Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 9.25" Diameter x 9" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | Phantom Black Finish | QA2173R

Overview

There is a certain satisfaction that comes from feeling your boat respond exactly how you want it to — steady, sure, and smooth through every turn. That’s the feeling you get with the Quicksilver Black Diamond 3-Blade Aluminum Propeller. It’s not just a piece of metal bolted to the motor; it’s the connection between your boat and the water, the piece that makes every throttle push feel confident. Whether you’re idling along the shore or opening up across a wide bay, this prop delivers the kind of control that makes boating feel effortless.

This one’s made for boaters who value consistency — the kind of people who don’t want to tinker every weekend, but still expect solid lift, smooth handling, and reliable power every time they head out.

Key Features

• Diameter and Pitch: 9.25" Diameter x 9" Pitch
• Rotation: Right-Hand Rotation
• Blade Count: 3-Blade Design for balanced thrust and efficiency
• Material: Cast aluminum construction for lasting strength
• Finish: High-gloss Phantom Black finish for corrosion resistance
• Hub System: Includes rubber hub, compatible with the Quicksilver Flo Torq II system
• Design Details: Precision casting for smooth acceleration, durability, and easy upkeep

Engine & Boat Compatibi-lity

• Designed for 15–20 HP Mercury FourStroke engines (2005 and newer)
• Compatible with 9.9 HP Command Thrust engines (2005 and newer)
• Suitable for small fishing boats, compact runabouts, and lightweight utility boats
• Ideal for boats operating under 50 mph, offering dependable control and performance

Performance Benefits

When you install the Black Diamond, you’ll notice the difference from the first run. The prop bites the water with confidence, giving you steady lift and smooth acceleration as you come up on plane. There’s no harsh vibration — just a firm, consistent pull that makes every ride feel composed.

This propeller’s 3-blade design delivers excellent balance between power and efficiency. It’s quick to respond when you throttle up but gentle enough for slow, steady trolling. You’ll appreciate the quiet hum as the Phantom Black blades cut through the water, maintaining grip even in choppy conditions.

Durability is another strong suit. The high-quality aluminum build holds up well against wear, while the glossy black finish stands guard against corrosion and scratches. Cleanup is simple — a quick rinse and you’re ready for the next outing. It’s the kind of low-maintenance reliability that lets you spend more time boating and less time repairing.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM quality: Manufactured to the same standards as Mercury’s original props for perfect balance and trusted performance.
• Reliable and easy to maintain: Durable aluminum and a protective finish mean less worry about chips or corrosion.
• Cost-effective performance: Delivers great efficiency and acceleration without the high cost of stainless steel props.
• Versatile fit: Works seamlessly across multiple Mercury and Mariner engines with the Flo Torq II hub system.
• Real-world dependability: Ideal for boaters who want consistent handling, good lift, and smooth control every time they hit the throttle.

This is a prop you can trust — not because it’s the fanciest one out there, but because it quietly does its job every single time. It’s the dependable performer that keeps your weekends on the water easy and enjoyable.

FAQ

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

It’s made 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?

The Black Diamond is known for its smooth, predictable handling and durability. It’s an affordable option that still feels solid under all kinds of water conditions.

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

If you’re running a smaller outboard in the 15–20 HP range and looking for a prop that delivers reliable acceleration and control, the 9.25" x 9" setup is a great match.

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

bAbsolutely. The high-gloss Phantom Black finish protects it from corrosion in either environment, as long as you rinse it after use.

Q5: What hub system does it use?

This prop includes a rubber hub compatible with the Quicksilver Flo Torq II hub system, allowing for smooth power transfer and easy installation.