Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 9.3" Diameter x 9" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | High-Gloss Phantom Black Finish | QA3906R

Overview

There’s a certain ease that comes from a boat that responds just the way you expect smooth, steady, and confident. The Quicksilver Black Diamond 9.3" x 9" Pitch Propeller (QA3906R) brings that feeling to smaller outboards with effortless precision. It’s the kind of prop you can rely on day after day, season after season simple, dependable, and built to make every moment on the water feel natural and enjoyable.

Whether you’re navigating a calm lake at sunrise, exploring a winding river, or easing through a marina, this prop delivers steady thrust, easy control, and quiet confidence. It doesn’t just move your boat it enhances the experience.

Key Features.

• Diameter and Pitch: 9.3-inch diameter, 9-inch pitch.
• Rotation: Right-Hand.
• Blade Count: 3-Blade design for balanced performance and lift.
• Material: Lightweight, durable aluminum for lasting strength.
• Finish: High-gloss Phantom Black coating for corrosion resistance.
• Hub System: Comes with a pre-installed rubber hub for smooth, secure fitment.
• Design Details: Precision-cast blades reduce vibration and ensure consistent, efficient power delivery.

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 small fishing boats, dinghies, tenders, inflatables, and light runabouts
• Recommended for boats with top speeds under 40 mph
• Suitable for both freshwater and saltwater applications

Performance Benefits.

The Mercury Quicksilver Black Diamond 9" Pitch Propeller might be compact, but it delivers a smooth, confident ride that feels effortless. From the moment you ease the throttle forward, you’ll feel the prop bite the water cleanly and push your boat forward with steady acceleration. There’s no hesitation, no chatter just smooth, dependable power that gets you moving efficiently.

Once on plane, this prop settles into a calm rhythm. The three-blade design gives you excellent balance and control, keeping your boat tracking straight and predictable even when turning or maneuvering at slow speeds. It’s responsive without being twitchy, steady without feeling sluggish a perfect match for small outboards that need reliable thrust and smooth handling.

Efficiency is built into every detail. The prop’s lightweight aluminum construction reduces drag and helps your engine work less to move more. That means better fuel economy, quieter operation, and less wear over time. And when it comes to durability, the high-gloss Phantom Black finish stands strong against corrosion, sand, and salt keeping it looking sharp season after season.

It’s also forgiving. If you ever bump into a rock or shallow bottom, aluminum is far more resilient and easier to repair than stainless steel. That makes it a practical, smart choice for everyday boaters who want peace of mind without overspending.

This prop doesn’t just perform it feels good. Each launch, turn, and cruise becomes smoother and more controlled, letting you focus less on what’s happening below the surface and more on the water ahead.

Why It’s a Strong Choice

The Quicksilver Black Diamond QA3906R is Mercury’s definition of dependable simplicity. It’s designed for real-world boating for people who want their prop to do its job flawlessly without constant attention. It’s light, strong, and built to perform in all the right ways.

Compared to stainless steel props, it’s easier to maintain, more forgiving, and much more affordable, all while offering impressive all-around performance. It’s ideal for smaller boats where precision, balance, and reliability matter most.

For weekend adventurers, anglers, and everyday boaters alike, this prop provides the perfect blend of power, efficiency, and peace of mind. It’s not flashy  it’s just reliable, well-made, and ready to work whenever you are.

FAQ

Q1: Which engines does the Quicksilver Black Diamond 9" Pitch Propeller fit?

This prop fits 9.9–20 HP Honda and Yamaha outboards with 8-tooth splines and can also be used 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 thrust, quiet operation, and excellent control at an affordable price.

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

If your outboard falls within the 9.9–20 HP range and you want reliable push, balanced lift, and easy handling, the 9-inch pitch is a perfect match.

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

Yes. The durable aluminum construction and Phantom Black coating resist corrosion and wear in all environments.

Q5: What hub system does it use?

This prop comes with a rubber hub pre-installed, providing smooth, vibration-free performance and secure installation.