Mercury – Black Max 3-Blade Aluminum Propeller | 9.25" Diameter x 12.5" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | Phantom Black Finish | 896900A40

Overview

There’s a feeling every boater knows — that perfect moment when the boat lifts cleanly onto plane, the engine hums just right, and the water slides past like glass. That kind of effortless control doesn’t come from luck; it comes from a prop that’s built to perform. The Mercury Black Max 3-Blade Aluminum Propeller (Part Number 896900A40) delivers that steady, confident feel that makes every trip smoother, quieter, and more enjoyable. Trusted by boaters for years, it’s the prop you can count on when you just want to get out there and let the water do the talking.

Key Features

• Diameter and Pitch: 9.25" Diameter x 12.5" Pitch

• Rotation: Right-Hand

• Blade Count: 3

• Material: Patented Mercalloy Aluminum Alloy

• Finish: Mercury Phantom Black Glossy Enamel

• Hub System: Rubber-cushioned hub reduces vibration and protects drivetrain

• Design Notes: Precision-balanced construction; flexible aluminum alloy engineered to handle light impacts

Engine & Boat Compatibility

• Designed for Mercury and Mariner 25–30 HP FourStroke outboards (2006 and newer)

• Excellent fit for small fishing boats, lightweight aluminum runabouts, and tenders

• Works well for boaters who value quick planing, fuel efficiency, and smooth cruising

Performance Benefits

You’ll notice the difference the moment you throttle up. The 9.25" x 12.5" pitch gives your boat strong, responsive acceleration and a steady grip through turns, letting you move with precision even in choppy water. At cruising speed, it stays smooth and balanced — no rattle, no harsh feedback, just clean thrust and control.

The Mercalloy aluminum strikes a perfect balance between toughness and forgiveness. It’s strong enough to stand up to debris or shallow encounters, yet ductile enough to flex slightly and prevent serious damage. Meanwhile, the rubber hub keeps vibrations in check, protecting the drivetrain and giving you a more comfortable, quieter ride. When you’re done for the day, a quick rinse is all it takes to keep it ready for the next outing — that’s the kind of maintenance simplicity every boater can appreciate.

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

If you’re looking for an honest, hardworking propeller that just gets the job done, the Mercury Black Max 896900A40 is it. This is the prop many Mercury-powered boats come standard with — and that’s no accident. It offers dependable performance, easy handling, and a level of durability that’s tough to beat for its price point.

Compared to stainless options, it s more forgiving, less expensive to replace, and ideal for boaters who like to explore shallow waters without the stress of damaging a costly prop. Mercury’s decades of marine engineering are built into every curve and contour, ensuring a perfect fit and balanced operation. Whether you’re chasing early-morning bites or taking the family out for a sunset ride, this propeller gives you the confidence to just enjoy the water.

FAQ Section

Q1: Which Mercury engines does the Black Max 9.25" x 12.5" fit?

It’s made for Mercury and Mariner 25–30 HP FourStroke outboards from 2006 and newer.

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

The Black Max uses Mercury’s proprietary Mercalloy aluminum alloy — strong, flexible, and designed to withstand everyday wear while maintaining balance and performance.

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

If your engine is in the 25–30 HP range and you’re looking for smooth cruising and crisp acceleration, this 12.5" pitch prop is a great fit. Always double-check your owner’s manual for recommended prop sizes.

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

Yes. The Phantom Black enamel finish provides strong corrosion protection in both salt and freshwater. Rinse it with clean water after each use to help preserve the coating.

Q5: What hub system does it use?

This propeller features a rubber-cushioned hub that helps absorb vibration and shields the drivetrain from damage caused by light impacts or sudden prop strikes.