Mercury – SpitFire Pontoon 4-Blade Aluminum Propeller | 13.8” Diameter x 13” Pitch | Right-Hand Rotation | 4 Blades | Aluminum | Polished Finish | 8M8026570

Overview

There’s nothing quite like easing the throttle forward and feeling your pontoon rise just right — smooth, steady, and perfectly balanced on the water. The Mercury SpitFire Pontoon Propeller (Part Number 8M8026570) brings that feeling every time. It’s a prop built by people who understand what weekend runs, family rides, and lazy drifts should feel like. You get the confident grip of a four-blade design with the speed you’d expect from a three-blade, all fine-tuned for the kind of lift and control pontoons need most. When you push forward, this prop responds instantly — steady, predictable, and effortlessly strong.

Key Features

• Diameter and Pitch: 13.8” Diameter x 13” Pitch
• Rotation: Right-Hand Rotation
• Blade Count: Four-blade design for superior grip and lift
• Material: Mercury’s patented Mercalloy aluminum alloy for strength and impact resistance
• Finish: Polished aluminum for durability and corrosion protection
• Hub System: Includes Flo-Torq II Hub Kit (835257K1) for drivetrain protection
• Design Details: Aggressive blade geometry designed for faster acceleration and improved handling

Engine & Boat Compatibility

• Designed for Mercury and Mariner 40–60 HP FourStroke BigFoot/Command Thrust outboards
• Compatible with Mercury 75–125 HP TwoStroke and FourStroke outboards (1978 and newer)
• Ideal for pontoon boats, providing lift and control for multi-passenger setups
• Also suitable for small leisure or fishing boats using the same compatible outboards
• Works with Mercury’s Flo-Torq II hub system for easy installation and protection

Performance Benefits

The SpitFire Pontoon isn’t about raw speed alone — it’s about smooth, confident performance from launch to cruise. When you hit the throttle, it hooks into the water with authority, giving you 16–25% faster acceleration than comparable three-blade props. That extra grip means your boat gets on plane faster, and stays there with ease.

At cruising speed, you’ll feel the difference in how it holds steady, even when the wind picks up or the lake gets choppy. The prop’s aggressive four-blade geometry keeps your ride smooth and predictable, so you can focus on the water, not the wheel. And thanks to Mercury’s Mercalloy aluminum, it’s strong enough to handle small bumps and debris without giving up its shape or performance. Maintenance is minimal, durability is proven, and the result is a prop that performs season after season with quiet confidence.

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

If you want real-world dependability without the stainless-steel price tag, this Mercury propeller hits the sweet spot. It’s crafted with the same precision and testing that Mercury is known for, delivering consistent performance and an easy fit across a range of engines. The SpitFire Pontoon gives you the best of both worlds — durability and performance — at a cost that makes sense for everyday boating. It’s the kind of prop you can trust whether you’re cruising with family or towing a tube on a sunny afternoon. Reliable, forgiving, and built for boaters who actually use their boats, not just polish them on the trailer.

FAQ

Q1: Which Mercury engines does the SpitFire Pontoon Propeller fit?

It fits Mercury and Mariner 40–60 HP FourStroke BigFoot/Command Thrust outboards and 75–125 HP TwoStroke and FourStroke outboards built from 1978 onward.

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

The SpitFire Pontoon uses a specialized four-blade design that improves lift and control while maintaining impressive top speed. It delivers the grip you’d expect on a heavier pontoon without sacrificing responsiveness.

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

If your engine falls within the 40–125 HP range and you’re running a pontoon or similar setup, the 13.8” x 13” pitch is a balanced, versatile fit. For exact confirmation, check your engine manual or consult a Mercury dealer.

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

Yes. The polished Mercalloy aluminum resists corrosion and performs well in both environments, offering lasting reliability wherever you boat.

Q5: What hub system does it use?

It includes the Flo-Torq II Hub Kit (835257K1), designed to absorb minor impact shock and protect the engine drivetrain for longer service life.