Mercury – Black Max 3-Blade Aluminum Propeller | 10.25" Diameter x 14" Pitch | Right-Hand Rotation | 3 Blades | Aluminum | Glossy Phantom Black Finish |73138A45

Overview

There’s a certain kind of peace that comes from knowing your boat will respond exactly how you expect. The Mercury Black Max 3-Blade Aluminum Propeller delivers that confidence every time you drop it into gear. It’s not flashy or overcomplicated—it’s simply built to perform, season after season. You’ll feel it in the smooth lift, the steady pull, and the way it handles the water without hesitation. Early start or rough afternoon, it doesn’t flinch. The boat stays steady, the ride feels right, and you just keep moving like it’s second nature.

Key Features

• Diameter and Pitch: 10.25" Diameter x 14" Pitch

• Rotation: Right-Hand

• Blade Count: 3 Blades

• Material: Patented Mercalloy Aluminum Alloy for strength and impact resistance

• Finish: Glossy Phantom Black Enamel that resists corrosion and keeps its shine

• Hub System: Flo-Torq Reflex Hub Kit 835257K12 protects your drivetrain from vibration and minor impacts

• Design Details: Built for crisp acceleration, smooth cruising, and dependable handling in changing conditions

Engine & Boat Compatibility

• Fits Mercury and Mariner 25–30hp FourStroke BigFoot/Command Thrust outboards

• Compatible with 30hp TwoStroke and 30hp FourStroke (2005 and earlier) engines

• Works with 40–60hp FourStroke models

• Ideal for pontoons, fishing boats, light runabouts, and small utility boats that need steady lift, clean handling, and reliable thrust in all kinds of water

Performance Benefits

The first thing you’ll notice is how easily this prop grips the water. It bites cleanly during takeoff, lifting your boat onto plane with confidence and minimal effort. Acceleration feels responsive and smooth—you’ll feel the power without the drag or chatter that cheaper props often bring. Once you’re up to cruising speed, it stays quiet and balanced, gliding through turns and chop with an easy, predictable rhythm.

Mercury’s Mercalloy aluminum alloy gives the prop the best of both worlds—strong enough to handle rough use, yet flexible enough to absorb small bumps or debris strikes without lasting damage. The Flo-Torq Reflex Hub Kit acts as a cushion for your motor, softening vibration and protecting critical drivetrain components. It’s a small detail that makes a big difference on longer runs or in unpredictable conditions.

Maintenance is effortless. A quick rinse after each trip keeps it clean and ready for the next outing. The Phantom Black enamel finish doesn’t just look sleek—it shields against corrosion, standing up to both salt and freshwater with ease. Over time, it holds its deep gloss and performance just as reliably as day one.

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

• Mercury OEM Quality: Precision-engineered by Mercury for an exact fit and lasting reliability.

• Reliable and Easy to Maintain: Simple, low-maintenance design built to handle years of use.

• Cost-Effective Choice:You get solid performance and lasting quality without paying stainless-steel prices.

• Versatile Fit: Works across multiple small to mid-size outboards, perfect for various boat types.

• Trusted by Boaters: Known for its quiet balance, strong lift, and smooth, consistent ride in any condition.

FAQ

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

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

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

This model is the benchmark for all-around performance. Its Mercalloy construction provides a great balance of strength and flexibility, while the Flo-Torq Reflex Hub Kit adds impact protection and smoother operation.

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

If you’re running a 25–60 horsepower Mercury outboard and want crisp acceleration with steady cruising power, the 10.25" x 14" pitch setup is an excellent choice. Always confirm compatibility with your manual or dealer.

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

Yes. The Phantom Black enamel finish keeps corrosion away, maintaining performance and shine in both environments.

Q5: What hub system does it use?

It includes the Flo-Torq Reflex Hub Kit 835257K12, which cushions the drivetrain, absorbs vibration, and guards against minor impact damage.