Last Updated on December 7, 2022
If you’re like most people, you spend a lot of time researching products before you buy them. You want to make sure you’re getting the best possible value for your money. But with so many product reviews out there, it can be hard to know which ones to trust. That’s why we’ve done the legwork for you and compiled a list of the best lower unit gear oil
There are so many lower unit gear oil brands on the market like Slippery Pete, Quicksilver, Yoursme, PWC Parts Co, Mercury Marine/Mericruiser, YAMAHA, it can be tough to know which one will be the best. No worries, we’ve got you covered.
Slippery Pete – Lower Unit Gear Oil Pump for
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- 🚤 PUMPS 8CC PER PUMP STROKE (Includes Metal 3/8″ Adapter Connected To Clear Plastic Tubing)
- 🚤 THIS GEAR OIL CHANGE KIT includes 3 adapter sizes. 3/8″(Swivel, Metal), 8mm and 10mm (Metal). Take the guess work out of figuring out the size of your Lower Unit’s gear oil drain plug. (WON’T FIT VOLVO PENTA)
- 🚤 2 Rigid Suction Tubes REACHES TO BOTTOM OF TALL AND SHORT GEAR OIL BOTTLES
- 🚤Easy To Follow Instructions On Back Of Header Card
- 🚤 Re-closeable Poly Bag for Storage
Quicksilver 858064Q01 High Performance SAE 90
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- Formulated to protect against corrosion and excessive wear
- Designed for outboard and sterndrive applications above 75 HP
- Extreme pressure synthetic additives protect gears from metal to metal contact
- 32 ounce bottle
- SAE 90 viscosity
- Manufacturer part number 858064Q01
Quicksilver 80W-90 Premium Gear Lube – Marine
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- Formulated to protect against corrosion and excessive wear
- Improved emulsifiers protect gears should water enter the gear housing
- Designed for outboard applications below 75 HP
- Special additives protect gears from metal to metal contact.Exclusive formulation helps improve film adhesion to gears
- 25W-40 viscosity
Lower Unit Gear Lube Pump for Standard Quart
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- Fit all Quart Bottles, perfectly used on 32 ounce (946 ml) Gear Lube Bottle.
- 3/8″‑16 adapter fits for all Mercury and Mariner Outboard Motors and other American made outboards.
- 8mm aluminum adapter fits for Yamaha Nissan Tohatso Honda and Johnson Evinrude outboards.
- Include 1 suction tube which can reach the bottle bottom. 8 cc stable current per stroke. Easy to use.
- Satisfaction Guarantee — Yoursme aims to provide excellent products and best service for customers. You can simply return it if you are not satisfied with the product. We support 30 days full refund for return and 12 month warranty.
YAMAHA Yamalube OEM Outboard Gear Lube Kit w/
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- Genuine OEM Yamaha Lower Unit Gear Lube & Gaskets
- Includes Lower Unit Gear Lube Quart Pump
- Fits ALL Yamaha Outboards that use SAE 90 Gear Lube
- Keep your Yamaha Outboard running at peak performance with OEM Genuine Yamaha Parts
Mercury Marine New OEM High Performance Gear
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- Gear lube pump and a quart of High Performance gear lube conveniently packaged together
- Use the pump to replace your gear case oil with ease
- May be used with any sterndrive and outboard which uses a 3/8″-16 drain/fill screw
OEM Yamaha Lower Unit Gear Lube HD F350 and V
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- New
Yamaha ACC-GEARL-UB-QT Gearcase Lube, 1 Quart
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- New
Quicksilver 19183Q02 Lower Unit Gear Lube Dra
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- The Quicksilver Drain Screw gasket is used with the 3/8‑16 drain/fill screw found on all MerCruiser and most Mercury/Mariner outboards except Verado and those of Japanese origin
- Includes 4 gaskets
Slippery Pete Lower Unit Adapter Kit for Pump
Our Rating

- ⚓ Fits Most Major Domestic and Import Outboard Motor Lower Unit Fill Hole (WON’T FIT VOLVO PENTA)
- 🚤 1 Aluminum 3/8″-16 UN thread x 1/4″ barb SWIVEL adapter (See Picture #2)
- ⚓ 1 Aluminum 10mm – 1.25mm x 3/8″-16 NC Adapter (See Picture #3)
- 🚤 1 Aluminum 8mm – 1.25mm x 3/8″ – 16 NC Adapter (See Picture #4)
- ⚓ Re-closeable Poly Bag for Storage
Best lower unit gear oil Buying guide
When considering purchasing a product, it is important to consider what you need and want the product to do for you. There are many factors that can influence your decision when it comes to choosing a product, such as price, quality, features, and more. It is important to compare products before making a final decision to ensure that you are getting the best possible value for your money. Here are the few things that you need to look at before purchasing a product:
1. What you will use the product for?
Another factor to consider before purchasing a product is what you will use it for. If you are only going to use it occasionally, there is no need to spend a lot of money on a high-end model. However, if you plan to use it regularly, it is worth investing in a quality product.
2. Price:
The product’s price is one of the most important factors to consider. You need to find a balance between quality and price. It is important to remember that cheaper does not always mean better. Sometimes, it is worth spending a little extra money on a high-quality product.
3. Brand name:
One final factor to keep in mind is brand name recognition. In general, more well-known brands tend to charge more for their products. However, they also tend to be more reliable and offer better customer service.
4. Quality of the product:
Your first priority should always be the quality of the product. It is advisable to read online reviews or ask friends and family for recommendations.
5. The guarantees and warranties offered:
Most products come with some kind of guarantee or warranty. Make sure to read the fine print before making a purchase.
6. The return policy:
All reputable companies should have a return policy in case you are not satisfied with your purchase.
Frequently Asked Questions about Lower unit gear oil
Where Can I Buy This Product?
lower unit gear oil can be purchased online or at a store near your home or work. Each option has its advantages and disadvantages. You might need to wait longer for your item to arrive at your home if you choose an online store. Due to the fact that the cashier already assembled everything, the order is ready to ship out immediately after payment is received.
How much money do I need to spend?
Purchase the product that fits your budget if you can’t afford a high-quality product. The best quality lower unit gear oil, however, will cost more than what you originally planned to spend if you want it.
When making a purchase, is after-sales service important?
When looking for a reliable lower unit gear oil company, make sure they offer excellent after-sales service.
The company may need to be reconsidered if any complaints have been filed against it.
Also, be sure to ask about the return policy of a company, as some do not allow returns and/or require receipts.
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