Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 10.6" Diameter x 12" Pitch | Right-Hand Rotation | Three-Blade Design | Aluminum | Black Finish | 8M0185644

Overview

There’s a kind of satisfaction that comes from a day on the water when everything just works the way it should. The boat responds instantly, glides smoothly, and stays steady even when the wind kicks up. That’s the kind of confidence the Quicksilver Black Diamond 3-Blade Aluminum Propeller ( 8M0185644) brings to your time on the water. It’s a propeller built for boaters who value consistency and control. You’ll feel it when you throttle up—smooth acceleration, predictable turns, and a steady ride that just feels right.

Key Features

• Diameter and Pitch: 10.6" Diameter x 12" Pitch
• Rotation: Right-Hand
• Blade Count: Three-Blade Design
• Material: Durable Aluminum Construction for lasting strength and performance
• Finish: High-Gloss Phantom Black Finish for corrosion resistance and a sleek, polished look
• Hub System: Includes rubber hub; compatible with Quicksilver Flo-Torq II Hub Kit
• Design Details: Precision-cast for balance, smooth acceleration, and long-term durability

Engine & Boat Compatibility

• Designed for Mercury FourStroke 25–30 horsepower outboards (2022 and newer with 2.17:1 gear ratio)
• Works with select Mariner and MerCruiser setups using the proper hub system
• Suitable for small to mid-sized outboards up to 250 horsepower
• Ideal for runabouts, pontoons, fishing boats, and light utility boats
• Recommended for boats with top speeds under 50 miles per hour

Performance Benefits

You can tell when a prop and engine just “click.” The Black Diamond 10.6" x 12" Pitch Propeller delivers that connection—quick to lift, smooth to handle, and steady at cruising speeds. When you push the throttle, the prop bites the water cleanly, giving your boat strong, even acceleration without the harsh vibration or chatter some props produce. The three-blade design balances performance and control, helping you get on plane fast and stay there with ease.

Once underway, this prop keeps things quiet and composed. Turns are precise, throttle response feels natural, and the ride stays smooth even through light chop. Made from high-quality aluminum, it’s both tough and forgiving—a great match for everyday boaters who might occasionally graze a sandbar or drift near shallows. The durable Phantom Black finish resists corrosion and keeps its shine, so you’ll spend less time scrubbing and more time cruising.

This prop was designed to make boating simple. It doesn’t demand attention—it just performs, season after season. Whether you’re fishing early mornings or taking the family out for a relaxed afternoon, the Black Diamond keeps your boat moving effortlessly and efficiently.

Why This Prop Is a Strong Choice vs. Alternatives

The Quicksilver Black Diamond Propeller remains a favorite for one simple reason—it’s practical, dependable, and built to Mercury’s high standards. You’re getting Mercury OEM quality without the steep cost of stainless steel. It’s easier to maintain, more affordable to replace, and flexible enough to fit multiple engine setups through the Flo-Torq hub system.

Compared to stainless props, the Black Diamond’s aluminum design absorbs impact better and is simpler to repair, making it ideal for boaters who value reliability and cost-effectiveness. It’s not about flash—it’s about knowing your gear won’t let you down. For weekend anglers, family cruisers, and anyone who wants solid performance without complication, this prop is the right fit.

FAQ

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

It’s designed for Mercury and Mariner FourStroke outboards between 25 and 30 horsepower, built from 2022 onward with a 2.17:1 gear ratio.

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

It’s the perfect blend of Mercury craftsmanship and durable aluminum design, offering dependable performance and smooth handling at an accessible price point.

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

The 10.6" x 12" pitch is ideal for smaller outboards needing quick lift and smooth, efficient cruising. It’s best suited for boats operating below 50 miles per hour.

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

Yes. The Phantom Black finish resists corrosion in both saltwater and freshwater, ensuring longevity and easy maintenance.

Q5: What hub system does it use?

This prop includes a rubber hub and works with the Quicksilver Flo-Torq II Hub System, which cushions shifts, reduces vibration, and protects your drivetrain.