Best Lower Unit Gear Oils (Dec. 2024) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

Quicksilver 858064Q01 SAE 90 High Performance Gear Lube , 32 oz

9.9
CPR Score
Top 2

Quicksilver 80W-90 Premium Gear Lube - Marine Engine - 32 Ounce

9.7
CPR Score
Top 3

Mercury Marine New OEM High Performance Gear Lube with Hand Pump, 91-8M0101435

9.6
CPR Score
Tips


Below is a list of the top 28 best Lower Unit Gear Oils. Our team has selected the top products by analyzing and evaluating 142 products of different Oils & Fluids brands, including YAMAHA, attwood, Lucas Oil, STAR BRITE, Quicksilver, Valvoline, LubriMatic, Hardware & Outdoor, REV X, Suzuki, Triax, Sierra, SIERRAMARINE, Sierra_47, Su Zuki, Yamaha Motors, Mercury Marine Mercruiser, Mercury Marine, Mercury Marine/Mericruiser, Johnson/Evinrude/OMC/BRP And Shipmate. Hope this listing can make your shopping choice much easier.

* CherryPicks.Reviews is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Lower Unit Gear Oils Rated by CherryPicks

Market Overview
Lower Unit Gear Oils Reviewed
  • Reviews Analyzed: 15,404 Items
  • CPR Avg. Rating: 8.5 / 10
28 Products Evaluated
  • Highest Price: $184.49
  • Lowest Price: $7.99
  • Avg. Price: $43.43
Price Disclaimer

Top 28 Lower Unit Gear Oils on Amazon (Verified You can Buy)

Quicksilver 858064Q01 SAE 90 High Performance Gear Lube , 32 oz

Quicksilver
92-858064Q01
7.62 x 8.75 x 9.87 Inches
0.025 Pounds

Ratings for Quicksilver (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Lower unit gear oil formulated to protect against corrosion and excessive wear
Designed for outboard motor lower unit and sterndrive applications above 75 HP
Show More

Quicksilver 80W-90 Premium Gear Lube - Marine Engine - 32 Ounce

Quicksilver
858058Q01
4.0 x 2.38 x 9.25 Inches
1.8 Pounds

Ratings for Quicksilver (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
AB MARINE PARTS -

Features

Provides maximum protection against excessive wear, corrosion and pitting for extended gear life in marine applications
Contains additives to protect gears if water enters the gearcase or lower unit
Show More

Mercury Marine New OEM High Performance Gear Lube with Hand Pump, 91-8M0101435

Mercury Marine/Mericruiser
16.0 x 8.0 x 9.0 Inches
2.0 Pounds

Ratings for Mercury Marine/Mericruiser (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Aleksandra & Co. 4,473
LEADERS RPM 3,884
TX Parts LLC -
AB MARINE PARTS -
KIEN_LLC -

Features

Genuine OEM Factory Original Equipment Mercruiser Sterndrive & Outdrive Oil
Exclusive formula is engineered to provide extended gear life in extreme conditions including high-speed and high-horsepower applications
Show More

STAR BRITE Synthetic Blend Lower Unit Gear Lube 80w 90w - High Viscosity Marine Gear Oil for Outboard Motors, 128 Ounce Gallon (027200)

STAR BRITE
027200
4.0 x 7.5 x 12.5 Inches
7.85 Pounds

Ratings for STAR BRITE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

SUPERIOR PERFORMANCE - High viscosity synthetic blend 80W-90 gear oil, designed for API GL-5, MT-1 service SAE J2360, and Mack GO-J
LONG TERM PROTECTION - Ideal for all engines over 100 hp, our gear oil provides exceptional long-term protection against rust and corrosion, extending your engine's lifespan
Show More

Yamalube ACC-GLUBE-HD-GL Marine Lower Unit Gear Lube HD (GALLON)

Yamaha Motors

Ratings for Yamaha Motors (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Jorgensen Powersports -

OEM Yamaha Lower Unit Gear Lube HD F350 and V8 ACC-GLUBE-HD-QT

YAMAHA
4.0 x 3.0 x 9.0 Inches

Ratings for YAMAHA (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Byron Powersports & Tractor Co. -
D&D Brothers Inc -
Kroll's Marine -

