Mercury – Quicksilver Black Diamond 3-Blade Aluminum Propeller | 10" Diameter x 8" Pitch | Right-Hand Rotation | 3 Blades | Aluminum | High-Gloss Black Finish | QA2190R

Overview

Every boater knows that moment when the motor settles into a smooth hum, the boat lifts gently onto plane, and everything just feels right. That kind of balance doesn’t happen by accident — it comes from a prop built to do its job without fuss. The Quicksilver Black Diamond 3-Blade Aluminum Propeller gives you that steady, confident push every time you head out. It’s reliable, easy to live with, and made for those who appreciate smooth control and simple dependability more than anything flashy.

Key Features

• Diameter & Pitch: 10" Diameter x 8" Pitch

• Rotation: Right-Hand

• Blade Count: 3 Blades

• Material: Durable aluminum construction for lasting performance

• Finish: High-gloss Phantom Black coating for corrosion resistance and easy upkeep

• Hub System: Rubber hub included for quiet, smooth operation

• Design Details: Precision-cast design provides balanced performance and efficient lift

Engine & Boat Compatibility

• Designed for Mercury FourStroke outboard engines in the 25–30 horsepower range (2006 and newer)

• Works with Mariner and compatible outboards using the same hub design

• Ideal for small fishing boats, dinghies, inflatables, and lightweight runabouts

• Recommended for boats with top speeds under 50 mph

• Performs well in both freshwater and saltwater environments

Performance Benefits

You’ll notice right away how clean and responsive this prop feels under throttle. It grips the water firmly, lifting the boat smoothly onto plane without over-revving or slipping. Acceleration is predictable and steady — the kind that gives you full control whether you’re easing away from the dock or running wide open.

Once you’re cruising, the ride stays smooth and quiet. The three-blade setup provides solid thrust with minimal vibration, while the aluminum build keeps things light and efficient. Steering feels easy, and the prop holds a steady line even in moderate chop. It’s forgiving, too — if you happen to clip a shallow patch, the aluminum construction can take it and keep you moving.

That glossy Phantom Black finish isn’t just for looks; it stands up to the elements and wipes clean after a salty day on the water. The Quicksilver Black Diamond 10" x 8" pitch prop is built for real boating — where reliability matters more than polish, and every trip should feel smooth and easy.

Why is this prop a strong choice vs. alternatives?

For most small-boat owners, stainless steel isn’t necessary. This Mercury propeller delivers the right mix of strength, value, and performance — without overcomplicating things. You’re getting genuine Mercury OEM quality in an affordable, low-maintenance aluminum design.

It’s efficient, easy to replace, and versatile enough to work across several setups using the Quicksilver Flo-Torq system. The 10" x 8" pitch makes it ideal for smaller boats that need dependable power at lower speeds, whether you’re cruising, fishing, or running short trips near shore. If you’re after a prop that just works — every time — this is the one.

FAQ Section

Q1: Which Mercury engines does the Quicksilver Black Diamond 10" x 8" Propeller fit?
It’s made for Mercury FourStroke outboard engines in the 25–30 horsepower range (2006 and newer) and works with select Mariner models that share the same hub design.

Q2: What makes this propeller different from other Mercury options?
It’s a durable, well-balanced aluminum prop designed for smaller engines, offering smooth acceleration and reliable performance without the higher cost of stainless steel.

Q3: How do I know if this pitch or size is right for my boat?
If your engine reaches its proper RPM range at wide-open throttle and you want steady acceleration with easy handling, the 10" x 8" pitch is likely a solid match. Check your engine manual to confirm.

Q4: Can this prop be used in both saltwater and freshwater?
Yes. Its high-gloss Phantom Black coating provides excellent corrosion resistance in both environments. A simple rinse after saltwater use will keep it in top shape.

Q5: What hub system does it use?
This prop includes a rubber hub designed to absorb shock, minimize vibration, and ensure smooth engagement when shifting gears.