Mercury – Quicksilver Thunderbolt Propeller | High-Performance Prop Series | High-Polished Stainless Steel | QS5007X

Overview

When you lean into the throttle and the boat responds without hesitation, you know your setup is right. The Quicksilver Thunderbolt propeller is built for those moments — when power matters and control can’t be an afterthought. It’s a prop you trust to stay composed at speed, bite clean in rough water, and carry the load without feeling strained. From long offshore runs to wide-open sprints back to the dock, it delivers that locked-in feeling seasoned boaters look for.

Key Features

• High-performance three-blade propeller designed for high-horsepower applications

• High-polished Stainless Steel construction for strength and durability

• Fifteen and one-quarter inch diameter for strong grip and lift

• Nineteen inch pitch tuned for higher top-end performance

• Precision blade geometry built to handle heavy torque loads

• Large diameter design supports a wide range of hull styles

• Left hand rotation configuration

• Manufactured to Mercury Marine performance standards

Engine & Boat Compatibility

• Ideal for high-horsepower V-six outboard engines

• Commonly used on offshore fishing boats and center console hulls

• Well suited for sterndrive vee-bottom sport boats

• Proven option for cruisers that need both speed and control

• Popular with performance and race-oriented boats

• Requires the correct hub system based on engine application

Performance & Practical Benefits

On the water, the Thunderbolt QS5007X feels confident and planted. Acceleration is firm and predictable, with the prop holding water instead of slipping when the load comes on. As speed builds, handling stays smooth and steady, helping the boat track cleanly even when conditions aren’t perfect. The Stainless Steel blades resist flex, which keeps performance consistent across the full throttle range. You’ll feel better throttle response, improved mid-range pull, and a more composed top-end. The polished finish also makes cleanup easy and resists corrosion, whether you boat in saltwater or freshwater.

Why Buy OEM

Choosing a genuine Mercury Marine part means you’re relying on engineering that’s been tested well beyond the average weekend run. The Thunderbolt propeller has earned its reputation by delivering repeatable, real-world performance on demanding boats. Aftermarket props can vary in balance, materials, and consistency, which often shows up as vibration or uneven handling. This prop is built to perform the same way every time you bolt it on. Over the long haul, that reliability saves time, frustration, and unnecessary replacements. It’s a smart choice boater to boater.

Frequently Asked Questions

Which Mercury engines or systems does the Thunderbolt propeller fit?
This propeller is commonly used with high-horsepower Mercury outboards and compatible sterndrive systems when paired with the correct hub.

What makes this propeller different from aftermarket alternatives?
Its Stainless Steel construction, precise blade geometry, and OEM quality control provide consistent performance and durability under heavy loads.

How do I know if this is the correct propeller for my setup?
Confirm your engine horsepower, rotation direction, desired performance goals, and select the correct diameter, pitch, and hub combination.

Can this be used in both saltwater and freshwater applications?
Yes. The Stainless Steel construction and polished finish perform well in both environments with routine care.

Is installation straightforward for most boat owners?
With the proper hub system, installation is typically straightforward. Professional setup can help fine-tune performance.