Features

Quantity per pack = 12

Mercury SAE 90 High Performance Gear Lube

Hardware & Outdoor
4.25 x 2.25 x 9.5 Inches

Ratings for Hardware & Outdoor (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Boating Accessories -
TX Parts LLC -

Features

Genuine OEM Factory Original Equipment Mercruiser Sterndrive & Outdrive Oil
Exclusive formula is engineered to provide extended gear life in extreme conditions including high-speed and high-horsepower applications
Show More

Sierra International 18-9600-5 Premium Lower Unit Gear Lube - 5 Gallons , white

SIERRAMARINE
18-9600-5
15.0 x 12.0 x 12.0 Inches
38.16 Pounds

Ratings for SIERRAMARINE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
UnbeatableSale, Inc 1,011
Freedom Mercantile, LLC -

Features

Reduces friction and protects gears, bearings and other gear case components
Formulated for use in fresh water or saltwater conditions
Show More
Top 9

Yamaha New OEM Lower Unit Gearcase Lube Oil, ACC-GEARL-UB-QTx4

7.0 Pounds

Ratings for Yamaha New OEM Lower Unit Gearcase Lube Oil, ACC-GEARL-UB-QTx4 (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
LEADERS RPM 3,884
Cyclemax 5,394

Features

SKU: ACC-GEARL-UB-QTx4
Sold Each
Show More

Mercury Marine Mercruiser High Performance Gear Lube Quart 92-858064K01 & Pump Kit

Mercury Marine
4.25 x 2.25 x 9.5 Inches
2.0 Pounds

Ratings for Mercury Marine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Doug Russell Marine -

Features

Fluid Pump & 1 Qt Genuine OEM Factory Original Equipment Mercruiser Sterndrive/Outdrive Oil
Exclusive formula is engineered to provide extended gear life in extreme conditions including high-speed and high-horsepower applications
Show More

Sierra 18-9650-5 Hi-Performance Gear Lube - 5 Gallons

Sierra
18-9650-5
15.75 x 12.01 x 12.01 Inches
38.2 Pounds
  • Designer: Sierra

Ratings for Sierra (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
4Wheel Online 2,345
Wholesale Marine -
UnbeatableSale, Inc 1,011

Features

Protects gears, bearings and other gear case components
For use in high performance and high load operating conditions in both outboard and I/O lower units
Show More

Yamalube ACC-GEARL-UB-QT Marine Lower Unit Gearcase Lube (QUART)

Yamaha Motors

Ratings for Yamaha Motors (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PWC Parts -
Boat Parts Unlimited -

LubriMatic 11552 High Viscosity Lower Unit Gear Lube - 1 Quart

LubriMatic
11552
4.4 x 2.3 x 10.1 Inches
2.0 Pounds

Ratings for LubriMatic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
McCarty Motors 2,549

Features

Ideal For Modern Outboard And Stern Strive Lower Units
Meets Or Exceeds Api-Mt-1And Gl-5 Ratings
Show More

Lucas Oil 10652 Synthetic SAE 75W-90 M8 Marine Gear Oil - 1 Quart

Lucas Oil
LUC10652
4.0 x 4.0 x 12.0 Inches
2.03 Pounds

Ratings for Lucas Oil (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
G.P.S. 360
166 Auto Inc 2,746

Features

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.

Attwood 11891D7 Gear Lube Pump, for Use with 32-Ounce Gear Lube Bottle, Universal Fit, Includes 1 Yamaha Adapter

attwood
11891D7
1.38 x 5.87 x 11.1 Inches
1.0 Pounds

Ratings for attwood (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Universal fit to be used with the greatest number of engines
Fits nearly any outboard or sterndrive
Show More
Top 16

REV X Drive H 80w90 GL5 Outdrive & Lower Unit Gear Oil Lube (4 Pack)

REV X
4.0 x 10.0 x 7.5 Inches

Ratings for REV X (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Rev X Products, Inc. -

Features

YEAR LONG FLUID: In applications of less than 400 hp with proper fluid inspections, change fluid once a year.. In applications over 400 HP will last up to 5 times longer than conventional lubricants.
FOR USE IN: Evinrude, Force, Johnson, Mariner, Mercury, Mercruiser, Nissan, OMC, Suzuki, Volvo and Yamaha.
Show More

