Mercury – Enertia 3-Blade Stainless Steel Propeller | 14.25" Diameter x 18" Pitch | Right-Hand Rotation | 3-Blade | X7 Stainless Steel | Polished Finish | 8M0151237

Overview

There is nothing quite like that feeling you get on the water when the throttle goes down and the boat seems to lift and glide with effortless power. The Mercury Enertia 3-Blade Stainless Steel Propeller (Part Number 8M0151237) delivers exactly that. It’s fast, steady, and remarkably responsive — the kind of prop that turns ordinary acceleration into something you can feel in your chest. Whether you’re carving through open water or pulling a skier behind you, the Enertia feels confident and controlled, letting you enjoy every second on the water without hesitation.

Key Features

• Diameter and Pitch: 14.25" Diameter x 18" Pitch
• Rotation: Right-Hand
• Blade Count: Three-Blade design for top-end speed, lift, and smooth handling
• Material: Mercury X7 stainless steel alloy — 30% stronger and four times more durable than conventional stainless steel
• Finish: Polished finish for corrosion resistance and efficient water flow
• Hub System: Requires Mercury Flo-Torq hub kit (sold separately)
• Design Details: Includes Mercury’s Performance Vent System (PVS) for customizable hole shot and acceleration tuning

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, fishing boats, and midsize to large recreational setups that need sharp acceleration and consistent top-end performance

Performance Benefits

The Mercury Enertia 3-Blade Propeller isn’t just another stainless prop — it’s a balance of strength, responsiveness, and smooth control. The moment you ease into the throttle, it digs in firmly and launches your boat onto plane with precision. There’s no lag, no slip — just clean, powerful thrust that makes your boat feel lighter and more agile.

At cruising speeds, the Enertia maintains a steady, predictable feel. It grips the water with authority, tracking smoothly through turns and holding its pace in choppy conditions. That confidence comes from Mercury’s proprietary X7 stainless steel alloy, which is tougher and stiffer than traditional stainless. It resists flex under heavy load, keeping your pitch consistent and your performance sharp season after season.

Then there’s the Performance Vent System (PVS) — a small detail with a big impact. By adjusting the vent plugs, you can control how your prop handles exhaust flow during takeoff, giving you a fully customizable hole shot. Whether you want faster acceleration or smoother transitions, the Enertia gives you the freedom to fine-tune your setup.

It’s the kind of prop that feels like it’s reading your mind — every throttle response feels natural, smooth, and perfectly timed.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM Precision: Designed, engineered, and tested by Mercury’s own experts for flawless compatibility and reliable performance.
• Exceptional Strength: The X7 stainless steel alloy is 30% stronger than standard stainless, resisting flex and fatigue even under extreme conditions.
• Customizable Acceleration: The PVS system lets you tailor your hole shot and throttle response to your exact preferences.
• Versatile Fit: Performs beautifully across a range of boats and power levels — from sporty runabouts to heavy pontoons.
• Consistent Performance: Stays balanced and efficient even after years of use, giving you dependable control and long-term value.

If you’re a boater who wants power you can feel — that clean, strong lift paired with a smooth, predictable ride — the Enertia is the prop that delivers it. It’s built for those who appreciate precision, performance, and the simple joy of a great run.

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, which is stiffer and more durable than standard stainless. This gives it superior acceleration, lift, and long-term consistency.

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

An 18" pitch prop works best for midsize to large boats that need quick acceleration with strong top-end speed. Matching your prop to your engine’s RPM range ensures ideal performance.

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

Yes. Its polished stainless steel finish resists corrosion in both environments, maintaining both strength and appearance over time.

Q5: What hub system does it use?

It requires a Mercury Flo-Torq hub kit (sold separately), which cushions drivetrain shock and ensures smooth, secure engagement during shifts and acceleration.