Mercury – Performance Vent System Plug | Propeller Vent Plug | Composite | 889725047

Overview

If you’ve ever fine-tuned your boat’s holeshot or chased that perfect balance of lift and grip, you know the smallest adjustments can make the biggest difference. The Mercury 889725047 Performance Vent System Plug gives you that control — a simple piece, but one that lets your propeller respond the way you want it to. It’s the kind of part you appreciate after a long weekend on the water, when you realize your boat is jumping onto plane quicker, running cleaner, and feeling more dialed in than before.

Key Features

• Designed for Mercury and Quicksilver propellers equipped with Performance Vent System holes
• Composite vent plug used to partially close forward exhaust vent openings
• Plug diameter: 0.470 inches (12 millimeters)
• Heat-resistant design stays secure at high speeds
• Helps adjust propeller wind-up and holeshot behavior

Engine & Boat Compatibility

• Fits Mercury and Quicksilver propellers with PVS-equipped hubs
• Suitable for FourStroke, TwoStroke, and sterndrive setups using PVS props
• Works well for bass boats, bay boats, offshore boats, and high-performance rigs
• Ideal for boaters who want more control over acceleration and propeller tuning

Performance & Practical Benefits

Propeller tuning is one of those small joys of boating — that moment when you throttle up and the boat lifts cleanly, leaning into the exact response you hoped for. These PVS plugs give you the ability to shape that feel. By partially closing the vent holes, they help your propeller “wind up” at the right rpm, tightening the holeshot and smoothing the transition onto plane. The result is a boat that feels more responsive, predictable, and comfortable to drive.

The composite design is tough and heat-resistant, so once the plugs are installed, they stay put even when you’re running at speed through rough water. They fit cleanly into the propeller hub without rattling loose or shifting over time. Whether you’re dialing in a bass boat for tournament mornings or tuning a family rig so it climbs out of the hole with less effort, these plugs give you subtle but noticeable control.

Why Buy OEM

Mercury’s Performance Vent System is engineered as a complete system, and using OEM plugs ensures they fit exactly as intended. Aftermarket vents can loosen, warp, or fall out — something no boater wants to discover after a hard run. OEM plugs give you consistency, durability, and the quiet confidence that comes from parts designed to work with your Mercury propeller.

FAQ

Q1: Which propellers do these PVS plugs fit?

Any Mercury or Quicksilver propeller equipped with PVS vent holes.

Q2: How do these differ from aftermarket plugs?

OEM plugs hold their shape, resist heat, and stay secured during high-speed operation.

Q3: How do I know they’re right for my prop?

If your propeller has removable PVS vent inserts, these are the correct replacements.

Q4: Can they be used in saltwater and freshwater?

Yes — they’re made from composite material that resists corrosion and heat.

Q5: Are they easy to install?

 Very — simply press them into the vent holes until fully seated.