Mercury – Premium Power Steering Fluid | Full Synthetic Marine Formula | 1 Quart | 8M0173227

Overview

When you’re running tight channels, easing into a slip on a windy afternoon, or carving across open water with friends onboard, you feel every bit of your steering system—not just the wheel in your hands. That’s why the fluid behind it matters. Mercury Premium Power Steering Fluid (8M0173227) is the kind of product seasoned boaters rely on, because it delivers the same quiet confidence you get from well-tuned controls and responsive handling. It keeps steering smooth and predictable, even when conditions get rough or temperatures swing wildly.

There’s a real peace of mind in knowing your steering performance won’t fall off when you need it most. This formula is engineered specifically for marine environments, and you can feel that purpose every time you turn the helm.

Key Features

• Full synthetic formula engineered for demanding marine steering systems
• Provides full performance from -40°F (-40°C) to over 266°F (130°C)
• Exceptional protection for steering system seals, hoses, and internal components
• Designed to meet strict Mercury Marine OEM specifications
• Smooth, consistent steering response in all weather and water conditions
• Ideal for high-performance, heavy-load, and extended-hour operation

Engine & Boat Compatibility

Suitable for:

• Mercury power steering systems requiring full synthetic steering fluid
• Mercury FourStroke, Verado, and MerCruiser sterndrive platforms with hydraulic steering
• Boats running hydraulic-assisted steering, including:
  • Center consoles
  • Pontoon boats
  • Offshore fishing boats
  • Cruisers and sport boats
  • Workboats with long daily run times

Performance & Practical Benefits

Good steering isn’t something you think about when it’s working right—but you definitely feel it when it isn’t. This premium synthetic formula keeps steering motion tight and steady, helping your helm feel more like an extension of your hands than a mechanical system.

Because it’s built to handle extreme temperature swings, the fluid stays stable whether you’re firing up at dawn in cold weather or spending long days under full sun. The additive package protects seals and hoses from breakdown, helping you avoid leaks, stiffness, or degraded steering feel over time.

The result? A helm that stays smooth, predictable, and responsive. No hesitation, no dragging, no surprises—just the kind of confidence you want at the wheel.

Why Buy OEM

Boat owners who’ve been around the dock a while know there’s no shortcut when it comes to steering components. Choosing Mercury OEM fluids means:

• Guaranteed compatibility with Mercury hydraulic systems
• Better long-term reliability and reduced maintenance issues
• Protection specifically engineered for marine environments—not automotive substitutes
• Peace of mind knowing the fluid meets Mercury’s highest performance standards

When it comes to control, precision, and safety, OEM is the smartest path every time.

FAQ Section

Q1: Which systems does this power steering fluid fit?

It’s designed for Mercury steering systems that require full synthetic fluid, including many FourStroke, Verado, and MerCruiser setups.

Q2: What makes it better than aftermarket alternatives?

The formula is optimized for marine temperature extremes, protects seals and hoses, and meets strict Mercury OEM specifications.

Q3: How do I know if it’s the right fluid for my setup?

Check your owner’s manual—if it specifies full synthetic power steering fluid, this is the exact match.

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

Absolutely. It’s formulated to handle both environments with excellent corrosion resistance.

Q5: Is installation straightforward?

Yes. Most boat owners can top off or replace fluid easily by following their manual’s instructions.