Mercury – Black Max 3-Blade Aluminum Propeller | 13" Diameter x 19" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | Phantom Black Finish | 77346A45

Overview

There’s a moment every boater loves the instant your boat lifts onto plane, smooth and sure, with power that feels perfectly matched to your touch. That’s what you get with the Mercury Black Max 3-Blade Aluminum Propeller (Part Number 77346A45). It’s reliable, responsive, and built to perform day after day without demanding attention. You’ll feel it in the quiet confidence of every turn, in the steady pull across open water, and in the easy control when easing back to dock. This isn’t just another prop it’s one you’ll come to trust, season after season.

Key Features

• Diameter & Pitch: 13" diameter x 19" pitch
• Rotation: Right-Hand
• Blade Count: 3-Blade design for balanced performance and clean lift
• Material: Patented Mercalloy aluminum alloy for strength with just the right amount of flex
• Finish: Mercury Phantom Black glossy enamel for superior corrosion resistance
• Hub System: Includes Flo-Torq II Hub Kit 835257K1 to safeguard drivetrain from impact damage
• Design Details: Crafted for smooth acceleration, consistent grip, and low vibration even at higher speeds

Engine & Boat Compatibility

• Designed for Mercury and Mariner 40–60 HP BigFoot/Command Thrust (all years)
• Fits Mercury and Mariner 75–125 HP (1978 and newer) outboards
• Great for runabouts, fishing boats, pontoons, and small cruisers that need balanced speed and dependable control
• Ideal for boaters who want efficient cruising with a touch of top-end performance

Performance Benefits

The Black Max 77346A45 delivers a satisfying mix of punchy acceleration and smooth cruising. The 19-pitch prop gives your boat a confident grip on the water, letting you power through chop without slipping or struggling for balance. You’ll feel that smooth surge onto the plane, the kind that makes throttling up fun again. Once cruising, it stays steady—no vibration, no chatter, just quiet, reliable power.

Built from Mercury’s Mercalloy aluminum, it’s tough enough for everyday use and flexible enough to absorb minor impacts that could ruin stiffer props. The Phantom Black enamel finish keeps corrosion at bay, giving you years of clean, efficient performance in both salt and freshwater. This prop doesn’t just move your boat—it gives it life, with the kind of smooth handling and precise response that makes every outing effortless.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM quality: Designed and tested by Mercury’s own engineers for perfect fit, balance, and reliability, no guesswork, just factory-matched performance.

• Reliable and easy to maintain: Built to handle long days on the water with minimal upkeep, so you can spend more time boating and less time in the shop.

• Cost-effective vs. stainless: Offers smooth, consistent performance without the price tag of stainless-steel props, making it a smart upgrade for everyday boaters.

• Versatile fit across multiple setups: Compatible with a wide range of Mercury outboards and sterndrives, giving you confidence it’ll perform no matter what you run.

FAQ Section

Q1: Which Mercury engines does the Black Max 77346A45 fit?

It’s made for Mercury and Mariner 40–60 HP BigFoot/Command Thrust (all years) and 75–125 HP (1978 and newer) outboards.

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

The Black Max is crafted from Mercury’s Mercalloy aluminum—strong, flexible, and impact-resistant. It also features the Flo-Torq II Hub System for smoother operation and drivetrain protection.

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

A 19-pitch prop like this one is ideal for boaters seeking higher top-end speed with efficient cruising. Check your current prop markings or consult your owner’s manual to verify fit.

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

Absolutely. The Phantom Black enamel finish is corrosion-resistant, maintaining its look and performance in any water condition.

Q5: What hub system does it use?

It includes the Flo-Torq II Hub Kit 835257K1, designed to cushion impacts, reduce vibration, and protect your prop shaft from sudden damage.