Why Lower Unit Gear Lube Is Necessary?
Best lower unit gear lube is necessary to ensure the gears in your lower unit are properly lubricated. This type of gear oil is designed to withstand the high temperatures and pressures that are present in a lower unit. This will help to extend the life of your gears and prevent them from prematurely wearing out.
Our Top Picks For Best Lower Unit Gear Lube
Best Lower Unit Gear Lube Guidance
Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser Sterndrives, 32 oz

The Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser Sterndrives is a lower unit gear oil formulated to protect against corrosion and excessive wear. It is designed for outboard motor lower unit and sterndrive applications above 75 HP. The extreme pressure synthetic additives protect gears from metal to metal contact. The lube extends gear life in extreme conditions including high-speed and high-horspower applications. The SAE 90 viscosity and 1 quart bottle make it an ideal choice for many applications.
Common Questions on Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser Sterndrives, 32 oz
• What are the benefits of using Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser Sterndrives?Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser Sterndrives is a high-quality gear oil that provides excellent protection and lubrication for your outboard or sterndrive. It is formulated to provide superior protection against wear and corrosion, and to ensure smooth operation of your engine.
Why We Like This
• 1. Lower unit gear oil formulated to protect against corrosion and excessive wear.• 2. Designed for outboard motor lower unit and sterndrive applications above 75 HP.• 3. Extreme pressure synthetic additives protect gears from metal to metal contact.• 4. Extends gear life in extreme conditions including high speed and high horspower applications.• 5. SAE 90 viscosity. 1 quart bottle. Manufacturer part number 858064Q01.
Additional Product Information
Color | Unspecified |
Height | 9.87 Inches |
Length | 7.62 Inches |
Weight | 0.025 Pounds |
Quicksilver 19183Q02 Lower Unit Gear Lube Drain and Fill Hole Screw Seal

When it comes to servicing your outboard motor, one of the most important things you can do is regularly change the gear lube. And, when changing the gear lube, it’s important to use the Quicksilver Lower Unit Gear Lube Drain and Fill Hole Screw Seal. This gasket is used with the 3/8‑16 drain/fill screw found on all MerCruiser and most Mercury/Mariner outboards, and is an essential part of making sure your gear lube change is done correctly. The Quicksilver Lower Unit Gear Lube Drain and Fill Hole Screw Seal includes 4 gaskets, so you can be sure you have a good seal on your drain/fill screw.
Common Questions on Quicksilver 19183Q02 Lower Unit Gear Lube Drain and Fill Hole Screw Seal
• What is the name of the company that manufactures Quicksilver gear lube?Quicksilver is manufactured by Mercury Marine.
• What is the recommended gear lube for Quicksilver outboard motors?
Quicksilver High Performance Gear Lube is the recommended gear lube for Quicksilver outboard motors.
• What is the capacity of the Quicksilver gear lube bottle?
The capacity of the Quicksilver gear lube bottle is 32 fluid ounces.
• How often should the Quicksilver gear lube be changed?
The Quicksilver gear lube should be changed every 50 hours of operation or once a year, whichever comes first.
Why We Like This
Durable construction for long lasting use
Specially designed for use with 3/8‑16 drain/fill screws
Fits most Mercury/Mariner outboards (except Verado and those of Japanese origin)
Includes 4 gaskets
Easy to install
Additional Product Information
Color | Unspecified |
Height | 1.61 Inches |
Length | 5 Inches |
Weight | 0.01543235834 Pounds |
OEM Yamaha Lower Unit Gear Lube HD F350 and V8 ACC-GLUBE-HD-QT

