Mercury – Enertia ECO 3-Blade Stainless Steel Propeller | 16" Diameter x 17" Pitch | Right-Hand Rotation | 3-Blade | X7 Stainless Steel | Polished Finish | 8M0151251

Overview

There’s a moment on the water when everything just feels right — when the throttle eases forward, the boat lifts smoothly, and the engine hums in perfect rhythm. That’s the feeling you’ll get from the Mercury Enertia ECO 3-Blade Stainless Steel Propeller (8M0151251). It’s designed for boaters who love to stretch their range, spend more time cruising, and still enjoy the rush of top-end performance when it’s time to open up. The Enertia ECO isn’t about trading power for efficiency — it’s about getting both. You’ll go farther, use less fuel, and still feel that unmistakable Mercury bite when you accelerate.

Key Features

• Diameter and Pitch: 16" Diameter x 17" Pitch
• Rotation: Right-Hand
• Blade Count: Three-Blade design for balanced performance and lift
• Material: Mercury’s exclusive X7 stainless steel alloy — 30% stronger and four times more durable than standard stainless steel
• Finish: Polished finish for corrosion resistance and smooth, efficient water flow
• Hub System: Requires Mercury Flo-Torq hub kit (sold separately)
• Design Details: Engineered for optimized fuel efficiency at cruising speed and approved for Joystick Piloting applications

Engine & Boat Compatibility

• Fits Mercury and Mariner 90–115 HP Command Thrust outboards
• Compatible with Mercury 135–350 HP TwoStroke and FourStroke outboards (excluding V10 Verado models)
• Works with MerCruiser Alpha One and Bravo One sterndrives
• Ideal for cruisers, runabouts, and pontoons that demand smooth performance, strong midrange power, and exceptional fuel economy

Performance Benefits

The Mercury Enertia ECO 3-Blade Propeller was designed with a single goal in mind — to make every drop of fuel go farther while keeping your boat fast, steady, and fun to drive. From the moment you throttle up, you’ll notice its smooth grip and easy lift. The prop bites cleanly into the water, bringing your boat on plane with less effort and maintaining that efficiency across your cruising range.

Once you’re underway, the Enertia ECO’s real personality shines through. It feels solid underfoot — steady through turns, responsive at the helm, and incredibly quiet in the midrange. That’s where this prop was made to perform. At the speeds most boaters spend their time cruising, the Enertia ECO delivers up to a 10% improvement in fuel efficiency compared to many standard stainless props. It’s smoother, more stable, and more forgiving, even when carrying passengers, gear, or a weekend’s worth of supplies.

The secret behind that performance is Mercury’s X7 stainless steel alloy — a proprietary metal that’s 30% stronger than traditional stainless steel. It resists flex, which keeps your pitch consistent and your performance sharp. That means less wasted motion, smoother acceleration, and steady power delivery across all speeds.

What’s remarkable is that this prop doesn’t just save fuel — it also keeps that familiar Mercury thrill alive. You’ll still feel the rush when you push the throttle forward. It’s efficient, but it’s not dull. It’s powerful, yet refined — the kind of balance that seasoned boaters instantly appreciate.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM Precision: Designed and tested by Mercury’s engineers for superior integration and long-term reliability.
• Fuel-Saving Design: Optimized to deliver outstanding fuel economy at typical cruising speeds without sacrificing acceleration or top-end power.
• Superior Strength: Built with Mercury’s X7 stainless steel alloy for unmatched rigidity and durability under pressure.
• Smooth Handling: Provides clean lift, steady tracking, and predictable turns even in choppy water.
• Long-Term Value: Polished finish resists corrosion, ensuring smooth performance season after season.

If you’re the kind of boater who values both performance and practicality, the Mercury Enertia ECO 3-Blade Propeller strikes that perfect balance. It’s built to go farther, ride smoother, and deliver the kind of reliable performance that keeps you on the water longer — exactly where you want to be.

FAQ

Q1: Which Mercury engines does the Enertia ECO 3-Blade Propeller fit?

It fits Mercury and Mariner 90–115 HP Command Thrust outboards, Mercury 135–350 HP TwoStroke and FourStroke outboards (excluding V10 Verado), and MerCruiser Alpha One and Bravo One sterndrives.

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

The Enertia ECO is engineered for maximum fuel efficiency at cruising speed while maintaining strong acceleration and top speed. It’s built with Mercury’s X7 stainless steel for strength and longevity.

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

A 17" pitch prop is ideal for midsize and larger boats seeking better fuel economy and consistent midrange performance. Matching it with your engine’s RPM range ensures optimal results.

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

Yes. Its polished stainless steel finish provides exceptional corrosion resistance and maintains long-lasting shine in all environments.

Q5: What hub system does it use?

It requires a Mercury Flo-Torq hub kit (sold separately), which cushions drivetrain shock and ensures smooth, quiet shifting and acceleration.