Mercury – High Performance Extreme Grease | Multi-Purpose Marine Lubricant | 14 oz Cartridge | 8M0190472

Overview

Every seasoned boater has a few go-to products they trust without hesitation, and this is one of them. Mercury’s High Performance Extreme Grease, part number 8M0190472, brings that calm reassurance you feel when every moving part on your boat behaves exactly the way it should. You know the feeling — the wheel turns without a hint of drag, the shift cable glides into gear, and nothing grinds, sticks, or surprises you. Whether you’re twenty miles offshore or easing into your home slip at dusk, reliable lubrication is one of the quiet heroes that keeps the day running smooth.

This grease earns its keep the moment the heat climbs, the load increases, or the water gets messy. It’s made for real-world use, not just the clean showroom version of boating we all pretend exists.

Key Features

• Multi-purpose marine lubricant designed for high-temperature, high-load environments
• Premium calcium sulfonate-based formula with a smooth NLGI 2 consistency
• Holds structure even when exposed to water, spray, or repeated dunking
• Compatible with all standard 14-ounce grease guns
• Works beautifully on steering cables, throttle and shift linkages, drive shaft splines, gimbal bearings, universal joints, ball joints, disc brakes, suspension systems, and trailer wheel bearings
• Excellent corrosion and rust protection in marine, automotive, and powersports applications
• Fully compatible with lithium-based greases

Engine & Boat Compatibility

• Suitable for Mercury outboards across a wide horsepower range
• Fits lubrication points on MerCruiser sterndrives
• Commonly used on center consoles, pontoons, runabouts, fishing boats, and tow boats
• Ideal for trailers hauling freshwater or saltwater vessels
• Performs well on powersports equipment such as ATVs, UTVs, motorcycles, and snowmobiles

Performance & Practical Benefits

With this grease, everything just feels tighter and more predictable. Controls stay smooth instead of sticky, and bearings run cool under pressure. Even after a long day of chop or trailering, the grease stays put, clinging to the surfaces that need protection. You’ll notice fewer squeaks, less resistance, and a steady confidence that the components beneath you are protected from heat, water intrusion, and corrosion.

Its water resistance is especially reassuring. Whether you’re dunking a trailer in saltwater, powering through a storm line, or storing the boat for a week, the grease will not thin out or wash away. It keeps your moving parts coated and secure, giving your equipment a longer, healthier life.

Why Buy OEM

When you’ve been around boats long enough, you learn what’s worth cutting corners on — and what absolutely is not. A genuine Mercury Marine part is engineered to handle the punishment that real boating delivers. It lasts longer, protects better, and saves you money in the long run. Aftermarket products might look similar on the shelf, but they rarely hold up the same once the heat, load, and water start working against them.

Choosing the OEM version means you’re installing something that fits your routine effortlessly and performs right the first time. It’s reliable, practical, and smart — the kind of advice any experienced boater would pass along.

FAQ

Q1: Which Mercury engines or systems does this grease fit?

It works across most Mercury outboards, MerCruiser sterndrives, and common marine rigging points.

Q2: What makes it different from aftermarket grease?

It’s built specifically for harsh marine conditions and maintains its structure under intense heat, load, and water exposure.

Q3: How do I know if this is the correct replacement?

If your manual calls for Mercury High Performance Extreme Grease or a calcium sulfonate multi-purpose lubricant, this is the correct part number.

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

Yes. Its corrosion protection and water resistance make it ideal for both environments.

Q5: Is installation straightforward?

Absolutely. Just load the 14-ounce cartridge into a standard grease gun and apply normally.