Mercury – SpitFire 4-Blade Aluminum Propeller | 10.3" Diameter x 13" Pitch | Right-Hand Rotation | Four Blades | Aluminum | Satin Finish | 8M8026630

Overview

There's a real difference between a prop that simply moves your boat and one that brings it to life. The Mercury SpitFire 4-Blade Aluminum Propeller falls squarely in the latter category. Designed for smaller outboards but built with the spirit of performance, it delivers crisp acceleration, solid grip, and the kind of control that makes every outing feel effortless. From an early morning launch to an afternoon cruise through rolling chop, the SpitFire 4-Blade prop keeps your boat balanced, quick to respond, and confident no matter what the water throws your way.

Key Features

• Diameter and Pitch: 10.3" Diameter x 13" Pitch
• Rotation: Right-Hand Rotation
• Blade Count: Four Blades
• Material: Patented Mercalloy Aluminum Alloy
• Finish: Satin Aluminum Finish
• Hub System: Flo-Torq Reflex Hub Kit (835257K12) included for drivetrain protection
• Design Details: Aggressive four-blade geometry that delivers lift, sharper handling, and 25% faster acceleration compared to typical three-blade props

Engine & Boat Compatibility

• Fits Mercury and Mariner 25–30 HP FourStroke BigFoot/Command Thrust outboards
• Compatible with Mercury 30 HP TwoStroke and FourStroke outboards (2005 and newer)
• Works with Mercury 40 HP outboards
• Ideal for light runabouts, compact pontoons, and small fishing boats
• Performs well in both freshwater and light saltwater conditions

Performance Benefits

The SpitFire 4-Blade Aluminum Propeller changes what small-boat performance feels like. Its design grips the water tight, pulling your boat onto plane faster — as much as 25% quicker than most three-blade setups. That immediate lift translates to smoother acceleration and more control at every throttle position. Whether you’re carrying gear, passengers, or just cruising solo, this prop keeps your power consistent and predictable.

Once you’re up to speed, it’s all about balance and stability. The four-blade geometry holds its line through turns and waves, giving you the confidence to lean into curves without losing bite. At cruising speeds, vibration is minimal, and your ride stays calm and steady. You’ll feel the difference in how easily your boat tracks straight and how responsive it feels when maneuvering in tight spaces or docking.

Durability is built into its DNA. Mercury’s Mercalloy aluminum combines the lightweight agility of aluminum with the toughness to withstand real-world use. It resists corrosion, shrugs off small impacts, and maintains performance season after season. The included Flo-Torq Reflex Hub Kit adds a protective buffer for your drivetrain, absorbing shock from underwater bumps and reducing wear. It’s the kind of engineering that gives you peace of mind, knowing your setup can handle the unexpected.

Why This Prop Is a Strong Choice vs. Alternatives

• Faster Takeoff: Up to 25% quicker acceleration than most three-blade designs.
• Superior Handling: Four blades offer tighter turns and steadier cruising.
• Durable and Forgiving: Mercalloy aluminum resists corrosion and minor impact damage.
• Efficient Power Transfer: Balanced for speed, lift, and smooth operation.
• Drivetrain Protection: Flo-Torq Reflex Hub absorbs shock from impacts.

FAQ Section

Q1: Which Mercury engines does the SpitFire 4-Blade Propeller fit?

It’s made for Mercury and Mariner 25–30 HP FourStroke BigFoot/Command Thrust outboards, 30 HP TwoStroke and FourStroke models (2005 and newer), and 40 HP outboards.

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

The SpitFire combines the control of a four-blade prop with the speed and efficiency of a three-blade. It delivers quicker acceleration, stronger lift, and smoother performance across the power range.

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

If your boat is a small runabout, compact pontoon, or fishing model powered by a Mercury outboard between 25 and 40 HP, the 10.3" x 13" pitch offers a great blend of acceleration and speed.

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

Yes. The corrosion-resistant Mercalloy aluminum performs well in both, though rinsing after saltwater use is always recommended to extend its life.

Q5: What hub system does it use?

It comes equipped with Mercury’s Flo-Torq Reflex Hub Kit, designed to absorb shock from underwater impacts and protect your drivetrain for long-term reliability.