Mercury – Quicksilver Black Diamond Bravo Two Propeller | 17.75" Diameter x 21" Pitch | Right-Hand Rotation | 3 Blades | Aluminum | Black Finish | QA1946R

Overview

There’s something powerful about the way a big boat moves when it’s got the right prop behind it — steady, confident, and unhurried. The Quicksilver Black Diamond Bravo Two Propeller is built for that kind of control. Designed to handle serious torque, it pushes heavy hulls with a smooth, deliberate strength that you can feel from the throttle to the wheel. It’s a prop made for boaters who understand that reliability and thrust aren’t luxuries — they’re the heart of every trip on the water.

Key Features

• Diameter & Pitch: 17.75" Diameter x 21" Pitch

• Rotation: Right-Hand

• Blade Count: 3 Blades

• Material: Rugged aluminum construction built for strength and value

• Finish: Durable black coating for corrosion resistance and long-lasting protection

• Hub System: Equipped with Flo-Torq I rubber hub (Part Number 43636T)

• Design Details: Large, heavy-duty blades deliver maximum thrust and consistent lift for big boats

Engine & Boat Compatibility

• Designed for MerCruiser engines with Bravo Two drives

• Ideal for large cruisers, pontoon boats, workboats, and houseboats

• Engineered to handle high torque, lower-RPM performance with impressive thrust

• Compatible with Mercury sterndrive setups using Bravo Two propellers

Performance Benefits

You’ll know it’s working the first time you throttle forward. The Black Diamond Bravo Two’s oversized blades dig in and move water efficiently, turning big power into steady, controlled motion. It delivers strong bite in forward and reverse, which makes docking and maneuvering heavy boats smoother and more predictable.

On plane, it holds firm — no slip, no strain — just clean, confident thrust that keeps you moving without overworking your engine. The ride feels steady, even in rougher chop. That’s thanks to the broad blade area that spreads load evenly and keeps vibration low. Whether you’re cruising, towing, or idling through the marina, everything about this prop feels deliberate and balanced.

Maintenance is easy too. The aluminum design offers enough strength for long-term reliability while remaining forgiving if you ever graze sand or debris. And that deep black finish doesn’t just look good — it protects the prop and makes cleanup quick after a long day on the water.

Why is this prop a strong choice vs. alternatives?

If you’ve spent time behind the wheel of a boat with a Bravo Two drive, you already know you need a prop with muscle — one that won’t flinch when asked to move serious weight. This Mercury propeller hits that mark perfectly. It combines dependable Mercury OEM engineering with a cost-effective aluminum build, giving you power, control, and peace of mind without the high cost of stainless steel.

The wide blades offer excellent thrust at lower speeds, making it easier to hold plane, tow, or maintain steady cruising. It’s a practical, proven choice for anyone who values smooth handling and long-term reliability. When it comes down to it, this isn’t just another propeller — it’s a workhorse you can count on every time you fire up the engine.

FAQ Section

Q1: Which Mercury engines does the Quicksilver Black Diamond Bravo Two Propeller fit?
It’s built for MerCruiser engines equipped with Bravo Two drives, offering exceptional thrust and handling for larger boats that need torque-heavy performance.

Q2: What makes this propeller different from other Mercury options?
The Bravo Two version of the Black Diamond features a much larger blade area than standard props, providing better bite, smoother handling, and greater efficiency for heavy boats.

Q3: How do I know if this pitch or size is right for my boat?
If you’re running a Bravo Two drive and want a prop that balances low-speed thrust with solid cruising performance, the 17.75" x 21" pitch is a great choice. Always confirm your pitch range with your engine’s manual or a Mercury prop chart.

Q4: Can this prop be used in both saltwater and freshwater?
Yes. The protective black finish resists corrosion in both environments. Just rinse it after saltwater use for the best longevity.

Q5: What hub system does it use?
This propeller includes the Flo-Torq I rubber hub (Part Number 43636T), designed to absorb shock, reduce vibration, and protect your lower unit for smoother, quieter operation.