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OEM Mercury Premium Gear Lube
SAE 80W90 Marine Gearcase Lubricant
Mercury Premium Gear Lube 80W90 is engineered to protect marine lower units and sterndrives against wear, corrosion, foaming, and water contamination.
Mercury part number 858058K01 is designed for recreational marine applications requiring SAE 80W90 marine gear lubricant protection.
Compatible Applications
| Application | System Type | Use | Notes |
|---|---|---|---|
| Mercury Outboards | Lower Unit / Gearcase | Gear Lubrication | For compatible recreational outboard applications |
| Mercury Sterndrives | Sterndrive Lower Unit | Gear Lubrication | Compatible with many MerCruiser applications |
| Mariner Outboards | Gearcase | Gear Protection | Select compatible lower units |
| Marine Lower Units | Hypoid Gear Systems | Lubrication & Wear Protection | SAE 80W90 marine gear oil applications |
For racing, surfacing propeller, high-horsepower, or extreme-duty gearcase applications, Mercury also offers Extreme Performance 85W90 Gear Lube.
View Mercury Extreme Performance Gear Lube 85W90
OEM Part Numbers & Product Information
| Type | Details |
|---|---|
| Mercury Part Number | 858058K01 |
| Product Type | Premium Marine Gear Lube |
| Viscosity | SAE 80W90 |
| Container Size | 1 Quart |
| Brand | Mercury Marine |
What This Gear Lube is Used For
Mercury Premium Gear Lube is used to lubricate and protect marine lower units and sterndrives operating in freshwater and saltwater boating environments.
Marine gearcases operate under heavy load and elevated temperatures, making proper lubrication critical for protecting gears, bearings, shafts, and seals from wear and premature damage.
This SAE 80W90 marine lubricant helps reduce friction, resist foaming, minimize corrosion, and provide protection against water intrusion contamination.
Routine lower unit lubricant changes are an important part of preventive marine maintenance and help extend gearcase service life.
Key Features and Benefits
- OEM Mercury Premium Gear Lube
- SAE 80W90 marine gear lubricant
- Designed for Mercury outboards and sterndrives
- Helps protect gears and bearings against wear
- Excellent rust and corrosion protection
- Helps resist foaming and lubricant breakdown
- Provides protection against water contamination
- Ideal for recreational marine lower unit applications
Gear Lube Details
- Brand: Mercury Marine
- Part Number: 858058K01
- Product Type: Premium Marine Gear Lubricant
- Viscosity: SAE 80W90
- Container Size: 1 Quart
- Use: Lower Unit & Sterndrive Lubrication
- Applications: Mercury & Mariner Marine Gearcases
- Environment: Freshwater & Saltwater
FAQ
What is Mercury Premium Gear Lube used for?
This lubricant is used in marine lower units and sterndrives to protect gears, bearings, and internal gearcase components.
What viscosity is this gear lube?
This is SAE 80W90 marine gear lubricant.
When should Mercury Extreme Performance Gear Lube be used instead?
Mercury Extreme Performance Gear Lube is intended for racing, surfacing propeller, and high-performance gearcase applications operating under extreme load and temperature conditions.
Can this be used in saltwater applications?
Yes. Mercury Premium Gear Lube is formulated for both freshwater and saltwater marine environments.
When should lower unit lubricant be changed?
Mercury recommends regular lower unit service intervals as part of routine preventive maintenance.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Lubricants and chemicals must remain unopened and unused for return eligibility.
- Items must be in original packaging and resalable condition.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
858058K01, Mercury gear lube, Mercury Premium Gear Lube, Mercury 80W90, Mercury lower unit oil, Mercury marine gear oil, Mercury sterndrive gear lube, SAE 80W90 marine lubricant, Mercury outboard gear oil, Mercury lower unit lubricant, marine gearcase oil, Mercury gearcase lubricant, Mercury Extreme Performance Gear Lube, Mercury racing gear oil
19007A12
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75601A12
7560112
802846A1
802846Q1
858058KC1
858058K01
858058QB1
858058QC1
858058Q01
883661A1
883672A1
9-82401
OEM Mercury Aluminum Anode Kit
Mercury 8M0205955 Anode Kit for Verado AMS and V8 Racing Outboards
The Mercury 8M0205955 Aluminum Anode Kit helps protect compatible Mercury outboards from the harmful effects of galvanic corrosion.
This OEM Mercury kit fits select Mercury 4.6L V8 Verado AMS (Advanced Midsection) outboards and Mercury V8 Racing outboards. It includes the square plate, trim anodes, trim manifold aluminum anodes, and installation hardware.
