Mercury – Enertia ECO 3-Blade Stainless Steel Propeller | 16" Diameter x 21" Pitch | Right-Hand Rotation | 3-Blade | Stainless Steel | 8M0151259

Overview

You know that feeling when your boat hits its stride smooth, efficient, and perfectly balanced? That’s what the Mercury Enertia ECO 3-Blade Stainless Steel Propeller ( 8M0151259) is built to deliver. Whether you are running long stretches across open water or cruising comfortably at midrange speeds, this prop gives you more range, less fuel burn, and a connection to your boat that feels effortless. It’s the kind of upgrade that transforms every trip not with flash, but with precision, strength, and performance you can feel in every throttle push.

Key Features

• Diameter and Pitch: 16" Diameter x 21" Pitch
• Rotation: Right-Hand Rotation
• Blade Count: 3-Blade design for balanced power and top-speed efficiency
• Material: Crafted from Mercury’s X7 stainless steel alloy — 30% stronger and four times more durable than standard stainless steel
• Finish: Polished stainless finish for a sleek, corrosion-resistant look
• Hub System: Compatible with Mercury’s hub kits (sold separately) for smooth, reliable engagement
• Design Details: Engineered for fuel economy at cruising speeds without compromising acceleration or top-end power

Engine & Boat Compatibility

The Mercury Enertia ECO 8M0151259 propeller is built for boaters who want to maximize fuel efficiency and range without sacrificing performance.

• Mercury and Mariner Command Thrust outboards: 90–115 HP
• Mercury TwoStroke and FourStroke outboards: 135–350 HP (excluding V10 Verado)
• MerCruiser sterndrive systems: Alpha One and Bravo One drives
• Ideal applications: Offshore fishing boats, performance runabouts, center consoles, and larger recreational vessels that benefit from efficient midrange cruising

Performance Benefits

Every boater knows that fuel economy and performance don’t always go hand in hand — but with the Mercury Enertia ECO, you get both. Designed using Mercury’s advanced X7 stainless steel alloy and hydrodynamic blade shaping, this propeller maximizes thrust while reducing drag, giving you noticeably better fuel economy at cruising speeds.

You’ll feel the difference as soon as you throttle up. The boat lifts cleanly, the acceleration is smooth, and cruising feels quieter and more composed. At speed, it holds steady even in choppy conditions, translating every bit of engine power into forward motion. When you ease back on the throttle, you’ll notice how effortlessly it maintains speed, letting you cover more distance with less fuel — an advantage you’ll appreciate on long days offshore or when towing for extended runs.

Its 3-blade design offers crisp handling and predictable cornering, while the X7 stainless steel ensures unmatched strength and resistance to flexing under load. The Enertia ECO maintains its edge and balance over time, offering dependable, efficient performance season after season.

Why This Prop Is a Strong Choice

If you are serious about maximizing your range and efficiency without giving up speed, the Mercury Enertia ECO (Part Number 8M0151259) is a propeller you’ll appreciate from the first launch. It’s designed for boaters who understand that performance isn’t just about going fast — it’s about going farther, smoother, and smarter.

Why this prop is a smart real-world choice:

• Mercury OEM quality: Designed, engineered, and tested by Mercury for lasting reliability and performance.
• Superior materials: Built from Mercury’s exclusive X7 alloy for unmatched strength and corrosion resistance.
• Real fuel savings: Optimized for cruising speeds where you run most often — improving range without losing acceleration.
• Balanced performance: Strong lift, smooth handling, and excellent grip across all speed ranges.
• Versatile fit: Works with a wide range of Mercury and Mariner outboards, plus MerCruiser sterndrives.

FAQ

Q1: Which Mercury engines does the Enertia ECO Propeller fit?

It’s compatible with Mercury and Mariner 90–115 HP Command Thrust outboards, 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 ECO is designed for superior fuel efficiency at midrange cruising speeds. Its hydrodynamic design reduces drag and increases thrust, helping boaters travel up to 10% farther per tank without sacrificing top-end performance.

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

A 16" diameter and 21" pitch propeller is ideal for larger boats or those that spend most of their time cruising at moderate RPMs, where efficiency and range matter most.

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

Yes. The X7 stainless steel alloy offers outstanding corrosion resistance, making it equally effective in saltwater or freshwater environments.

Q5: What hub system does it use?

The Enertia ECO requires a Mercury hub kit (sold separately) to ensure smooth shifting, secure mounting, and quiet, efficient operation.