Suzuki Marine 990A0-01E81-01Q ECSTAR Hypoid Gear Oil SAE 90

Suzuki

Ratings for Suzuki (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Three Belles Marina Service -
Lancet Marine LLC -
Top 18

Shipmate Hi-Viscosity 80W90 Lower Unit Gear Lube Quart #1026-5055

Shipmate
1026-5055
2.0 Pounds

Ratings for Shipmate (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
BrandNewEngines, Inc 1,850

Features

SHIPMATE Hi-Viscosity 80W90 PLUS Lower Unit Gear Lube is formulated specifically for marine applications, and is ideal for modern mechanical shift outboard lower units and inboard/outboard stern drives.
Top 19

Johnson Evinrude OMC New OEM Gearcase Gear Lube, 0779758

Johnson/Evinrude/OMC/BRP
19.0 x 4.0 x 14.0 Inches

Ratings for Johnson/Evinrude/OMC/BRP (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
LEADERS RPM 3,884

Features

1 Gallon
Promotes long gearcase life in marine use, especially in severe duty applications.
Show More
Top 20

Yamalube ACC-GEARL-UB-10 Marine Lower Unit Gearcase Lube (EACH)

Yamaha Motors
0.625 Pounds

Ratings for Yamaha Motors (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Doug Russell Marine -
Kroll's Marine -

Features

Genuine OEM Yamaha Part
Recommended for Yamaha outboards and stern drives except V8, V6 VMAX SHO, and 2010 and newer V6 offshore models
Show More
Top 21

MERCURY Genuine Premium Gear Lube Qt. - 858058K01

Mercury Marine
7.62 x 8.75 x 9.87 Inches
2.0 Pounds

Ratings for Mercury Marine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
LEADERS RPM 3,884
AB MARINE PARTS -
Top 22

Premium Lower Unit Gear Lube (Sierra)

Sierra_47
12.0 x 15.75 x 12.0 Inches
38.5 Pounds

Ratings for Sierra_47 (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
sa retail inc -

Features

5 Gallon Pail

Lucas Oil 10652 Marine Gear Oil - 32 oz. (packaging may vary)

Lucas Oil
10652
3.3 x 3.3 x 11.6 Inches
1.0 Pounds

Ratings for Lucas Oil (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ZillaZon ✅🏆⭐Authorized -

Features

Fortified with anti-foaming agents to prevent cavitation at high RPM's
Safely blends with all other known gear oils and additives
Show More

Quicksilver 85W-90 Extreme Performance Gear Lube - 1 Qt.

Quicksilver
8M0111677

Ratings for Quicksilver (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Designed for outboard and sterndrive racing application.
Also for use in high‑performance gearcases used in marine, powersports, and motorsports applications.
Show More

OEM BRP Johnson Evinrude Premium Blend Gear Lubricant Quart 0775609

Johnson/Evinrude/OMC/BRP
8.0 x 7.0 x 8.0 Inches

Ratings for Johnson/Evinrude/OMC/BRP (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HARVARD MARINE 3,400

Features

Genuine OEM Factory Original Equipment Lower Unit & Sterndrive Gear Oil
For all Evinrude & Johnson Outboard Motors 1972 or prior with Electric Shift Lower Unit
Show More

Valvoline High Performance SAE 80W-90 Gear Oil 1 QT

Valvoline
VV831
3.38 x 3.38 x 11.6 Inches
0.0006 Pounds

Ratings for Valvoline (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Protects Against Severe Temperatures To Help Extend Service Life
Formulated With Extreme-Pressure Additives To Minimize Gear Wear From Shock Loads
Show More

Yamaha ACC-GEARL-UB-QT Gearcase Lube, 1 Quart

YAMAHA
8
8.0 x 6.0 x 4.0 Inches

Ratings for YAMAHA (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Big Country Powersports -
ALIKAYA -

Features

Defects in Workmanship 30 Days

Mercury Mercruiser OEM High Performance Gear Oil Quart 32oz. 92-858064K01

Mercury Marine Mercruiser
3.0 x 5.0 x 10.0 Inches

Ratings for Mercury Marine Mercruiser (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Boating Accessories -
LEADERS RPM 3,884
TX Parts LLC -
AB MARINE PARTS -
AvantiMotorSports -
PALMER POWER -

