Mercury – Black Max Plastic Propeller | 7.375" Diameter x 7" Pitch | Right-Hand Rotation | 3 Blades | Plastic | 815083A02

Overview

Sometimes, the best gear is the kind you never have to think about — it just works. The Mercury Black Max 3-Blade Plastic Propeller is one of those dependable tools you’ll come to appreciate every time you start your motor. It’s light, durable, and built to keep small boats running smoothly without a fuss. If you’re running a portable Mercury outboard and want a prop that’s simple, tough, and reliable, this one delivers easy handling and steady thrust that makes boating feel effortless.

Key Features

• Diameter and Pitch: 7.375" Diameter x 7" Pitch

• Rotation: Right-Hand

• Blade Count: 3 Blades

• Material: Durable Plastic for lightweight, trustworthy performance

• Finish: Smooth black surface designed for long-lasting use

• Hub System: Uses shear pin 17-815111 and cotter pin 18-95295 for safe, reliable operation

• Design Details: Lightweight and forgiving design ideal for portable outboards

Engine & Boat Compatibility

• Fits Mercury and Mariner 2.5–3.5hp TwoStroke and FourStroke outboards

• Designed for small, portable setups like tenders, inflatables, and lightweight fishing boats

• Ideal for calm water cruising, shoreline travel, and auxiliary power on larger vessels

• Perfect for boaters who want an easy-to-maintain, dependable prop for light-duty use

Performance Benefits

• Smooth and Predictable Power: You’ll feel this prop’s easy, steady push the moment you move forward. It grabs the water cleanly and delivers consistent thrust, helping your boat glide with minimal effort. Handling stays predictable, so even in tight spaces or shifting current, steering feels comfortable and natural.

• Balanced Acceleration: The 7" pitch design gives your boat smooth lift without overworking the motor. It pushes your boat ahead with clean, steady power, staying responsive without making the motor work too hard.

• Forgiving Durability: Built from tough, flexible plastic, this prop can take on small bumps, sandy bottoms, or debris without cracking. It’s a forgiving choice for newer boaters or those who often operate in shallow areas. Despite its light weight, it stands up well to repeated use.

• Low Maintenance: This is about as easy as boating gear gets. A quick rinse and visual check after a day on the water are all it needs. There’s no polishing or repainting — just dependable performance every time you launch.

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

• Mercury OEM Quality: Built by Mercury for precision fit and trusted reliability on small outboards.

• Reliable and Easy to Maintain: Lightweight plastic design means fewer worries and less upkeep.

• Cost-Effective Choice: Delivers steady, smooth performance without the expense of metal props.

• Forgiving and Resilient: Handles light impacts, shallow water, and debris with confidence.

• Perfect for Portable Power: Ideal for small motors and boaters who value simplicity and long-term dependability.

FAQ

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

It fits Mercury and Mariner 2.5–3.5hp TwoStroke and FourStroke outboards.

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

This version’s lightweight plastic construction makes it tough yet forgiving, designed for smaller, portable outboards that need easy handling and minimal upkeep.

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

If your setup runs a 2.5–3.5 horsepower Mercury outboard and you want smooth, balanced performance with easy maintenance, the 7.375" x 7" pitch is a solid match. It is always a good idea to double-check your owner’s manual or ask your local Mercury dealer to be sure

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

Yes, its durable plastic material resists wear and corrosion, performing well in both environments.

• Q5: What hub system does it use?

It uses a shear pin (part number 17-815111) and a cotter pin (part number 18-95295) for secure, reliable operation that’s simple to maintain or replace when needed.