Mercury – Black Max 3-Blade Aluminum Propeller | 9.25" Diameter x 9" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | Phantom Black Finish | 897750A11

Overview

There’s a certain kind of peace that comes from knowing your prop will perform exactly how you expect it to — every time you turn the key. The Mercury Black Max 3-Blade Aluminum Propeller (Part Number 897750A11) is trusted by countless boaters for that reason. It’s the dependable workhorse of the water, built to deliver smooth handling, solid thrust, and quiet confidence whether you’re fishing a hidden cove or cruising open water. It’s that perfect balance between performance and reliability that makes you forget it’s even there — until you realize how effortless your day on the water feels.

Key Features

• Diameter and Pitch: 9.25" Diameter x 9" Pitch

• Rotation: Right-Hand

• Blade Count: 3

• Material: Patented Mercalloy Aluminum Alloy

• Finish: Mercury Phantom Black Glossy Enamel

• Hub System: Rubber bushing to absorb vibration and protect the drivetrain

• Design Notes: Lightweight, balanced, and flexible aluminum construction designed to handle light impacts and maintain smooth performance

Engine & Boat Compatibility

• Designed for Mercury and Mariner 9.9 HP FourStroke BigFoot/Command Thrust (2005 and newer)

• Fits 9.9 HP ProKicker and 15–20 HP FourStroke outboards (2008 and newer)

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

• Perfect for boaters who value dependable acceleration, smooth cruising, and easy maintenance

Performance Benefits

You will feel the Mercury Black Max difference the moment you leave the dock. The 9.25" x 9" pitch strikes a perfect balance between responsive low-end thrust and smooth midrange cruising. It grips the water with a steady pull, helping your boat plane quickly and stay balanced, even with a light load. Turns feel confident and deliberate, with no unexpected slip — just solid, predictable handling from start to finish.

The Mercalloy aluminum alloy gives this Mercury propeller its signature strength and forgiveness. It’s tough enough to handle years of use yet flexible enough to absorb minor impacts without cracking or losing performance. The rubber hub system reduces vibration and noise, protecting your engine while keeping your ride calm and quiet. That means less buzz through the tiller, less fatigue at the helm, and more time spent enjoying the water instead of thinking about your equipment.

Why is this prop is a strong choice vs. alternatives?

If you’ve spent enough time around docks or bait shops, you’ve heard the name Black Max more than once — and for good reason. It’s one of Mercury’s most trusted propellers, known for its ability to deliver reliable, no-nonsense performance year after year. The 897750A11 version takes that legacy and brings it to smaller outboards with impressive results.

Compared to stainless props, it’s lighter, more forgiving, and far easier on your wallet — yet it still carries Mercury’s proven engineering pedigree. The Phantom Black enamel finish helps fight corrosion in both saltwater and freshwater, while its precision-balanced blades ensure smooth running every time you throttle up. Whether you’re trolling quietly for fish or cruising with family, this prop keeps things simple — reliable, efficient, and easy to trust.

FAQ Section

Q1: Which Mercury engines does the Black Max 9.25" x 9" fit?

It’s designed for Mercury and Mariner 9.9 HP FourStroke BigFoot/Command Thrust (2005 and newer), 9.9 HP ProKicker, and 15–20 HP FourStroke outboards (2008 and newer).

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

It’s made from Mercury’s exclusive Mercalloy aluminum alloy, designed to be both durable and flexible. This material helps prevent damage from light impacts while maintaining strong performance.

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

If you’re running a 9.9–20 HP engine and want smooth, responsive acceleration and steady cruising control, the 9" pitch is an excellent choice. Always verify your boat and motor specifications for the best fit.

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

Yes. The Phantom Black glossy enamel finish provides corrosion protection in both environments. A quick rinse after use helps maintain its finish and longevity.

Q5: What hub system does it use?

This prop uses a rubber-cushioned hub designed to absorb vibration and protect your drivetrain from shock during small underwater impacts or sudden prop strikes.