Mercury – Enertia 3-Blade Stainless Steel Propeller | 14" Diameter x 19" Pitch | Left-Hand Rotation | 3-Blade | X7 Stainless Steel | Polished Finish | 8M0151238

Overview

There’s a moment on the water that never gets old — when the throttle goes down, the bow lifts, and the boat surges forward like it’s alive. The Mercury Enertia 3-Blade Stainless Steel Propeller (Part Number 8M0151238) delivers that feeling every single time. Built for boaters who crave power and precision, it’s fast, steady, and responsive — a prop that feels as confident carving through open water as it does towing riders on a summer afternoon. This is the prop that makes your boat feel like it’s doing exactly what you want — effortlessly.

Key Features

• Diameter and Pitch: 14" Diameter x 19" 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

• Finish: Polished for corrosion resistance and smooth water flow

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

• Design Details: Features Mercury’s Performance Vent System (PVS) for customizable hole shot and acceleration control

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, fishing boats, and midsize recreational setups that need quick lift and confident handling

Performance Benefits

The Mercury Enertia 3-Blade Propeller is all about turning power into precision. From the first push of the throttle, you’ll feel the blades dig in and lift your boat onto plane with clean, predictable thrust. The acceleration is sharp and steady — no hesitation, no slip — just smooth, confident power that feels natural in your hands.

Once you’re up to speed, the Enertia shows its balance. It grips the water beautifully, tracking straight and holding tight in turns, even when conditions get choppy. The handling feels refined, letting you make adjustments with ease instead of fighting the wheel.

Much of that comes down to the X7 stainless steel alloy — Mercury’s own formula, engineered to be stronger and stiffer than standard stainless steel. This means the prop won’t flex under load or lose pitch over time, keeping performance consistent season after season. Combine that with Mercury’s Performance Vent System (PVS), and you can fine-tune your acceleration by swapping vent plugs to match your boat’s setup and weight. It’s performance that’s not only powerful but customizable — a prop that grows with your boating style.

Smooth, steady, and reliable — the Enertia doesn’t just move your boat, it transforms the entire feel of the ride.

Why is this prop a strong choice vs. alternatives?

• Mercury OEM Craftsmanship: Designed and tested by Mercury engineers for flawless integration and performance.

• Unmatched Strength: The X7 stainless steel alloy provides 30% more strength and greater fatigue resistance than standard stainless steel.

• Customizable Power: Mercury’s PVS lets you dial in your acceleration and hole shot for your exact conditions.

• Versatile Fit: Performs across a wide range of boat types and power levels, from sporty cruisers to family pontoons.

• Long-Term Reliability: Resistant to corrosion, flex, and wear — built to deliver consistent performance year after year.

If you want a prop that makes your boat feel alive — responsive, fast, and ready for anything — the Mercury Enertia 3-Blade delivers it. It’s the prop that keeps you smiling every time you take the wheel.

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’s X7 stainless steel alloy is 30% stronger and stiffer than traditional stainless, allowing for superior acceleration, lift, and consistency.

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 strong acceleration and balanced top-end speed. Matching your engine’s RPM range ensures best results.

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

Q5: What hub system does it use?
It requires a Mercury Flo-Torq hub kit (sold separately), which cushions drivetrain impact and ensures smooth, reliable operation.