Mercury – Black Max 3-Blade Aluminum Propeller | 10.875" Diameter x 11" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | Phantom Black Finish | 85632A45

Overview

There’s a moment every boater looks forward to that smooth launch when the water parts cleanly behind you and the engine hums in perfect rhythm. The Mercury Black Max 3-Blade Aluminum Propeller (85632A45) is built for those moments. It’s not flashy or complicated; it’s dependable, durable, and simply works every time you turn the key. Whether you’re pushing off at dawn for a quiet fishing trip or cruising back in at sunset this prop gives your boat the kind of balance and control that makes the water feel like home.

Key Features

• Diameter and Pitch: 10.875" Diameter x 11" Pitch
• Rotation: Right-Hand Rotation
• Blade Count: 3-Blade Design for smooth acceleration and dependable thrust
• Material: Patented Mercalloy Aluminum Alloy for strength and flexibility
• Finish: Mercury Phantom Black glossy enamel for a sharp look and corrosion protection
• Hub System: Flo-Torq Reflex Hub Kit (835257K12) included for drivetrain protection and impact absorption
• Design Details: Balanced blade design provides consistent lift and smooth handling at every speed

Engine & Boat Compatibility

This Mercury propeller is engineered to fit a range of small-to-mid-sized outboards, making it a versatile choice for various boating styles.

• Designed for Mercury and Mariner 25–30 HP FourStroke BigFoot/Command Thrust outboards
• Fits 30 HP TwoStroke and 30 HP FourStroke (2005 and earlier) models
• Compatible with 40–60 HP FourStroke outboards
• Excellent for fishing boats, runabouts, and smaller pontoons where balanced performance and reliability matter most

Performance Benefits

From the first turn of the key, the Black Max 3-Blade Aluminum Propeller delivers a clean, confident ride. Its 11-inch pitch provides fast, responsive acceleration and easy planing for smaller boats that need a steady lift out of the water. The prop’s 10.875" diameter offers a great balance between thrust and speed, giving you the power to move with purpose without losing efficiency at cruising throttle.

What really stands out is how it feels underfoot — steady and smooth. The Black Max grips the water with reassuring consistency, whether you’re idling near shore or running wide open across the lake. The Mercalloy aluminum construction adds a level of toughness that forgives those inevitable bumps and scrapes that come with real world boating. And thanks to the Phantom Black finish, corrosion stays at bay even after long days in salt or freshwater.

Why this prop is a smart real-world choice:

• Mercury OEM quality: Designed and tested by Mercury for perfect engine compatibility and proven reliability.
• Reliable and easy to maintain: Durable Mercalloy construction handles impacts and resists corrosion for long-term use.
• Cost-effective vs. stainless: Offers great performance and value at a more affordable price point.
• Versatile fit across multiple setups: Ideal for a variety of small-to-mid outboards and boat types, from fishing boats to pontoons.

FAQ

Q1: Which Mercury engines does the Mercury Black Max 3-Blade Propeller fit?

It fits Mercury and Mariner 25–30 HP FourStroke BigFoot/Command Thrust, 30 HP TwoStroke, 30 HP FourStroke (2005 and earlier), and 40–60 HP FourStroke outboards.

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

This prop is made from Mercury’s patented Mercalloy aluminum alloy, giving it excellent durability and just enough flex to absorb minor impacts. It also comes with the Flo-Torq Reflex Hub System for added drivetrain protection.

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

A 10.875" diameter and 11" pitch are ideal for smaller outboards that need quick acceleration, stable cruising, and strong low-end performance. It’s a great match for fishing boats and light pontoons.

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

Yes. The Phantom Black enamel finish offers corrosion resistance that holds up well in both saltwater and freshwater conditions.

Q5: What hub system does it use?

• It comes equipped with Mercury’s Flo-Torq Reflex Hub Kit (835257K12), which helps absorb shock from impacts and protects the engine’s drivetrain.