OEM Yamaha Lower Unit Gear Lube is a high-quality, durable gear oil that is specifically designed for use in Yamaha outboard motors. This gear oil is formulated to provide excellent protection against wear and corrosion, and to ensure smooth operation of the gear system.
Common Questions on OEM Yamaha Lower Unit Gear Lube HD F350 and V8 ACC-GLUBE-HD-QT
• What is the difference between OEM Yamaha Lower Unit Gear Lube HD and Yamaha V8 ACC-GLUBE-HD-QT?The OEM Yamaha Lower Unit Gear Lube HD is a synthetic, high-performance gear lube designed specifically for Yamaha outboard motors. The Yamaha V8 ACC-GLUBE-HD-QT is a mineral-based gear lube designed for Yamaha’s V8 outboard motors.
Why We Like This
1. OEM Yamaha Lower Unit Gear Lube is a high quality gear oil that is specifically designed for Yamaha outboard motors.
2. This gear oil provides excellent protection for gears and bearings, and helps to extend the life of your outboard motor.
3. This gear oil is compatible with all Yamaha outboard models, and is available in a quart size.
4. Yamaha Lower Unit Gear Lube is a non toxic and biodegradable gear oil, making it safe for the environment.
5. This gear oil is made in the USA, and comes with a one year warranty.
Additional Product Information
Height | 9 Inches |
Length | 4 Inches |
Weight | 0.5 Pounds |
Slippery Pete – Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel, 8mm and 10mm Adapters to Fit Most Marine Boat Outboard Motors (NOT COMPATIBLE WITH VOLVO PENTA)

The Slippery Pete Lower Unit Gear Oil Pump is a great way to change your gear oil without making a mess. This pump comes with 3 adapters to fit most marine boat outboard motors and 2 suction tubes to reach the bottom of tall and short gear oil bottles. The easy to follow instructions make it a breeze to use, and the re-closeable poly bag makes it easy to store for next time.
Common Questions on Slippery Pete – Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel, 8mm and 10mm Adapters to Fit Most Marine Boat Outboard Motors (NOT COMPATIBLE WITH VOLVO PENTA)
• What is the gear oil pump made of?The gear oil pump is made of metal.
• What is the gear oil pump used for?
The gear oil pump is used to pump gear oil into the lower unit of a boat’s outboard motor.
• What adapters does the gear oil pump include?
The gear oil pump includes 3/8 inch, 8mm, and 10mm adapters.
• What is the gear oil pump NOT compatible with?
The gear oil pump is NOT compatible with Volvo Penta outboard motors.
Why We Like This
• Pumps 8cc per pump stroke• Includes 3 adapter sizes: 3/8″, 8mm, and 10mm• 2 rigid suction tubes• Easy to follow instructions• Re closeable poly bag for storage
Additional Product Information
Color | Chrome Metal Swivel Adapter |
Height | 1 Inches |
Length | 9 Inches |
Quicksilver 80W-90 Premium Gear Lube – Marine Engine – 32 Ounce

