Mercury – Thunderbolt Propeller | High-Performance Series | High-Polished Stainless Steel | QS5008X

Overview

There’s a moment every boater knows—the quiet breath before you push the throttle forward. You feel the hull settle, the wheel straighten, and the engine waits for your signal. When you’re running a propeller that you trust, that moment isn’t tense. It’s exciting. The Thunderbolt propeller creates that kind of confidence. It grabs the water cleanly, lifts the boat without hesitation, and stays steady even when the wind or the waves try to push back. It’s the sort of part you rely on because it performs the same way every single trip, no matter how far out you go.

Key Features

• Three-blade stainless steel propeller engineered for high-horsepower performance
• High-polished finish designed to reduce drag and maximize durability
• 14.8-inch diameter and 21-inch pitch (manufacturer spec listed as 14.75" x 21")
• Right-hand rotation for compatible Mercury setups
• Large-diameter geometry for powerful lift and improved acceleration
• Designed to work with Quicksilver modular hub systems (see hub selection guidelines)

Engine & Boat Compatibility

• Ideal for Mercury V6 outboards used in high-horsepower applications
• Suitable for vee-bottom sport boats that need strong midrange and top-end performance
• Excellent match for offshore fishing boats that demand reliability in varying water conditions
• Works well on cruisers and performance-focused sterndrive boats
• Compatible with a broad range of Mercury engines that pair with right-hand rotation props

Performance & Practical Benefits

The Thunderbolt QS5008X delivers a performance you can feel immediately. The combination of stainless steel rigidity and refined blade geometry helps the propeller stay tight and responsive, even under heavy load or aggressive acceleration. The 21-pitch design delivers strong midrange thrust and a smooth, efficient climb into plane, making it a favorite for boaters who balance speed with control.

Once you’re running at pace, the prop holds its grip through turns, providing that steady, connected feel at the helm. The blades cut cleanly through rough chop without vibration, and the polished stainless surface helps maintain consistent performance by resisting drag and corrosion. Whether you’re pushing toward offshore grounds or taking a long cruise along the coast, the prop keeps the ride smooth, predictable, and secure.

For boaters who run long distances or spend a lot of time at higher speeds, this propeller often feels like a quiet upgrade to the whole boat. It lightens the steering load, reduces slip, and brings a level of balance that you notice mile after mile.

Why Buy OEM

Choosing an OEM Mercury Marine part means you’re choosing precision. Every Thunderbolt propeller is built with the exact metallurgy, blade geometry, and balancing that Mercury engineered for peak performance. Aftermarket props may look similar, but they rarely match the consistency and fitment accuracy that an engine demands. With OEM, you get durability, reliable handling, and the peace of mind that comes from using the part built for your powertrain. It’s the smart choice if you want something that works right the first time and keeps working season after season.

FAQ

Q1: Which Mercury engines does the QS5008X fit?

It’s designed for Mercury V6 outboards and other applications requiring a right-hand rotation stainless steel prop in this size.

Q2: How is it different from aftermarket props?

OEM balancing, stainless steel quality, and optimized blade geometry deliver smoother handling, stronger lift, and better long-term durability.

Q3: How do I confirm this is the right propeller?

Match the diameter, pitch, and rotation to your existing prop or consult your engine’s manual for approved sizing.

Q4: Can I use this prop in both freshwater and saltwater?

Absolutely. The polished stainless construction resists corrosion in all marine environments.

Q5: Is installation easy?

Yes. With the correct hub kit, installation is straightforward and can be completed with common tools.

• Supersessions
  QS5008H1, QS5008H2, QS5008X, QS5008X, TS1008, TS1008X, TS5008, TS5008X