Mercury – Thunderbolt Propeller | High-Performance Series | High-Polished Stainless Steel | QS5004X

Overview

There’s a certain calm that settles in when you know the propeller beneath you is built to handle the kind of water you love running. Whether you’re pushing out toward an offshore reef or cruising back toward the slip with a day’s worth of stories, a prop like the Thunderbolt gives you that steady reassurance. It’s the feeling of knowing your boat will respond every time—clean, predictable, and strong. When the water gets a little rough or the wind shifts, you can trust this propeller to keep everything moving the way it should.

Key Features

• Three-blade stainless steel propeller engineered for high horsepower performance
• High-polished stainless finish for durability and smooth hydrodynamics
• Large 15.5-inch diameter paired with a 17-inch pitch
• Right-hand rotation design compatible with a wide range of Mercury setups
• Heavy-duty blade geometry created for fast acceleration and tight handling
• Works with the correct Quicksilver hub system (refer to hub selection chart)

Engine & Boat Compatibility

• Ideal for Mercury V6 outboard engines
• Suitable for offshore fishing boats requiring strong bite and reliable lift
• Performs exceptionally well on vee-bottom sport boats
• A strong match for cruisers and high-speed recreational boats
• Designed for boaters who expect consistent thrust across changing conditions

Performance & Practical Benefits

Once you throttle up with the QS5004X, you’ll immediately feel its grip in the water. The propeller’s diameter and pitch combination let the boat rise cleanly onto plane, reducing that sluggish drag you sometimes feel with lesser props. It holds the water with a tight, confident bite that keeps the hull steady as you roll through turns or trim up to find your best running angle.

The refined stainless blades resist flexing under heavy thrust, so the boat accelerates smoothly and maintains a steady pace even when you push it into long offshore runs. That smoothness matters—not just for performance, but for how relaxed the ride feels. At cruising speeds, the Thunderbolt helps the boat stay level and responsive, translating engine power into forward movement with impressive efficiency.

Stainless construction also means you spend less time worrying about corrosion or long-term wear. It’s built for the harshest marine environments, from saltwater mornings to muddy river bottom surprises, without losing its shape or performance.

Why Buy OEM

Genuine Mercury Marine parts are engineered for people who rely on their boats every weekend. The Thunderbolt propeller isn’t an imitation—it’s built, tested, and proven by the same team that designs Mercury’s engines. Aftermarket props might look similar, but they rarely match the precision, consistency, and long-term stability that an OEM part provides. With the QS5004X, you’re choosing a propeller that fits right the first time, performs the way Mercury intended, and lasts season after season.

FAQ

Q1: Which engines does this propeller fit?

It’s designed for Mercury V6 outboards and many high-horsepower sterndrive applications.

Q2: What sets it apart from aftermarket propellers?

Its stainless construction, refined blade geometry, and Mercury-engineered performance offer more reliable thrust and better long-term endurance.

Q3: How do I know this pitch and diameter are correct for my boat?

Match your existing prop specs or consult your owner’s manual or dealer for confirmation.

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

Yes, the stainless steel design performs well in either environment.

Q5: Is installation straightforward?

Yes—most boaters can install it with basic tools using the correct hub kit.

• Supersessions
  QS5004H1, QS5004H2, QS5004X, QS5004X, TS1004, TS1004X, TS5004, TS5004X