Mercury – Verado12 Front Propeller | 27.5" Pitch | Left-Hand | 4-Blade | Stainless Steel | Polished | 8M0166985

Overview

There is something unforgettable about how a well-matched prop makes a big boat feel lighter. The Mercury Verado12 Front 4-Blade Stainless Steel Propeller (part number 8M0166985) does exactly that. It takes all that V12 horsepower and turns it into smooth, confident lift with no wasted effort. From the moment you ease into the throttle, the response feels natural — steady acceleration, quiet balance, and a sense of control that only Mercury engineering can deliver.

Key Features

• Diameter & Pitch: 27.5-inch pitch for balanced thrust and midrange efficiency
• Rotation: Left-Hand, designed for the front position in a dual contra-rotating setup
• Blade Count: Four blades for consistent lift, smooth grip, and precise control
• Material: Premium stainless steel for lasting durability
• Finish: Polished for corrosion resistance and clean water release
• Hub System: Compatible with Mercury Flo-Torq X and Flo-Torq X HD (for Joystick Piloting)
• Design Details: Includes Performance Vent System (PVS) for customized acceleration response

Engine & Boat Compatibility

• Mercury Outboards: V12 600 horsepower Verado, 500 horsepower SeaPro
• Sterndrive Applications: Not applicable — purpose-built for V12 outboards
• Boat Types: Luxury cruisers, large offshore boats, high-end performance vessels
• System Match: Pair with the rear 3-blade prop (8M0166986) for a full contra-rotating setup

Performance Benefits

This prop hooks up clean and strong, pulling you on plane quickly without a jolt. The four-blade design grips undisturbed water, delivering steady acceleration and quiet confidence at every speed. At midrange, you will feel the difference — less vibration, more balance, and precise steering feedback. The Performance Vent System (PVS) lets you adjust exhaust venting, so you can fine-tune how quickly your boat jumps onto plane.

It’s a prop that makes long runs feel effortless. Whether you’re trimming through chop or cruising steady at speed, it delivers that rare combination of power and refinement that keeps you comfortable and in control.

Why this prop is a strong choice vs. alternatives?

• Mercury OEM quality — Designed alongside the V12 platform for seamless balance and reliability
• Reliable and easy to maintain — Stainless construction handles tough saltwater environments
• Cost-effective vs. stainless — Premium performance with long-term value and durability
• Versatile fit across multiple setups — Ideal for cruisers, offshore boats, and luxury sport applications
• Custom tuning capability — PVS system gives you control over acceleration and responsiveness

When you want a prop that feels as refined as the engines driving it, this one delivers — smooth, steady, and built to last.

FAQ Section

Q1: Which Mercury engines does the 8M0166985 fit?

A1: It’s designed for Mercury’s V12 600-horsepower Verado and 500-horsepower SeaPro outboards.

Q2: What makes it different from other Mercury propellers?

A2: It’s the front half of a matched contra-rotating pair with adjustable PVS venting for fine-tuned performance.

Q3: How do I know if 27.5" pitch is right for me?

A3: Ideal for larger boats that need strong acceleration and steady midrange cruising efficiency.

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

A4: Yes — the stainless steel build and polished finish resist corrosion in both environments.

Q5: What hub system does it use?

A5: It uses Mercury’s Flo-Torq X or Flo-Torq X HD (for Joystick Piloting) hub kits.