Mercury – Quicksilver Thunderbolt Propeller | High-Performance Prop Series | High-Polished Stainless Steel | QS5005X

Overview

There’s a certain feeling when a boat comes alive under throttle — when the hull lifts clean, the steering firms up, and everything just feels locked in. That’s what the Quicksilver Thunderbolt propeller delivers. It’s built for boaters who run hard, cover water fast, and expect their setup to respond instantly. Whether you’re pushing offshore early or stretching out a long run home, this prop gives you the confidence that your power is being turned into forward motion, not wasted effort.

Key Features

• High-performance three-blade propeller designed for powerful marine engines

• High-polished Stainless Steel construction for strength and durability

• Fifteen and one-half inch diameter for strong bite and load-carrying ability

• Seventeen inch pitch optimized for speed and mid-range punch

• Precision blade geometry designed to handle high horsepower output

• Large diameter design improves acceleration and top-end stability

• Left hand rotation configuration

• Manufactured to meet 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 choice for cruisers and performance-oriented runabouts

• Frequently used on race boats requiring reliable power transfer

• Hub system selection required based on specific engine application

Performance & Practical Benefits

On the water, the Thunderbolt feels planted and confident. Hole shot is strong and controlled, with the prop gripping cleanly instead of slipping. As speed builds, the ride stays smooth and predictable, even when conditions get choppy. The Stainless Steel blades resist flex under load, which helps maintain consistent performance across the full throttle range. You’ll notice steadier handling, better throttle response, and a sense that the boat is running exactly where it should. Maintenance is simple, too — the polished finish resists corrosion and cleans up easily after a long day in saltwater or freshwater.

Why Buy OEM

Choosing a genuine Mercury Marine part like the Thunderbolt propeller is about trusting proven design. This propeller isn’t just shaped to look aggressive — it’s engineered to convert horsepower into usable performance. Aftermarket props can vary wildly in balance, metallurgy, and consistency. The Thunderbolt has earned its reputation because it delivers repeatable results and holds up under serious use. Over time, that reliability means fewer replacements, less vibration, and better overall drivability. It’s the kind of prop experienced boaters recommend because they’ve already tested the alternatives.

Frequently Asked Questions

Which Mercury engines or systems does the Thunderbolt propeller fit?
This propeller is commonly used on 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 that many aftermarket options struggle to match.

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

Can this be used in both saltwater and freshwater applications?
Yes. The Stainless Steel construction and polished finish make it suitable for both environments with routine care.

Is installation straightforward for most boat owners?
With the correct hub system, installation is typically straightforward. Many owners install it themselves, though professional setup ensures optimal performance.