Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 7.8" Diameter x 8" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | High-Gloss Phantom Black Finish | QA3184R

Overview

Every boater knows that feeling when a prop just fits when it grips the water cleanly, accelerates without hesitation, and makes the boat feel perfectly tuned. The Quicksilver Black Diamond 7.8" x 8" Pitch Propeller (QA3184R) captures that magic in a small but mighty package. Smooth, balanced, and easy to handle, it’s the kind of prop you trust every time you leave the dock.

Built for smaller boats and portable Mercury outboards, this prop delivers dependable push and predictable handling for calm lakes, coastal waters, or quiet marina runs. It’s light, durable, and steady everything you need for smooth, reliable boating, day after day.

Key Features

• Diameter and Pitch: 7.8-inch diameter, 8-inch pitch
• Rotation: Right-Hand
• Blade Count: 3-Blade design for consistent lift and clean acceleration
• Material: Strong aluminum for durability and lightweight performance
• Finish: High-gloss Phantom Black coating for corrosion resistance and lasting style
• Hub System: Pre-installed rubber hub for vibration-free operation
• Design Details: Precision-cast for balanced, consistent performance and long-term reliability

Engine & Boat Compatibility

• Designed for 4–6 HP Mercury outboards
• Compatible with Mercury, Mariner, and MerCruiser engines
• Works with other small outboards via the Quicksilver Flo-Torq II hub system
• Ideal for dinghies, inflatables, tenders, utility skiffs, and small fishing boats
• Recommended for boats with top speeds under 40 mph
• Suitable for freshwater and saltwater boating

Performance Benefits

Don’t let its size fool you the Mercury Quicksilver Black Diamond 8" Pitch Propeller packs a confident punch on the water. From the first throttle push, you’ll feel that crisp, steady thrust that gets your boat moving cleanly and efficiently. It’s smooth, predictable, and remarkably responsive the kind of prop that makes small outboards feel like they’re running on rails.

At cruising speed, it delivers a calm, steady ride. Turns are fluid and controlled, with no chatter or vibration, even when maneuvering at low speeds or in chop. The three-blade design ensures consistent grip and lift, keeping your boat stable while reducing drag for a smoother, quieter experience.

The lightweight aluminum build makes it fuel-efficient and easy on your engine, while the Phantom Black finish stands up to corrosion, salt, and abrasion. It’s the kind of prop you can rely on for everyday boating durable, affordable, and forgiving when the occasional bump or scrape happens.

Whether you’re motoring out to fish at sunrise, ferrying passengers to shore, or simply enjoying a calm afternoon cruise, this prop gives your small outboard that perfect balance of performance and peace of mind.

Why It’s a Strong Choice

The Quicksilver Black Diamond QA3184R is Mercury’s answer for boaters who want dependable, no-fuss performance from their small engines. It’s engineered for efficiency, comfort, and reliability — everything that makes boating simple and enjoyable.

Compared to stainless steel props, it’s lighter, more affordable, and easier to maintain. It’s built to take on everyday conditions without sacrificing performance, giving you smoother acceleration, better control, and lasting value.

This prop doesn’t just move water — it transforms how your boat feels under power. Quiet, steady, and strong, it’s the perfect fit for boaters who want to focus less on the gear and more on the joy of being on the water.

FAQ

Q1: Which Mercury engines does the Quicksilver Black Diamond 8" Pitch Propeller fit?

This prop fits 4–6 HP Mercury outboard engines and can also work with other small-engine brands using the Quicksilver Flo-Torq II hub system.

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

It’s optimized for small-engine efficiency — offering smooth handling, reliable acceleration, and easy maintenance at a great value.

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

If your boat runs a 4–6 HP motor and you want clean thrust, reliable tracking, and balanced performance, the 8-inch pitch is ideal.

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

Yes. The Phantom Black finish protects against corrosion in all environments.

Q5: What hub system does it use?

The Quicksilver Black Diamond QA3184R comes with a rubber hub pre-installed for smooth, secure, and vibration-free operation.