If you’re looking for a gear lube that can protect your outboard engine from corrosion and wear, Quicksilver 80W-90 Premium Gear Lube is a great option. The improved emulsifiers in this lube will help protect your gears if water somehow enters the gear housing, and the special additives help to prevent metal-to-metal contact. This gear lube is also designed to improve film adhesion to gears, which helps to extend their life. Plus, the 25W-40 viscosity makes this lube ideal for use in outboard engines below 75 HP.
Common Questions on Quicksilver 80W-90 Premium Gear Lube – Marine Engine – 32 Ounce
• What is the purpose of Quicksilver 80W-90 Premium Gear Lube – Marine Engine – 32 Ounce?The gear lube is designed to provide superior protection for marine engines, reducing wear and extending engine life.
• How does Quicksilver 80W-90 Premium Gear Lube – Marine Engine – 32 Ounce work?
The gear lube works by creating a protective barrier between moving parts, reducing friction and wear.
• What are the benefits of using Quicksilver 80W-90 Premium Gear Lube – Marine Engine – 32 Ounce?
The gear lube provides superior protection for marine engines, reducing wear and extending engine life.
• How often should I use Quicksilver 80W-90 Premium Gear Lube – Marine Engine – 32 Ounce?
For best results, the gear lube should be used every time you change your engine oil.
Why We Like This
#1. Formulated to protect against corrosion and excessive wear.
#2. Improved emulsifiers protect gears should water enter the gear housing.
#3. Designed for outboard applications below 75 HP.
#4. Special additives protect gears from metal to metal contact.
#5. Exclusive formulation helps improve film adhesion to gears.
Additional Product Information
Color | Unspecified |
Height | 9.25 Inches |
Length | 4 Inches |
Weight | 1.8 Pounds |
Benefits of Lower Unit Gear Lube
The best lower unit gear lube will keep your boat’s lower unit functioning properly. Gear lube lubricates the gears and bearings in the lower unit, which helps to prevent wear and tear. It also helps to keep water and other contaminants out of the gearbox, which can cause damage.
Gear lube is available in different weights, depending on the type of application. For example, heavier weights are typically used for high-performance applications or in environments where there is a lot of debris in the water. Choose the weight that is recommended for your boat’s lower unit by checking your owner’s manual or contacting your local marina or dealer.
Buying Guide for Best Lower Unit Gear Lube
Choosing the best lower unit gear lube for your boat can be a difficult task. There are many different brands and types of gear lube on the market, and it can be hard to know which one is right for your boat. However, there are a few things that you can keep in mind when choosing a gear lube that will help you make the best decision for your boat.
First, you need to think about what type of boating you will be doing. If you only use your boat for occasional fishing trips, then you may not need the same type of gear lube as someone who uses their boat for racing or other high-performance activities.
Second, you need to consider the environment in which you will be using your boat. If you live in an area with salt water, then you need to make sure that the gear lube you choose is designed for salt water use. Fresh watergear lubes will not stand up to the corrosive effects of salt water and could damage your engine.
Third, you need to decide what viscosity grade of gear oil you need. The higher the number, the thicker the oil and the more protection it will provide to your gears. However, thicker oils can cause drag on your engine and may make it work harder than necessary. Conversely, thinner oils may not provide enough protection for your gears and could lead to premature wear or damage.
Fourth, check the opinio4664ns of others who have used different brands and types of gear oil before making your final decision. Reading reviews from other boaters can give you a good idea of what has worked well for others in similar situations as yourself
Frequently Asked Question
What is the best lower unit gear lube for my boat?
Some things to consider when choosing a lower unit gear lube for your boat include the type of boat you have, the conditions in which you will be using the boat, and your personal preferences.
Which lower unit gear lube is best for salt water use?
There is no definitive answer to this question as there are a variety of gear lubes available on the market, each with its own set of benefits and drawbacks. Some gear lubes are designed specifically for salt water use, while others may be more versatile and suitable for a variety of different applications. Ultimately, it is important to consult with a qualified marine technician to determine which gear lube is best for your specific boat and operating conditions.
What is the best lower unit gear lube for freshwater use?
There is no definitive answer for this question as different people have different opinions. Some commonly recommended lower unit gear lubes for freshwater use include Pennzoil Marine Gear Lube and Yamalube Marine Gear Lube.
What is the best lower unit gear lube for high performance boats?
Some of the more popular brands of lower unit gear lube for high performance boats include Mercury Marine’s Quicksilver High Performance Gear Lube and Yamaha’s Yamalube High Performance Gear Lube.
What is the best lower unit gear lube for recreational boats?
There is no definitive answer to this question as different boat owners will have different opinions. Some popular lower unit gear lubes for recreational boats include Quicksilver High Performance Gear Lube, Mercury Premium Gear Lube, and Yamaha brand gear lube.
Conclusion
If you are looking for the best lower gear lube, then look no further. This product is the perfect solution for your needs. It is formulated to provide superior protection and performance in all types of conditions. It is also backed by a money back satisfaction guarantee, so you can be sure that you are getting the best product for your money.
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