Yamalube Marine Greases

Yamalube Marine Greases – Trusted Protection for Yamaha Outboards

Marine grease is a water-resistant, corrosion-fighting lubricant made to stay in place around water, spray, and salt exposure. For Yamaha outboards, the simplest rule is to use the Yamalube grease your owner’s or service manual specifies, then keep key points like the prop shaft, steering pivots, and fittings protected year-round.

Below you’ll find Yamaha’s Yamalube marine grease lineup for boat motors – ideal for prop shafts, steering components, tilt points, and other fittings that see water, pressure, and friction. If you’re looking for the best grease for your boat motor, Yamalube is the factory-backed option most Yamaha owners reach for first.

What makes Yamalube marine grease a smart choice for outboards?

Yamalube greases are built for the real-world conditions that boat owners deal with all season: water washout, corrosion, heat, pressure, and long periods of sitting. That matters on a Yamaha outboard, where exposed moving parts need grease that stays put instead of thinning out or rinsing away.

• Water-resistant: Helps stay in place around spray, splash, and wet conditions
• Anti-corrosion: Helps protect metal surfaces from rust and salt exposure
• Pressure-tolerant: Supports moving parts under load and vibration
• Adhesive: Clings well to friction surfaces and exposed components

From Yamalube multipurpose marine grease to Yamalube moly grease for tougher, high-load points, YamahaOnlineParts.com carries the full lineup – whether you need a single cartridge or want to stock up with a value pack.

Which Yamalube grease do I need?

If your Yamaha owner’s or service manual references a grease code, match that code to the correct Yamalube grease below.

Service manual spec	Yamalube grease	Best for	Why it’s chosen
Grease A	Yamalube Multi Purpose Marine Grease (ACC-GREAS-14-CT)	General marine grease points, exposed fittings, prop shaft servicing	Water-resistant, anti-corrosive, washout-resistant, and suited to marine exposure
Grease B	Yamalube Multi Purpose Grease	General-purpose points where grease B is specified	Resists extreme pressure, water, and corrosion
Grease H	Yamalube Polyurea Grease	Points where grease H is specified	NLGI #2 grease that helps protect against oxidation, rust, and aging
Grease M	Yamalube Molybdenum Disulfide Grease	High-load points where grease M is specified	Low-friction, water-resistant formula designed to help protect against wear and galling

Quick tip: If you are not sure which grease your engine calls for, check your Yamaha owner’s manual first, then match the grease code above to the correct product.

Where to grease a Yamaha outboard

A few grease points usually matter the most because they are exposed, moving, and more likely to see water intrusion or corrosion.

• Propeller shaft / splines: Periodically remove the propeller, check for fishing line, and grease the shaft before reinstalling.
• Steering slide fittings: These are common grease-gun service points on Yamaha outboards.
• Steering column: Another high-value point that benefits from regular fresh grease.
• Shift mechanism fittings: Especially important when the boat sits between trips or runs in saltwater.
• Other pivot and trim-related points: Follow your owner’s manual for the exact locations on your model.

Whether you’re prepping for a fishing trip, mid-season maintenance, or end-of-season storage, a few minutes with the right grease can go a long way toward preventing wear and corrosion.

How to grease your Yamaha outboard

Greasing your outboard is straightforward when you have the right supplies: a grease gun, clean rags, and the Yamalube grease your manual specifies.

1. Wipe the grease fitting clean so you do not push grit into the joint.
2. Attach the grease gun nozzle firmly.
3. Pump slowly until you see clean grease begin to appear or you feel normal resistance.
4. Wipe away the excess and leave a light protective film on the outside.
5. For prop shaft service, remove the propeller, inspect for fishing line, grease the shaft, and reinstall with the correct hardware.

How often should you grease a Yamaha outboard?

Follow your owner’s manual for the exact service interval. In practice, many owners inspect and refresh grease during seasonal maintenance and any time they remove the propeller or service exposed moving parts. If you run in saltwater, heavy spray, or rough conditions, check grease points more often.

Marine grease vs automotive grease

Automotive grease is not designed around the same level of water exposure a boat motor sees. Marine greases are made to resist water and help protect metal from corrosion, which makes them a better fit for outboards, steering pivots, prop shafts, and fittings that are regularly exposed to splash, humidity, and salt.

