Mercury – Enertia 3-Blade Stainless Steel Propeller | 15.3" Diameter x 14" Pitch | Right-Hand Rotation | 3-Blade | X7 Stainless Steel | Polished Finish | 8M0151229

Overview

There is nothing quite like the feeling when your boat lifts smoothly onto plane — steady, powerful, and perfectly in sync with your throttle. The Mercury Enertia 3-Blade Stainless Steel Propeller (Part Number 8M0151229) delivers that experience every time you hit the water. It’s fast, responsive, and engineered to make your boat feel lighter and more alive under your hands. This prop isn’t just built for performance — it’s crafted for those who crave the perfect mix of control and excitement, no matter if you’re running wide open or pulling the kids on a tube behind you.

Key Features

• Diameter and Pitch: 15.3" Diameter x 14" Pitch
• Rotation: Right-Hand
• Blade Count: Three-Blade design for lift, speed, and smooth tracking
• Material: Mercury X7 stainless steel alloy — 30% stronger and four times more durable than standard stainless
• Finish: Polished for corrosion resistance and enhanced water flow
• Hub System: Requires Mercury Flo-Torq hub kit (sold separately)
• Design Details: Equipped with Mercury’s Performance Vent System (PVS) for fine-tuned acceleration and hole shot adjustment

Engine & Boat Compatibility

• Compatible with Mercury and Mariner 90–115 HP Command Thrust outboards
• Fits Mercury 135–350 HP TwoStroke and FourStroke outboards (excluding V10 Verado models)
• Works with MerCruiser Alpha One and Bravo One sterndrives
• Ideal for runabouts, pontoons, and midsize to large recreational boats where acceleration and speed matter most

Performance Benefits

The Mercury Enertia 3-Blade Propeller is all about effortless power and precision. When you throttle up, the blades dig in and launch your boat onto plane with clean, assertive lift. You’ll notice how quickly it reacts — there’s no sluggishness, no lag, just instant thrust and a smooth rise. Once you’re running, it delivers that perfect balance of top-end speed and reliable grip, even in rougher conditions.

The X7 stainless steel alloy sets this prop apart from the crowd. It’s tougher and stiffer than standard stainless steel, meaning it won’t flex under load. That translates into consistent pitch and performance run after run, season after season. And with Mercury’s Performance Vent System (PVS), you can adjust how your prop ventilates on takeoff, customizing your hole shot and acceleration based on your boat’s load or your own preferences.

This prop doesn’t just perform — it makes driving more enjoyable. It’s smooth, predictable, and forgiving, letting you focus on the experience instead of the mechanics.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM Quality: Designed, tested, and refined by the same engineers who build Mercury’s leading engines.
• Exceptional Strength: The X7 alloy delivers unmatched resilience and long-term durability.
• Customizable Performance: With PVS tuning, you can fine-tune acceleration for your setup — perfect for versatile boating.
• Reliable Control: Maintains steady handling in turns, towing, and high-speed runs.
• Versatile Fit: Works across a range of boat types and motor setups, making it an easy upgrade for most boaters.

If you are looking for a prop that makes every throttle push smoother, faster, and more controlled, the Enertia is a propeller that truly earns its reputation. It’s built for boaters who know the difference between “good” and “right.”

FAQ

Q1: Which Mercury engines does the Enertia 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 uses Mercury’s proprietary X7 stainless steel alloy, which is stronger and stiffer than traditional stainless. It’s built for exceptional acceleration, lift, and lasting performance.

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

A 14" pitch is ideal for midsize to large boats that need strong acceleration while maintaining excellent speed. Matching it with your engine’s optimal RPM range ensures best results.

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

Yes. The polished X7 stainless steel finish resists corrosion and maintains its shine in both environments.

Q5: What hub system does it use?

It requires a Mercury Flo-Torq hub kit, sold separately. This hub system helps reduce vibration, cushions drivetrain shock, and allows easy installation.