Best Lower Unit Oil For Mercury Outboard

Peter | 16-05-2025

If you aren’t someone who makes frequent purchases, selecting the best Best Lower Unit Oil For Mercury Outboard won’t be an easy chore for you. However, you shouldn’t be concerned because we have provided you with the most comprehensive list possible of the top Best Lower Unit Oil For Mercury Outboard. Have a look at the products on our list, and pick the ones that appeal to you the most.

We researched and tested Best Lower Unit Oil For Mercury Outboard in the market to get you this list. Our most recommended product is Quicksilver Best Lower Unit Oil For Mercury Outboard. Check out our picks for all of our favorites, and be sure to read our buying guide to get all the information you need to make the best choice!

Editor's Choice
Quicksilver by Mercury Marine 80W-90 Premium Gear Lube, Marine Engine, 32 oz.
Quicksilver by Mercury Marine 80W-90 Premium Gear Lube, Marine Engine, 32 oz.
Premium Pick
OEM Mercury Marine Precision Premium SAE 80W90 Gear Lube 32oz.
OEM Mercury Marine Precision Premium SAE 80W90 Gear Lube 32oz.
Budget Pick
Slippery Pete - Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel,
Slippery Pete - Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel,

Top 10 Best Lower Unit Oil For Mercury Outboard

We researched and compared the top products in the Best Lower Unit Oil For Mercury Outboard category to provide you with these recommendations.

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

Quicksilver 858064Q01 SAE 90 High Performance Gear Lube , 32 oz
7.7

Quicksilver

Check Price On Amazon
  • Lower unit gear oil formulated to protect against corrosion and excessive wear
  • Designed for outboard motor lower unit and sterndrive applications above 75 HP
  • Extreme pressure synthetic additives protect gears from metal to metal contact
  • Extends gear life in extreme conditions including high-speed and high-horspower applications
  • SAE 90 viscosity
  • 1 quart bottle
  • Manufacturer part number 858064Q01

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

Mercury Marine New OEM High Performance Gear Lube with Hand Pump, 91-8M0101435
8.5

Mercury

Check Price On Amazon
  • 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
  • Extreme pressure synthetic additives protect gears from metal to metal contact
  • Engineered to provide maximum protection for sterndrive and outboard lower units
  • For use in most gear housings of Mercruiser sterndrives and all Mercury, Mariner, and Force Outboards

3. Slippery Pete - Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel,

Slippery Pete - Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel,
8.7

Slippery Pete

Check Price On Amazon
  • 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

4. Quicksilver by Mercury Marine 80W-90 Premium Gear Lube, Marine Engine, 32 oz.

Quicksilver by Mercury Marine 80W-90 Premium Gear Lube, Marine Engine, 32 oz.
9.1

Quicksilver

Check Price On Amazon
  • Direct replacement for Mercury Marine 858058K01
  • 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 gear case or lower unit
  • Recommended for use in outboard motor gear cases and marine lower units in applications below 75hp
  • 80W-90 viscosity
  • 32 oz. bottle (pack of 6)
  • Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your engine

5. OEM Mercury Marine Precision Premium SAE 80W90 Gear Lube 32oz.

OEM Mercury Marine Precision Premium SAE 80W90 Gear Lube 32oz.
8.9

Mercury

Check Price On Amazon

6. STAR BRITE High Viscosity Lower Unit Gear Lube 80w 90w - 32 OZ (027032)

STAR BRITE High Viscosity Lower Unit Gear Lube 80w 90w - 32 OZ (027032)
8.3

Star Brite

Check Price On Amazon
  • Recommended for use in Mercury, Mercruiser, Johnson, Evinrude, OMC, Force, Mariner, Nissan, Suzuki, Yamaha and Volvo Will not void manufacturers warranties
  • Formulated with special anti-wear additives, rust and corrosion inhibitors.
  • For lower units of all outboard motors and stern drives.

7. Upgrade Lower Unit Gear Oil Pump for Standard Quart Bottles, Come with 3/8in 8mm 10mm Metal

Upgrade Lower Unit Gear Oil Pump for Standard Quart Bottles, Come with 3/8in 8mm 10mm Metal
8.3

Yoursme

Check Price On Amazon
  • Fit all tall or short Quart Bottles, perfectly used on 32 ounce (946 ml) Gear Lube Bottle.
  • 3/8"16 Swivel adapter fits for all Mercury and Mariner Outboard Motors and other American made outboards.
  • 8mm-1.25 Male adapter and 10mm-1.25 male adapter fits for Yamaha Nissan Tohatso Honda Johnson Evinrude and many other foreign made outboards. (All adapter will not fit for Volvo Penta)
  • Upgrade Metal adapters! All the adapters are made of strengthen steel with zinc plated. Skip the plastic made adapters and use this ultimate kit, they are great to reuse for many times.
  • Comes with 2 suction tubes which can reach the bottle bottom of tall and short gear oil bottles. 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 12 month warranty.

8. SeaSierra Marine Lower Unit Gear Lube Oil Pump for Mercury Yamaha Honda Suzuki Outboard and

SeaSierra Marine Lower Unit Gear Lube Oil Pump for Mercury Yamaha Honda Suzuki Outboard and
8

Seasierra

Check Price On Amazon
  • The Manual Oil Pump Transfer Gearcase lube, Transmission and Differential Fluids on Boat Engine
  • The 3/8 Swivel Adapter Fits most Mercury Mercuriser marine engines and most American outboards
  • The 8mm and 10mm Metal Adapter is suitable for outboards in other countries, such as Yamaha Honda Suzuki
  • Package Include: 3/8" Swivel Adapter, 8mm Metal Adapter, 10mm Metal Adapter, Rigid Suction Tubes(13cm, 15cm), Cap Adapter, Flexible Clear Fill Tube, Drain Gasket
  • Metal Adapters: All adapters are made of galvanized reinforced steel. Skip the plastic adapters and use this metal kit, they can be reused many times

9. Mercury SAE 90 High Performance Gear Lube

Mercury SAE 90 High Performance Gear Lube
7.9

Mercury

Check Price On Amazon
  • 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
  • Extreme pressure synthetic additives protect gears from metal to metal contact
  • Engineered to provide maximum protection for sterndrive and outboard lower units
  • For use in most gear housings of Mercruiser sterndrives and all Mercury, Mariner, and Force Outboards

10. Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel, 8mm and 10mm

Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel, 8mm and 10mm
7.7

Bentolin

Check Price On Amazon
  • Widely ApplicationCome with 3/8"16 Swivel adapter fits for all Mercury and Mariner Outboard Motors and other American made outboards, 8mm-1.25 Male adapter and 10mm-1.25 male adapter fits for Yamaha Nissan Tohatso Honda Johnson Evinrude and many other foreign made outboards. (All adapter will not fit for Volvo Penta)
  • Warm NoteThe pump's cap adapter will only fit standard quart bottles with a 28mm (1.125") opening
  • Easy to useComes with 2 suction tubes ,which can reach the bottle bottom of tall and short gear oil bottles. 8 cc stable current per stroke. Can fit all tall or short quart bottles,depending on the height of the quart bottle,perfectly used on 32 ounce (946 ml) gear lube bottle
  • Material CompositionThe lower unit gear oil pump incorporates high-quality components, including reliable plastic, rubber, steel, and aluminum alloy. All the adapters are made of strengthen steel with zinc plated.This composition ensures resistance to wear and tear while maintaining a strong seal. Can be reuse for many times
  • Improve work efficiencyThe handy fluid quart pump screwed on the bottle easily. Could easily control the amount of fluid being pumped and not worry about over filling

Peter

Related Posts