Important caution: don’t mix greases unless you know they’re compatible

Mixing incompatible greases can change consistency and performance. If you are switching grease types, it is best to clean or purge out the old grease first and then refill with the correct Yamalube grease listed in your manual.

Keep maintenance simple and effective

Maintaining your Yamaha outboard is easier when you have the right grease on hand. A grease gun, a few clean rags, and the proper Yamalube cartridge are usually all it takes to stay ahead of wear, reduce corrosion risk, and keep parts moving the way they should.

Yamalube grease for boat motors is not just for one fitting or one season. It helps protect the parts that live in spray, salt air, friction, and vibration – exactly the spots that can become expensive if they are neglected. It is one of those small maintenance habits that can save a lot of frustration later.

→ Shop Yamalube Marine Grease for Boat Motors
Browse Yamaha’s full selection of marine greases – multipurpose marine grease, multipurpose grease, polyurea grease, and moly grease. Whether you are stocking up for routine service or getting ready for storage, this collection makes it easier to choose the right grease for your engine and your maintenance routine.

Need a hand servicing your Yamaha OEM parts and accessories? We’ve got you covered with some helpful links below:

• Yamaha Outboard Engine Schematics
• Winterizing Yamaha Outboard Motors
• Yamaha Ring Free Plus – Is It Essential?
• Fuel Filter Guide for Yamaha Outboards

Yamalube Marine Grease FAQs

What is marine grease?

Marine grease is a water-resistant lubricant designed to stay in place and help protect moving parts from moisture, corrosion, and washout in wet conditions.

What grease should I use on my Yamaha outboard motor?

Use the Yamalube grease your owner’s or service manual specifies. If your manual lists a grease code such as A, B, H, or M, match that code to the correct product in the table above.

Is Yamalube marine grease waterproof?

It is designed to be water-resistant, which helps it stay in place and protect metal surfaces in wet, splash-prone, and salt-exposed areas.

What’s the difference between Yamalube marine grease and moly grease?

Yamalube Multi Purpose Marine Grease is a strong general choice for marine exposure where your manual calls for it, while Yamalube Molybdenum Disulfide Grease is intended for high-load points where grease M is specified.

What’s the difference between marine grease and polyurea grease?

Marine grease is commonly used for general water-exposed marine lubrication points, while polyurea grease is the correct choice where your Yamaha manual specifically calls for grease H.

Where are the grease points on a Yamaha outboard?

Common points include the propeller shaft, steering slide fittings, steering column, and shift mechanism fittings. Your owner’s manual is the best source for the exact locations on your model.

How do you grease a Yamaha outboard motor?

Use a grease gun loaded with the correct Yamalube grease, wipe each fitting clean, pump slowly until clean grease appears or resistance builds normally, then wipe away excess. When servicing the propeller, remove it first, inspect for fishing line, and grease the shaft before reinstalling.

How often should I grease my Yamaha outboard?

Follow your owner’s manual. At minimum, inspect key grease points during routine seasonal service and more often if the motor is used in saltwater or heavy-duty conditions.

Can I mix different grease types?

It is better not to unless you know they are compatible. If you are changing grease types, clean or purge out the old grease first and then refill with the correct one.

Can I use regular automotive grease on my Yamaha motor?

It is not recommended for marine exposure. Marine grease is built for water resistance and corrosion protection around water and salt, which is what your outboard sees most.

Stay ahead of wear with Yamalube

It only takes a few pumps of the right grease to help avoid corrosion, sticking, and premature wear. Whether you are fishing every weekend, servicing the propeller, or preparing for storage, regular greasing helps keep your Yamaha outboard moving smoothly.

Explore our full collection of Yamalube marine greases – including multi-purpose marine grease, general-purpose grease, polyurea grease, and high-pressure moly grease – and stock up today. YamahaOnlineParts.com is your trusted source for Yamaha OEM maintenance products and the routine service items that help keep your outboard ready for the next trip.

At the end of the day, a few shots of grease can save you a lot of hassle later. YamahaOnlineParts.com carries everything from individual Yamalube tubes to value packs, so it is easy to keep the right grease on hand and stay ahead of wear.