Mercury – Black Max 3-Blade Aluminum Propeller | 10.375" Diameter x 9.5" Pitch | Right-Hand Rotation | 3 Blades | Aluminum | Glossy Black Finish | 19636A10

Overview

There’s a certain kind of confidence that comes from knowing your boat will respond exactly how you expect it to—no hesitation, no surprises, just smooth control and dependable pull. The Mercury Black Max 10.375 x 9.5 Aluminum Propeller ( 19636A10) gives you that kind of trust every time you hit the water.

It’s not about flash or bragging rights—it’s about balance, responsiveness, and quiet confidence that lets you focus on the journey, not your equipment. Whether you’re gliding through calm lakes or navigating tight inlets, this prop delivers the reliability that keeps boaters coming back season after season.

Key Features

• Diameter and Pitch: 10.375" diameter x 9.5" pitch
• Rotation: Right-hand
• Blade Count: 3 blades
• Material: Patented Mercalloy aluminum alloy
• Finish: Mercury Phantom Black gloss enamel
• Hub System: Rubber bushing built into the hub to absorb vibration and protect the drivetrain
• Design Details: Durable yet flexible construction that handles light impacts while maintaining smooth, steady thrust

Engine & Boat Compatibility

• Fits Mercury and Mariner 9.9 HP and 15 HP FourStroke BigFoot outboards (1999–2004)
• Works with Mercury and Mariner 20–25 HP TwoStroke Classic outboards (1980–2006)
• Compatible with Mercury 25 HP SeaPro and Marathon outboards
• Ideal for small fishing boats, tenders, dinghies, utility skiffs, and lightweight workboats

Performance Benefits

The Mercury Black Max 19636A10 is designed to make boating feel effortless. When you throttle forward, it delivers immediate bite—a crisp, steady pull that gets your boat moving without strain. The 9.5-pitch setup gives smaller boats a quick lift and better low-speed control, perfect for anglers or casual boaters who want smooth handling and predictable performance.

Once you’re underway, you’ll notice the smoothness—no chatter, no vibration, just quiet, consistent thrust through the water. The rubber hub bushing keeps vibrations to a minimum, protecting your hands and tiller from fatigue on long runs. The Mercalloy aluminum construction is tough enough to handle light impacts while remaining flexible enough to reduce the risk of serious damage.

The Phantom Black glossy enamel finish does more than make it look sharp. It shields the prop from corrosion and wear, helping it withstand exposure to both freshwater and saltwater environments. It’s low-maintenance, built for real-world use, and designed to keep performing long after the first season.

Why This Prop Is a Strong Choice vs. Alternatives

• Mercury OEM Quality: Designed and tested by Mercury engineers for precision fit and dependable performance
• Durable Yet Forgiving: Mercalloy aluminum flexes slightly under stress to help protect the prop and drivetrain
• Smooth and Quiet Ride: Rubber hub bushing reduces vibration for improved comfort and control
• Affordable and Reliable: Delivers strong Mercury performance without the cost of stainless steel
• Versatile Fit: Works across a range of small Mercury and Mariner outboards for fishing, work, or leisure

FAQs

Q1: Which Mercury engines does the Mercury Black Max 19636A10 fit?
It fits Mercury and Mariner FourStroke BigFoot 9.9–15 HP outboards (1999–2004), 20–25 HP TwoStroke Classic outboards (1980–2006), and 25 HP SeaPro and Marathon models.

Q2: What makes this propeller different from other Mercury options?
The 9.5-pitch design provides faster lift and stronger low-speed control, while the Mercalloy aluminum construction adds strength and flexibility for long-term use.

Q3: How do I know if this pitch or size is right for my boat?
If you run a 9.9–25 HP outboard and want quicker acceleration or better handling at slower speeds, this 10.375 x 9.5 prop is a strong match.

Q4: Can this prop be used in both saltwater and freshwater?
Yes. The Phantom Black enamel coating provides corrosion resistance for both environments. Rinsing after use is recommended.

Q5: What hub system does it use?
It features a built-in rubber bushing hub that reduces vibration and helps protect the lower unit.