Mercury – Quicksilver PCV Valve | V8 MerCruiser Engines | Marine Ventilation | 8M2017060

Overview

Anyone who’s owned a V8-powered MerCruiser knows the familiar comfort that comes when the engine settles into that deep, steady rumble. It’s the sound of everything working the way it should. But behind that reliability are small components doing quiet, important work—parts you rarely see, yet you’d miss them instantly if they failed. The Quicksilver 8M2017060 PCV Valve is one of those parts. It keeps your crankcase breathing properly so your engine stays clean, dry, and running strong, no matter where your weekend takes you.

Whether you’re cruising across glassy morning water or running hard toward open sea, there’s real peace in knowing your engine is protected from moisture buildup and harmful blow-by gases. This part keeps that peace intact.

Key Features

• Regulates crankcase ventilation on select V8 MerCruiser engines
• High-quality construction built specifically for marine environments
• Designed to maintain proper vacuum levels inside the crankcase
• Helps remove moisture and harmful combustion byproducts
• Direct replacement built to Mercury Marine part number 8M2017060 specifications

Engine & Boat Compatibility

• For use on General Motors–based V8 MerCruiser engines, including:
  • 305 cubic inch
  • 350 cubic inch
  • 377 cubic inch
  • 454 cubic inch
  • 575 SCi
• Common on:
  • Performance sterndrive boats
  • Cabin cruisers
  • Sport boats and bowriders
  • Work boats and marina fleet vessels
• Suitable for both sterndrive and inboard layouts utilizing these V8 powerheads

Performance & Practical Benefits

A clean-running marine engine starts with proper ventilation. This PCV valve plays a larger role in that than most boaters realize. By controlling the flow of vapors inside the crankcase, it keeps internal pressure right where it should be—steady, balanced, and predictable. You’ll feel the difference in small but important ways.

Idle feels smoother. Acceleration is more crisp. Oil stays cleaner longer. And because moisture is constantly being evacuated, long-term corrosion inside the engine is reduced. That means fewer surprises, fewer expensive repairs, and more days when you turn the key and everything responds the way you expect.

Installation is simple, and once in place, it quietly protects the heart of your engine every time you head out. It’s one of those “install it and forget it” components, yet it has a surprisingly big impact on long-term engine health.

Why Buy OEM

When it comes to crankcase ventilation, precision matters. Aftermarket valves often don’t maintain the correct vacuum level, which can lead to rough running, oil leaks, or increased engine wear. A genuine Mercury Marine part gives you the exact calibration your engine was engineered for. It’s built to withstand marine heat cycles, vibration, and moisture—things car-based valves often struggle with.

Choosing OEM means fewer headaches, better engine longevity, and a part that’ll fit and function the first time. It’s simply the smart choice for anyone who relies on their boat for long weekends or long seasons.

FAQ

Q1: Which engines does the PCV Valve 8M2017060 fit?

It fits V8 MerCruiser engines based on General Motors blocks, including 305, 350, 377, 454, and 575 SCi models.

Q2: What makes this different from aftermarket options?

OEM calibration and durability—Mercury designs it specifically for marine operating conditions.

Q3: How can I confirm it’s the correct part for my setup?

Check your engine model and refer to your owner’s or service manual for part number confirmation.

Q4: Can it be used in freshwater and saltwater environments?

Yes. It’s engineered for both, with materials suited to harsh marine conditions.

Q5: Is installation simple for most boat owners?

Yes, most owners can install it using basic tools and a few minutes of time.

• Supersessions
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