---
product_id: 13632916
title: "80W-90 Premium Gear Lube for Outboards and Sterndrives, 1 Quart 858058K01"
brand: "mercury"
price: "$71.77"
currency: USD
in_stock: true
reviews_count: 9
category: "Mercury"
url: https://www.desertcart.us/products/13632916-80w-90-premium-gear-lube-for-outboards-and-sterndrives-1
store_origin: US
region: United States of America
---

# Water-Resistant Emulsifiers 80W-90 SAE Grade Viscosity Corrosion & Wear Protection 80W-90 Premium Gear Lube for Outboards and Sterndrives, 1 Quart 858058K01

**Brand:** mercury
**Price:** $71.77
**Availability:** ✅ In Stock

## Summary

> 🛥️ Keep your marine engine running smooth — because your boat deserves premium care!

## Quick Answers

- **What is this?** 80W-90 Premium Gear Lube for Outboards and Sterndrives, 1 Quart 858058K01 by mercury
- **How much does it cost?** $71.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/13632916-80w-90-premium-gear-lube-for-outboards-and-sterndrives-1)

## Best For

- mercury enthusiasts

## Why This Product

- Trusted mercury brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Water-Resistant Formula:** Improved emulsifiers safeguard performance if water enters the gear housing.
- • **Trusted by Professionals:** Backed by decades of engineering expertise and a 4.8-star rating from 127 users.
- • **Ultimate Corrosion Defense:** Advanced additives shield gears from rust and wear even in harsh saltwater environments.
- • **OEM-Grade Quality Assurance:** Manufactured to Mercury Marine’s exacting standards for trusted reliability.
- • **Precision Marine Protection:** Formulated specifically for outboards under 75hp to maximize gear longevity.

## Overview

Mercury 80W-90 Premium Gear Lube is a synthetic-mineral blend designed for outboard engines below 75hp. It offers superior protection against corrosion and wear, enhanced water resistance, and meets stringent OEM specifications from Mercury Marine, ensuring optimal gearcase performance and longevity in marine environments.

## Description

Protect your investment and keep your engine performing smoothly with Mercury Premium Gear Lube 858058K01. It's recommended for use in the gearcase or lower unit of any outboard below 75hp. Specially formulated for marine applications, Premium Gear Lube helps prevent wear and corrosion even in the presence of water.

Review: It's lube what else can i say - Good oil
Review: Prefect - It is the right stuff to keep your motor happy

## Features

- Formulated to protect against corrosion and excessive wear
- Designed for outboard applications below 75hp
- Improved emulsifiers protect gears should water enter the gear housing
- 1 Quart
- Produced by Mercury Marine to our stringent original equipment manufacturer specifications
- Mercury oils, lubricants and engine care products are backed by decades of experience in engineering, testing and manufacturing to provide the best protection and performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001QFDH44 |
| Best Sellers Rank | #105,710 in Automotive ( See Top 100 in Automotive ) #133 in Gear Oils |
| Brand | MERCURY |
| Brand Name | MERCURY |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 127 Reviews |
| Global Trade Identification Number | 00745061030008 |
| Included Components | Gear Oil |
| Item Form | Oil |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Mercury Marine/Mercruiser |
| Material | Synthetic , Mineral Oil |
| Model Number | 858058K01 |
| Number of Items | 1 |
| Package Information | Bottle |
| Part Number | 858058K01 |
| Recommended Uses For Product | Marine |
| Specific Uses For Product | Marine outboard engines below 75 horsepower |
| UPC | 745061030008 |
| Unit Count | 32 Fluid Ounces |
| Viscosity | 80W-90 SAE Grade |

## Product Details

- **Brand:** MERCURY
- **Liquid Volume:** 32 Fluid Ounces
- **Material:** Synthetic
- **Package Information:** Bottle
- **Viscosity:** 80W-90 SAE Grade

## Images

![80W-90 Premium Gear Lube for Outboards and Sterndrives, 1 Quart 858058K01 - Image 1](https://m.media-amazon.com/images/I/511f45NnVfL.jpg)

## Questions & Answers

**Q: Is this oil synthetic oil?**
A: Good afternoon, yes it is
Thanks 
AB Marine

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's lube what else can i say
*by J***A on August 15, 2025*

Good oil

### ⭐⭐⭐⭐⭐ Prefect
*by T***R on June 4, 2025*

It is the right stuff to keep your motor happy

### ⭐⭐⭐⭐⭐ Great pricing
*by C***E on May 24, 2025*

Perfect for my boat motor. Great pricing.

## Frequently Bought Together

- OEM Mercury Marine Precision Premium SAE 80W90 Gear Lube 32oz.
- Mercury 25w-40 OEM Oil Change & Filter Kit 40-50-60hp Four Stroke Outboard 8M0081916
- Gearcase Drain Plug Seal 6 Pack for Mercury Marine/Mercruiser Drives

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**Shop now:** [https://www.desertcart.us/products/13632916-80w-90-premium-gear-lube-for-outboards-and-sterndrives-1](https://www.desertcart.us/products/13632916-80w-90-premium-gear-lube-for-outboards-and-sterndrives-1)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-07*