Mercury – Enertia ECO 3-Blade Stainless Steel Propeller | 16" Diameter x 20" Pitch | Left-Hand Rotation | 3 Blades | X7 Stainless Steel | Polished Finish | 8M0151256

Overview

When you spend long days on the water, every drop of fuel and every bit of smooth power matters. The Mercury Enertia ECO 3-Blade Stainless Steel Propeller (Part Number 8M0151256) was built for boaters who want to go farther, faster, and with less fuel burn. It’s not just about getting from point A to point B — it’s about the quiet confidence of knowing your prop is working as efficiently as you are. With its refined balance and precision grip, you’ll feel the difference from the moment you throttle up to cruising speed.

Key Features

• Diameter and Pitch: 16" Diameter x 20" Pitch

• Rotation: Left-Hand

• Blade Count: 3-Blade Design

• Material: Mercury X7 Stainless Steel Alloy (30% stronger than standard stainless)

• Finish: Polished Stainless Steel

• Hub System: Requires Mercury Hub Kit (sold separately)

• Design Details: Engineered for fuel-efficient cruising without losing acceleration or top-end speed

Engine & Boat Compatibility

• Designed for Mercury and Mariner 90–115 HP Command Thrust outboards

• Fits Mercury 135–350 HP TwoStroke and FourStroke outboards (excluding V10 Verado models)

• Compatible with MerCruiser Alpha One and Bravo One sterndrives

• Ideal for runabouts, fishing boats, and pontoons that spend most of their time cruising

Performance Benefits

The Enertia ECO feels different the moment you push the throttle. It locks into the water the water with confidence, launching your boat onto plane with clean, steady power. Once you settle into cruise, that’s when the prop truly shines — smooth, quiet, and noticeably more efficient. You’ll find yourself staying out longer on the same tank, with less strain on your engine and wallet. The stainless blades hold firm even in rough chop, keeping your ride balanced and responsive. Whether you’re trimming for speed or holding a steady course on a calm lake, this prop offers a perfect mix of bite, lift, and control.

Mercury’s exclusive X7 alloy isn’t just strong — it’s built for real-world durability. It resists corrosion, flex, and fatigue in both saltwater and freshwater environments, giving you seasons of dependable use with minimal maintenance. It’s the kind of reliability that lets you focus on your next adventure, not your next repair.

Why is this prop a strong choice vs. alternatives?

If you are looking for a propeller that delivers range, strength, and smoothness, this one’s the real deal. The Mercury Enertia ECO isn’t a one-size-fits-all solution — it’s a smart upgrade for boaters who understand performance. Unlike generic stainless props, this design was built from the ground up for fuel efficiency in the RPM range most of us use every day.

You’ll get Mercury’s factory-engineered quality, tested and proven across countless hours on the water. It’s versatile enough to fit multiple engine types, easy to maintain, and offers incredible long-term value compared to other stainless options. When you invest in a Mercury propeller, you’re not just buying performance — you’re buying trust built on decades of marine engineering experience.

FAQ

Q1: Which Mercury engines does the Enertia ECO fit?

It’s compatible with Mercury and Mariner 90–115 HP Command Thrust outboards, 135–350 HP TwoStroke and FourStroke outboards (except V10 Verado), and MerCruiser Alpha One and Bravo One sterndrives.

Q2: What makes this propeller different from other Mercury options?

The Enertia ECO is engineered to boost fuel economy at cruising speeds while maintaining strong acceleration and top-end performance. Its X7 stainless steel alloy gives it exceptional strength and longevity.

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

A 20-pitch prop works well for setups that balance speed and efficiency. If you typically cruise at mid-range RPMs and want better fuel mileage without losing speed, this prop fits the bill.

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

Yes, it performs exceptionally in both environments. The X7 stainless alloy offers excellent corrosion resistance for long-lasting use.

Q5: What hub system does it use?

It uses a Mercury hub kit, available separately, ensuring a perfect fit and smooth engagement for compatible engines.