Mercury – Enertia 3-Blade Stainless Steel Propeller | 14.5" Diameter x 17" Pitch | Left-Hand Rotation | 3-Blade | X7 Stainless Steel | Polished Finish | 8M0151234

Overview

There’s something about the way a great propeller feels — that effortless lift when your boat glides onto plane, the clean response when you hit the throttle, and the steady pull through a hard turn. The Mercury Enertia 3-Blade Stainless Steel Propeller (Part Number 8M0151234) delivers that kind of confidence every time you’re on the water. It is quick, smooth, and precise — the kind of prop that makes your boat feel like an extension of you. Whether you’re chasing speed, towing riders, or just enjoying a calm evening cruise, the Enertia is all about performance that feels natural and exciting.

Key Features

• Diameter and Pitch: 14.5" Diameter x 17" Pitch
• Rotation: Left-Hand
• Blade Count: Three-Blade design for acceleration, lift, and stability
• Material: Mercury X7 stainless steel alloy — 30% stronger and four times more durable than conventional stainless steel
• Finish: Polished for sleek appearance and corrosion resistance
• Hub System: Requires Mercury Flo-Torq hub kit (sold separately)
• Design Details: Equipped with Mercury’s Performance Vent System (PVS) for adjustable hole shot and acceleration 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
• Ideal for runabouts, pontoons, and midsize to large recreational boats that prioritize fast lift, control, and cruising stability

Performance Benefits

The Mercury Enertia 3-Blade Propeller delivers the kind of on-water performance that feels instinctive — it’s quick to respond, perfectly balanced, and built for versatility. When you push the throttle, the prop grips the water instantly, launching your boat with smooth, decisive lift. The acceleration feels powerful yet controlled, giving you a clean rise onto plane without overworking your engine.

Once you’re up and running, the Enertia holds steady. Turns feel predictable and smooth, even at high speeds or through chop. It’s that balance between agility and stability that makes it such a trusted performer. The prop’s X7 stainless steel construction is a big part of what makes this possible. Mercury’s proprietary alloy is tougher than traditional stainless, meaning it resists flex and fatigue — holding its exact pitch even under heavy loads or aggressive throttle use.

Then there’s the Performance Vent System (PVS), which lets you fine-tune how your prop handles acceleration. By swapping vent plugs, you can adjust the exhaust flow to match your boat’s setup and water conditions. It’s a small detail that gives you total control — whether you’re loaded down with gear or running light and fast.

From its steady grip to its refined handling, the Enertia doesn’t just move your boat — it enhances the whole experience of driving it.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM Craftsmanship: Designed and tested by Mercury’s own engineers for seamless performance and fit.
• Superior Strength: The X7 alloy is 30% stronger than conventional stainless, resisting flex and corrosion season after season.
• Adjustable Performance: Mercury’s PVS technology lets you customize your acceleration for your boat and load.
• Versatile Fit: Works beautifully across a wide range of boat types, from sporty runabouts to steady pontoons.
• Consistent Performance: Maintains its pitch integrity and balance under stress, delivering reliable handling every time.

If you’re looking for a prop that rewards precision and gives your boat a confident, responsive feel on the water, the Mercury Enertia 3-Blade is the kind of prop you’ll stick with for seasons to come.

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 stronger and more rigid than standard stainless. It delivers faster acceleration, improved lift, and smoother performance across all speeds.

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

A 17" pitch prop works well for mid- to large-sized boats that need a balance of quick acceleration and strong cruising speed. Confirm your engine’s RPM range for the best match.

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

Yes. The polished stainless steel finish protects against corrosion in both environments, ensuring long-lasting performance and appearance.

Q5: What hub system does it use?

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