Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 8.3" Diameter x 8" Pitch | Right-Hand Rotation | 3 Blades | Aluminum | Black Finish | QA3178R

Overview

There’s something undeniably peaceful about a morning out on the water — the hum of the motor, the glassy surface breaking under your boat, and that steady rhythm that keeps you moving forward. The Quicksilver Black Diamond 8.3" x 8" Aluminum Propeller is built for exactly that feeling. It’s not just about getting from one point to another; it’s about the confidence that comes from knowing your prop will perform every single time. This Mercury propeller delivers smooth thrust, quiet handling, and dependable performance — the kind of reliability that makes every trip effortless.

Key Features

• Diameter and Pitch: 8.3" diameter, 8" pitch
• Rotation: Right-Hand
• Blade Count: 3 blades
• Material: Cast aluminum for strength and lightweight durability
• Finish: High-gloss Phantom Black coating for corrosion resistance
• Hub System: Rubber hub included for smoother operation and reduced vibration
• Design Details: Precision-balanced for optimal performance, efficiency, and easy maintenance

Engine & Boat Compatibility

• Designed for 8–14 horsepower engines with Pin drive systems (various makes and models)
• Compatible with Mercury, Mariner, and other small-engine brands using similar hub configurations
• Great fit for dinghies, inflatables, aluminum fishing boats, and light utility boats
• Perfect for boaters seeking quiet operation, predictable control, and easy maintenance

Performance Benefits

The Black Diamond 8.3" x 8" isn’t about chasing speed records — it’s about balance and control. From the first push of the throttle, you’ll feel the propeller’s grip in the water, giving you clean acceleration and steady lift. It moves your boat with quiet confidence, helping you plane out smoothly and handle shifting currents with ease.

The three-blade design provides just the right mix of thrust and efficiency. You’ll notice how smoothly it transitions between idle and cruising speeds, especially when maneuvering near docks or tight channels. There’s no harsh vibration or unpredictable pull — just that steady, even response that makes boating feel natural.

Its Phantom Black finish isn’t just sleek — it’s practical. It resists corrosion, salt buildup, and small nicks from underwater debris. Maintenance couldn’t be simpler: a quick rinse and it’s ready for the next trip. And because it’s made from high-quality aluminum, it’s both lightweight and forgiving. If you happen to graze a sandbar or rock, it’s usually repairable — unlike stainless props that can turn a minor bump into a major expense.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM quality: Built to the same precision standards trusted by Mercury engineers.
• Durable and affordable: Delivers reliable performance without the cost of stainless steel.
• Low-maintenance finish: The high-gloss Phantom Black coating defends against wear and corrosion.
• Smooth and quiet operation: The rubber hub absorbs vibration and ensures consistent power transfer.
• Versatile fit: Works across multiple small-engine configurations, making it a go-to for dependable performance.

This propeller is perfect for boaters who prefer reliability and simplicity. Whether you’re navigating calm lakes, fishing quiet coves, or just cruising near shore, the Black Diamond 8.3" x 8" gives you steady performance that you can count on, season after season.

FAQ

Q1: Which engines does the Quicksilver Black Diamond 8.3" x 8" fit?

It’s designed for 8–14 horsepower engines with Pin drive systems, compatible with various makes and models, including Mercury and Mariner.

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

It’s built for smaller engines that need balance and control rather than high-speed power, offering smooth thrust, quiet operation, and easy maintenance.

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

If your boat uses an 8–14 horsepower engine and you value steady lift, predictable handling, and durability, this 8.3" x 8" pitch prop is a great match.

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

Yes. The Phantom Black finish protects against corrosion and salt buildup in both environments — just rinse after saltwater use to maintain its shine.

Q5: What hub system does it use?

This model includes a rubber hub, which absorbs vibration and ensures smooth, quiet power transfer for consistent, reliable performance.