Mercury – Enertia 3-Blade Stainless Steel Propeller | 15" Diameter x 15" Pitch | Left-Hand Rotation | 3-Blade | X7 Stainless Steel | Polished Finish | 8M0151230

Overview

Every boater knows that moment — when you hit the throttle, feel the bow lift, and the boat just comes alive. The Mercury Enertia 3-Blade Stainless Steel Propeller (Part Number 8M0151230) was built for that exact feeling. It’s crisp, fast, and steady — the kind of prop that makes you feel completely connected to your boat. Whether you’re carving smooth turns, chasing speed across open water, or towing riders for an afternoon of fun, the Enertia responds instantly, giving you that thrilling mix of control and power that keeps you out on the water longer.

Key Features

• Diameter and Pitch: 15" Diameter x 15" Pitch

• Rotation: Left-Hand

• Blade Count: Three-Blade design for speed, lift, and smooth tracking

• Material: Mercury X7 stainless steel alloy — 30% stronger and four times more durable than conventional stainless

• Finish: Polished for corrosion resistance and efficient water flow

• Hub System: Requires Mercury Flo-Torq hub kit (sold separately)

• Design Details: Equipped with Mercury’s Performance Vent System (PVS) for customizable 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 seeking stronger acceleration and top-end performance

Performance Benefits

The Mercury Enertia 3-Blade Propeller isn’t just about speed — it’s about how seamlessly it delivers it. The moment you throttle up, you’ll feel the blades bite cleanly into the water, pushing your boat onto plane with authority. The lift feels effortless and balanced, giving you smooth, predictable acceleration and that satisfying sense of control that every boater loves.

Once you’re cruising, the prop’s geometry and X7 alloy construction work together to keep performance consistent and reliable. The X7 stainless steel is Mercury’s proprietary blend — stiffer, stronger, and more resistant to fatigue than traditional stainless. That means your pitch stays true even under high loads, giving you the same sharp response and lift season after season.

Then there’s the Performance Vent System (PVS) — a game-changer for tuning your setup. You can swap vent plugs to adjust how much exhaust flow affects your hole shot, fine-tuning acceleration based on your engine, load, or water conditions. Whether you’re running light and fast or pulling weight, the Enertia adapts beautifully.

From its quick lift out of the hole to its smooth cruising feel and precise handling in turns, this prop just feels right — steady, strong, and alive beneath your fingertips.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM Craftsmanship: Designed and tested by Mercury’s own engineers for the perfect match to their engines.

• Unmatched Strength: The X7 alloy is 30% stronger than standard stainless steel, built to handle demanding loads and high speeds.

• Customizable Performance: Mercury’s PVS system lets you fine-tune your acceleration for your exact setup.

• Versatile Fit: Works across a wide range of boats and power levels — from sporty runabouts to family pontoons.

• Long-Term Value: Resistant to flexing, corrosion, and fatigue for consistent performance season after season.

This isn’t just another propeller — it’s the one you’ll come to trust every time you push away from the dock. Smooth, powerful, and tuned to respond exactly when you need it, the Enertia makes your boat feel like an extension of you.

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. It delivers faster acceleration, higher top speeds, and lasting consistency.

Q3: How do I know if this pitch or size is right for my boat?
A 15" pitch prop is ideal for midsize to large boats that need a strong blend of acceleration and cruising speed. Matching it with your engine’s recommended RPM range ensures optimal performance.

Q4: Can this prop be used in both saltwater and freshwater?
Yes. The polished stainless steel finish protects against corrosion in both environments, maintaining performance and appearance over time.

Q5: What hub system does it use?
It requires a Mercury Flo-Torq hub kit (sold separately), which cushions your drivetrain from shock and makes installation quick and secure.