Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 9.3" Diameter x 10" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | Phantom Black Finish | QA2175R

Overview

There’s a certain kind of satisfaction in knowing your boat responds exactly the way you expect it to. The Quicksilver Black Diamond 3-Blade Aluminum Propeller gives you that feeling — smooth, sure, and easy every time you throttle up. Whether you’re gliding out for an early morning of fishing or cruising back toward the dock at sunset, it’s a prop that feels steady and dependable from start to finish.

This isn’t the kind of prop that demands attention. It just does its job, quietly and confidently, run after run. You’ll feel its grip in the water, the balanced lift, and the steady push that makes small-boat handling effortless. For boaters who appreciate reliability and balance, this is the prop that earns its keep without any fuss.

Key Features

• Diameter and Pitch: 9.3" Diameter x 10" Pitch
• Rotation: Right-Hand Rotation
• Blade Count: 3-Blade design for balanced thrust and smooth acceleration
• Material: Cast aluminum for durability and long service life
• Finish: High-gloss Phantom Black finish resists corrosion and looks sharp
• Hub System: Includes rubber hub compatible with the Quicksilver Flo Torq II system
• Design Details: Precision-balanced casting provides efficient lift and minimal vibration

Engine & Boat Compatibility

• Designed for 15–20 HP Mercury FourStroke and 9.9 HP Command Thrust engines (2005 & newer)
• Works with various Mercury, Mariner, and MerCruiser models using the Flo Torq II hub system
• Ideal for small fishing boats, compact runabouts, and lightweight utility boats
• Recommended for boats with a top speed under 50 mph

Performance Benefits

This Black Diamond prop is all about control and comfort on the water. It offers quick, confident acceleration — the kind that lets you get up on plane without hesitation — and steady cruising once you’re there. You’ll notice how cleanly it grips the water, how smoothly it tracks in turns, and how balanced it feels even when conditions get choppy.

The 3-blade design provides just the right amount of bite, delivering solid thrust while keeping vibration low. It’s quiet, responsive, and predictable — exactly what you want when precision matters most. Whether you’re navigating narrow channels or skimming open water, it feels composed and connected beneath you.

Maintenance is just as easy. The durable aluminum body holds up to regular use, while the glossy Phantom Black finish helps resist corrosion from both freshwater and saltwater environments. It’s easy to clean, forgiving to small scuffs, and built to perform season after season.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM quality: Manufactured to Mercury’s exacting standards for performance, fit, and longevity.
• Reliable and easy to maintain: Aluminum construction makes it lightweight yet tough, with minimal upkeep required.
• Cost-effective alternative to stainless steel: Offers smooth handling and strong thrust without the higher price tag.
• Versatile fit: Works across multiple engine brands using the Quicksilver Flo Torq II hub system.
• Proven real-world performance: Trusted by boaters for years for its steady handling, efficient lift, and reliable push.

If you’re the kind of boater who values simplicity and performance, this prop delivers exactly that. It’s dependable, efficient, and designed to keep your time on the water easy and enjoyable.

FAQ

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

This prop is designed for 15–20 HP Mercury FourStroke engines and 9.9 HP Command Thrust models from 2005 and newer.

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

It’s known for its balance of durability, smooth handling, and affordability — the go-to prop for small-boat owners who want dependable performance.

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

If you’re running a 15–20 HP outboard and want strong acceleration, smooth cruising, and easy handling, the 9.3" x 10" pitch setup is ideal.

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

Yes. The Phantom Black finish resists corrosion, making it durable in both environments. Just rinse it after saltwater runs.

Q5: What hub system does it use?

It includes a rubber hub compatible with the Quicksilver Flo Torq II system, allowing smooth power transfer and broad engine compatibility.