Mercury – Enertia 3-Blade Stainless Steel Propeller | 14" Diameter x 19" Pitch | Right-Hand Rotation | 3-Blade | X7 Stainless Steel | Polished Finish | 8M0151239

Overview

You know that sweet spot when the throttle meets the water — that surge forward that feels perfectly controlled and effortlessly smooth? The Mercury Enertia 3-Blade Stainless Steel Propeller (Part Number 8M0151239) gives you that sensation every time you hit the throttle. It’s built for boaters who crave connection with their craft — that feeling when your boat responds instantly, lifts cleanly, and tracks true no matter the conditions. The Enertia isn’t just about moving fast — it’s about feeling steady, confident, and completely in sync with the water beneath you.

Key Features

• Diameter and Pitch: 14" Diameter x 19" Pitch
• Rotation: Right-Hand
• Blade Count: Three-Blade design for speed, lift, and stability
• Material: Mercury X7 stainless steel alloy — 30% stronger and four times more durable than traditional stainless steel
• Finish: Polished for sleek performance and corrosion resistance
• Hub System: Requires Mercury Flo-Torq hub kit (sold separately)
• Design Details: Features Mercury’s Performance Vent System (PVS) for adjustable acceleration and hole shot tuning

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
• Perfect for runabouts, pontoons, and midsize to large boats that demand quick lift, smooth control, and consistent top-end performance

Performance Benefits

The Mercury Enertia 3-Blade Propeller transforms throttle response into pure, confident motion. The moment you push forward, you’ll feel the prop bite into the water with a solid, predictable grip that launches your boat onto plane faster than you expect. Acceleration is quick and smooth, the kind that makes your engine feel more alive — efficient, powerful, and responsive.

Once cruising, the Enertia settles into a rhythm of balance and precision. It holds speed in turns, cuts through chop without losing composure, and makes every correction at the helm feel natural. This refined performance comes from Mercury’s exclusive X7 stainless steel — a proprietary alloy engineered to be stronger and stiffer than standard stainless steel. That extra strength means less flex under stress, ensuring that pitch and balance remain consistent run after run.

Then there’s the Performance Vent System (PVS), Mercury’s adjustable tuning feature that lets you control how your prop handles acceleration. By swapping vent plugs, you can fine-tune your hole shot for your boat’s weight and water conditions. It’s an easy way to get that perfect launch every time — whether you’re running light and fast or carrying a full load of passengers and gear.

The Enertia feels as though it anticipates your next move — steady when you need confidence, and aggressive when you want excitement.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM Quality: Designed and tested by Mercury engineers for perfect compatibility and real-world reliability.
• Superior Strength: X7 stainless steel alloy is 30% stronger than conventional stainless, resisting flex and fatigue under pressure.
• Customizable Acceleration: Mercury’s PVS allows you to tailor hole shot and response to match your setup.
• Versatile Performance: Performs across a wide range of boat styles and power levels, from sporty cruisers to heavy pontoons.
• Long-Term Value: Corrosion-resistant, durable, and built for seasons of consistent, confident performance.

If you want a propeller that makes your boat feel alive — quick to lift, smooth to steer, and steady through every turn — the Mercury Enertia 3-Blade is the one you’ll want turning beneath you. It’s the prop that keeps performance predictable and the ride unforgettable.

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 exclusive X7 stainless steel alloy, making it stronger, stiffer, and more precise than traditional stainless props for better lift and acceleration.

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

A 19" pitch prop is ideal for midsize to large boats that need quick lift and solid top-end performance. Check your engine’s RPM range to confirm the best fit.

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

Yes. Its polished stainless steel finish protects against corrosion in both environments, ensuring long-term durability and shine.

Q5: What hub system does it use?

It requires a Mercury Flo-Torq hub kit (sold separately), designed to absorb drivetrain shock and provide smooth, reliable shifting and acceleration.