Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 9" Diameter x 9" Pitch | Right-Hand Rotation | 3 Blades | Aluminum | Black Finish | QA2128R

Overview

Every boater has that moment — when the engine hums just right, the boat eases onto plane, and the water stretches out like glass. The Quicksilver Black Diamond 9" x 9" Aluminum Propeller was made for those days when you just want smooth, steady performance without any drama. It’s a prop you can rely on time after time — simple, efficient, and built to last. Whether you’re exploring calm coves or making your way back through a light chop, this Mercury propeller delivers the kind of control and confidence that keeps your time on the water effortless and enjoyable.

Key Features

• Diameter and Pitch: 9" diameter, 9" pitch
• Rotation: Right-Hand
• Blade Count: 3 blades
• Material: Cast aluminum
• Finish: High-gloss Phantom Black coating
• Hub System: Rubber hub included
• Design Details: Precision-balanced casting designed for durability, efficiency, and long-term reliability

Engine & Boat Compatibility

• Designed for 6–15 horsepower Mercury outboard engines (2005 and newer, excluding 8–9.9 HP FourStroke models)
• Also compatible with Mariner and similar small-engine setups using rubber hub systems
• Ideal for small fishing boats, dinghies, inflatables, and aluminum craft
• Perfect for tight handling, quiet operation, and reliable performance on calm or light waters

Performance Benefits

The Black Diamond 9" x 9" is designed to give smaller boats the smooth power they deserve. From the first throttle push, you’ll feel a confident pull as the prop digs in — not too aggressive, not too soft, just right. Its three-blade design keeps acceleration clean and steady, helping you reach plane smoothly while maintaining balance and control.

Once you’re underway, you’ll appreciate how stable and responsive it feels. Steering is predictable, and transitions between idle and cruise are smooth and natural. Around docks and narrow channels, it delivers quiet precision, helping you maneuver with confidence.

The Phantom Black finish not only looks sharp but stands up against saltwater and freshwater corrosion. It resists nicks and buildup, so it’s easy to maintain — just a quick rinse and you’re done. And since it’s made of durable aluminum, it’s forgiving when you bump into shallow areas or graze a rock, meaning minor scuffs don’t turn into major repairs.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM quality: Built with the same trusted standards that Mercury uses for their factory props.
• Durable and affordable: Aluminum design offers strength and resilience without the expense of stainless steel.
• Low-maintenance protection: The high-gloss Phantom Black finish defends against corrosion, scratches, and wear.
• Versatile fit: The included rubber hub system ensures smooth power transfer and easy installation.
• Reliable performance: Proven on small outboards for years — offering steady grip, predictable handling, and lasting value.

The Black Diamond 9" x 9" is a true all-rounder. It’s the perfect match for smaller engines and everyday boaters who want dependable power, easy upkeep, and a ride that just feels right.

FAQ

Q1: Which Mercury engines does the Quicksilver Black Diamond 9" x 9" fit?

It’s designed for 6–15 horsepower Mercury outboards (2005 and newer), excluding 8–9.9 HP FourStroke models.

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

It’s lightweight, balanced, and tuned for small engines — providing smooth thrust, quiet operation, and simple maintenance without sacrificing performance.

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

If you’re running a 6–15 HP Mercury and want easy handling, consistent lift, and steady acceleration, the 9" x 9" pitch is a reliable fit.

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

Yes. The Phantom Black coating protects it from corrosion and buildup in both environments. Just rinse after saltwater use for best results.

Q5: What hub system does it use?

This model includes a rubber hub pre-installed, offering quiet operation, smooth torque transfer, and excellent vibration absorption.