Features

Sold Individually
Sold Each
Show More

Top 10 Lower Unit Gear Oils - Verified to Buy (Apr. 2024)

Top 10 Lower Unit Gear Oils Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • Quicksilver
  • Mercury Marine/Mericruiser
  • STAR BRITE
  • Yamaha Motors
  • YAMAHA
  • Hardware & Outdoor
  • SIERRAMARINE
  • Mercury Marine
  • Sierra
  • LubriMatic

Related Lower Unit Gear Oils Guides

For more personalized Lower Unit Gear Oils guides, Check those pages,


Top 10 Lower Unit Gear Oils Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 G.P.S. 6,146 4.9
🥈 UnbeatableSale, Inc 3,132 4.7
🥉 BrandNewEngines, Inc 2,160 4.8
4 4Wheel Online 1,819 4.6
5 McCarty Motors 1,712 4.7
6 166 Auto Inc 1,616 4.9
7 HARVARD MARINE 1,388 4.4
8 LEADERS RPM 1,258 4.8
9 Aleksandra & Co. 1,128 4.8
10 Cyclemax 978 4.8
View or download top Lower Unit Gear Oils seller & rating report
G.P.S. [6146] UnbeatableSale, Inc [3132] BrandNewEngines, Inc [2160] 4Wheel Online [1819] McCarty Motors [1712] 166 Auto Inc [1616] HARVARD MARINE [1388] LEADERS RPM [1258] Aleksandra & Co. [1128] Cyclemax [978] G.P.S. 29% UnbeatableSale, Inc 15% BrandNewEngines, Inc 10% 4Wheel Online 9% McCarty Motors 8% 166 Auto Inc 8% HARVARD MARINE 7% LEADERS RPM 6% Aleksandra & Co. 5% Cyclemax 5%

[Get] Lower Unit Gear Oils Deals (✅Exclusively for Prime)

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When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

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Prime members also have access to other benefits, including 2-Day ShippingExclusive Member DealsPrime VideoBuy With PrimeAmazon MusicPrime Gaming, and more.

Shop Prime Lower Unit Gear Oils Deals

What does "Free Shipping" Mean?

"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.


Why Should You Trust Us?

Now hundreds and thousands of Oils & Fluids supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Lower Unit Gear Oils to buy for new December 2024?

CherryPicks’s Methodology for Evaluating Lower Unit Gear Oils

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Oils & Fluids items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 142 of Lower Unit Gear Oils reviews based on our selection criteria. It helped us shortlist the top qualified and rated Lower Unit Gear Oils for Oils & Fluids, We found that most customers choose Lower Unit Gear Oils with an average price of $43.43, and the top brands are YAMAHA, attwood, Lucas Oil, STAR BRITE, Quicksilver, Valvoline, LubriMatic, Hardware & Outdoor, REV X, Suzuki, Triax, Sierra, SIERRAMARINE, Sierra_47, Su Zuki, Yamaha Motors, Mercury Marine Mercruiser, Mercury Marine, Mercury Marine/Mericruiser, Johnson/Evinrude/OMC/BRP And Shipmate. 

Then our expert-level editors reviewed all those quality items and selected the top 28 Lower Unit Gear Oils for you, We have researched hundreds of sellers and picked the top sellers for Oils & Fluids, including G.P.S., UnbeatableSale, Inc, BrandNewEngines, Inc, 4Wheel Online, McCarty Motors, 166 Auto Inc, HARVARD MARINE, LEADERS RPM, Aleksandra & Co., Cyclemax, Jorgensen Powersports And TRIAX Lubricants LLC. The Quicksilver 858064Q01 SAE 90 High Performance G... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 4,906 consumers with an average rating of 4.8.

We've helped a lot of satisfied users get the right Automotive product based on their needs, and save lots of time for them to pick Lower Unit Gear Oils to buy.


Written By Paulo Santos Goncalves

Paulo S. Goncalves is a student of mechanical engineering with hands-on experience in automotive repair — a skill he picked up in his early days. He would be helping you make the best choice regarding automative parts and products here on this site.