Mercury – SpitFire 4-Blade Aluminum Propeller | 12.8" Diameter x 17" Pitch | Right-Hand Rotation | Four Blades | Aluminum | Satin Finish | 8M8026590

Overview

There is a special satisfaction that comes when your boat leaps onto plane without hesitation, when every bit of power translates into smooth, clean thrust. The Mercury SpitFire 4-Blade Aluminum Propeller was designed for those moments. It is not just a piece of hardware — it is a difference you feel every time you throttle up. From quick hole shots to effortless cruising, this prop delivers balance, grip, and speed that make every ride more enjoyable. Whether you’re fishing at dawn or heading home across choppy afternoon water, the SpitFire stays steady, predictable, and ready to perform.

Key Features

• Diameter and Pitch: 12.8" Diameter x 17" Pitch
• Rotation: Right-Hand Rotation
• Blade Count: Four Blades
• Material: Patented Mercalloy Aluminum Alloy
• Finish: Satin Aluminum Finish
• Hub System: Includes Flo-Torq II Hub Kit (835257K1) for shock protection and easy installation
• Design Details: Aggressive four-blade geometry for faster acceleration, better handling, and high-end performance

Engine & Boat Compatibility

• It is designed for Mercury and Mariner 40–60 HP FourStroke BigFoot/Command Thrust outboards
• Also fits Mercury 75–125 HP TwoStroke and FourStroke outboards (1978 and newer)
• Ideal for runabouts, fishing boats, and lightweight pontoons
• Suitable for freshwater and light saltwater environments

Performance Benefits

The SpitFire 4-Blade Aluminum Propeller proves that performance isn’t limited to stainless steel. This prop grips the water firmly, giving you 16–25% faster acceleration compared to similar three-blade designs. The difference shows the moment you hit the throttle — no slip, no hesitation, just clean power that gets you on plane quicker.

At speed, the SpitFire’s four blades hold tight in turns and chop, giving your boat a steady, confident feel. You’ll notice smoother handling and less vibration, especially when cruising at midrange speeds. It a prop that responds instantly, so when you need a burst of acceleration or a sharp turn near the dock, it is right there with you.

Mercury’s proprietary Mercalloy aluminum alloy adds real-world toughness without weighing you down. It is durable enough to resist corrosion, flexible enough to absorb minor impacts, and forgiving when you find the occasional shallow spot. This balance of strength and resilience keeps you running smoothly all season — no constant polishing, no excessive maintenance.

Why This Prop Is a Strong Choice vs. Alternatives

• Fast, Smooth Acceleration: Up to 25% quicker hole shot compared to standard three-blade props.
• Exceptional Handling: Four-blade balance gives tighter turns and steadier control.
• Durable Yet Forgiving: Mercalloy aluminum resists corrosion and minor impact damage.
• Optimized Efficiency: Balanced design delivers lift, top-end speed, and reliable cruising.
• Hub Protection: Flo-Torq II Hub Kit cushions the drivetrain from underwater impacts.

FAQ Section

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

It’s compatible with Mercury and Mariner 40–60 HP FourStroke BigFoot/Command Thrust outboards, as well as 75–125 HP TwoStroke and FourStroke engines built from 1978 and newer.

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

Unlike many aluminum props, the SpitFire combines four-blade control with the speed of a three-blade design. It offers superior grip, lift, and smoother handling without losing top-end performance.

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

If you’re running a lighter fishing boat, runabout, or pontoon powered by a Mercury engine in the 40–125 HP range and want faster acceleration with more control, the 12.8" x 17" pitch is a great match.

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

Yes. The Mercalloy aluminum alloy resists corrosion and performs reliably in both, though rinsing after saltwater use is recommended.

Q5: What hub system does it use?

The SpitFire 4-Blade Propeller uses Mercury’s Flo-Torq II Hub Kit, which absorbs shock from minor impacts and makes prop changes fast and simple.