Mercury – High Performance Multi-Purpose Extreme Grease | Marine Lubrication | 14 oz Cartridge | 8M0190470

Overview

There’s a certain calm that settles in when you know every moving part on your boat is protected. It’s that quiet confidence you feel when you throttle up before sunrise or ease back into the marina after a long run. Mercury Marine’s High Performance Multi-Purpose Extreme Grease, part number 8M0190470, is one of those behind-the-scenes essentials that keeps everything working the way it should. You do not think about it often, but you feel the difference every time a steering cable moves cleanly or a bearing stays cool under load.

This grease is the kind of product seasoned boaters keep close because it simply does its job without fuss. Whether your weekend takes you beyond the channel markers or just around the point, having dependable lubrication means you can focus on the water instead of worrying about wear.

Key Features

• Designed for general marine lubrication and long-lasting protection
• Calcium sulfonate-based grease with PTFE for extreme durability
• Smooth NLGI 2 consistency that resists washout when exposed to water
• Standard 14-ounce cartridge compatible with most manual and powered grease guns
• Ideal for steering cables, throttle and shift linkages, gimbal bearings, universal joints, suspension systems, and trailer wheel bearings
• Formulated to meet Mercury Marine original equipment manufacturer performance standards

Engine & Boat Compatibility

• Suitable for Mercury and Mariner outboards of various horsepower ranges
• Works with MerCruiser sterndrives requiring dependable lubrication points
• Commonly used on boats exposed to heavy steering or shifting cycles, including center consoles, pontoon boats, bass boats, bowriders, and coastal cruisers
• Recommended for trailers that haul freshwater or saltwater boats

Performance & Practical Benefits

You’ll notice how steady and responsive your controls feel when everything is properly greased. This formula holds its body, even after long days in rough conditions, so components stay coated instead of running dry. The grease clings tightly to contact surfaces, helping reduce friction, prevent hot spots, and keep corrosion at bay. That means steering stays smooth, shifting feels predictable, and bearings run cool mile after mile.

Even in wet, messy environments, this grease refuses to wash away. It keeps its structure whether you’re dunking a trailer in saltwater, hammering through chop, or letting the boat sit through stormy weather. The payoff is fewer surprises, fewer worn parts, and a boat that feels tight and well-kept.

Why Buy OEM

If you spend enough time on the water, you learn which parts are worth trusting. Mercury Marine parts are built to fit right the first time and keep everything performing the way the manufacturer intended. This grease is engineered around real-world marine conditions, so it handles heat, water, and constant movement far better than many aftermarket versions.

Choosing the genuine Mercury Marine part means you’re buying long-term protection, not a quick fix. It’s practical, cost-effective, and reliable — exactly what you want when the nearest ramp or marina is miles away.

FAQ

Q1: Which Mercury engines or systems does the High Performance Multi-Purpose Extreme Grease fit?

It works across a wide range of Mercury and MerCruiser systems, including common lubrication points found on most outboards, sterndrives, and rigging components.

Q2: What makes this different from aftermarket grease?

Mercury’s formula is engineered to hold up in wet, high-load environments, and it’s tested specifically for marine use. Many aftermarket products simply do not last as long under the same conditions.

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

If your maintenance schedule or service manual calls for a Mercury Marine multi-purpose grease — especially with PTFE — this is the correct part number.

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

Absolutely. Its resistance to washout and corrosion makes it suitable for both environments.

Q5: Is installation straightforward?

Yes. If you already use a standard 14-ounce grease gun, you’ll be able to pop in the cartridge and apply it with ease.