costly than with stainless steel. The high-gloss Phantom Black finish also does more than look sharp it provides strong protection against corrosion, salt, and debris, ensuring lasting durability season after season.

From a smooth idle to full power, this prop stays quiet, steady, and balanced. It’s the kind of prop you can rely on whether you’re heading out for work, leisure, or a long weekend cruise.

Why It’s a Strong Choice

The Quicksilver Black Diamond QA3914R is proof that great performance doesn’t need to be complicated. Mercury designed this prop to offer boaters what matters most dependable thrust, easy handling, and lasting value.

Compared to stainless steel props, it’s lighter, easier to maintain, and much more forgiving ideal for smaller boats that see frequent use in varied conditions. It’s the right balance of performance and practicality, making it a trusted choice for weekend boaters, anglers, or anyone who simply wants to enjoy a stress-free day on the water.

You’ll notice it most in how natural your boat feels responsive without overreacting, powerful without noise or vibration. It’s that subtle, dependable difference that separates a good prop from a great one.

FAQ

Q1: Which engines does the Quicksilver Black Diamond 10" Pitch Propeller fit?

This propeller fits 9.9–20 HP Honda and Yamaha outboards with 8-tooth splines and can also work with other small-engine brands using the proper hub system.

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

It’s optimized for small-engine performance, offering smooth acceleration, reliable handling, and excellent efficiency at an accessible price point.

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

If your outboard falls between 9.9–20 HP and you want responsive handling with strong midrange power, the 10-inch pitch is a great match.

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

Yes. The durable aluminum body and Phantom Black finish provide long-lasting protection against corrosion and wear in any environment.

Q5: What hub system does it use?

This prop includes a rubber hub pre-installed, ensuring smooth, quiet performance and a secure, vibration-free fit.