Compatible Applications
| Engine Family | Horsepower | Midsection / System | Application Notes |
|---|---|---|---|
| Mercury 4.6L V8 Verado | 250HP-300HP | AMS / Advanced Midsection | Fits compatible Verado AMS outboard applications |
| Mercury V8 Racing | 250R / 300R | AMS / Advanced Midsection | Fits compatible Mercury Racing outboard applications |
AMS stands for Advanced Midsection. Always verify your engine model, serial number, and existing anode configuration before ordering corrosion protection components.
What is Included
- Square plate aluminum anode
- Trim aluminum anodes
- Trim manifold aluminum anodes
- Installation hardware
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| Mercury OEM | 8M0205955 |
| Application | Aluminum Anode Kit |
| System | Corrosion Protection / Trim System |
Complete Your Service
100 Hour Service Kit With Oil
Mercury 100-hour service kit with oil for compatible 150HP-300HP V6 and V8 FourStroke outboards.
View / Add to Cart
100 Hour Service Kit Without Oil
OEM Mercury 100-hour service kit for compatible 150HP-300HP V6 and V8 FourStroke outboards. Oil sold separately.
View / Add to Cart
Mercury V6 / V8 Oil Change Kit
Mercury 10W30 synthetic blend oil change kit for compatible 3.4L V6 and 4.6L V8 FourStroke outboards.
View / Add to Cart
300 Hour Service Kit
OEM Mercury 300-hour maintenance service kit for compatible Mercury V8 FourStroke outboards.
View / Add to CartWhat This Anode Kit is Used For
This Mercury aluminum anode kit helps protect compatible Verado AMS and Mercury Racing outboards from galvanic corrosion in marine environments.
Anodes are sacrificial components designed to corrode before more critical aluminum and metal components of the outboard are damaged.
Worn or missing anodes may reduce corrosion protection and can lead to premature corrosion on trim systems, brackets, and submerged outboard components.
Replacing anodes during regular maintenance service helps maintain long-term corrosion protection and outboard reliability.
Key Features and Benefits
- Genuine OEM Mercury aluminum anode kit
- Mercury part number 8M0205955
- Fits Mercury 4.6L V8 Verado AMS 250-300HP outboards
- Fits Mercury V8 Racing 250R and 300R outboards
- Helps protect against galvanic corrosion
- Includes square plate, trim, and trim manifold aluminum anodes
- Includes installation hardware
- Easy installation using common tools
- OEM Mercury fit, function, and performance
Anode Kit Details
- Brand: Mercury / Quicksilver
- Part Number: 8M0205955
- Part Type: Aluminum Anode Kit
- Material: Aluminum
- Application: Mercury 4.6L V8 Verado AMS and Mercury V8 Racing Outboards
- Horsepower Range: 250HP-300HP / 250R-300R
- System: Corrosion Protection
- Quantity Sold: Kit
FAQ
What does Mercury 8M0205955 fit?
This anode kit fits compatible Mercury 4.6L V8 Verado AMS 250HP-300HP outboards and Mercury V8 Racing 250R and 300R outboards.
What does AMS mean?
AMS stands for Advanced Midsection. This kit is for compatible AMS-style Mercury Verado and Racing applications listed above.
What is included in this kit?
The kit includes the square plate, trim anodes, trim manifold aluminum anodes, and installation hardware.
What do anodes do?
Anodes help protect submerged outboard components from galvanic corrosion by sacrificing themselves before more critical metal parts corrode.
When should anodes be replaced?
Anodes should be inspected regularly and replaced when worn, heavily corroded, or missing material.
Can I install this kit myself?
Mercury states this kit is easy to install with existing hardware and common tools.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Corrosion protection parts should be installed only after confirming correct fitment.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0205955, Mercury Verado AMS anode kit, Mercury V8 Racing anode kit, Mercury 4.6L V8 anodes, Mercury 250R anode kit, Mercury 300R anode kit, Mercury aluminum anodes, Mercury corrosion protection, Mercury Advanced Midsection anodes, Mercury AMS anode kit, Mercury trim anodes, Mercury trim manifold anodes, Mercury 250HP Verado anodes, Mercury 300HP Verado anodes, galvanic corrosion protection
8M0205956
OEM Mercury Aluminum Anode Kit
Mercury 8M0205953 Anode Kit for CMS Midsection Outboards
The Mercury 8M0205953 Aluminum Anode Kit helps protect compatible Mercury outboards from the harmful effects of galvanic corrosion.
This OEM Mercury kit fits select Mercury 3.4L V6, 4.6L V8 CMS (Conventional MidSection), and Mercury Racing outboards. The kit includes the square plate, trim anodes, trim manifold aluminum anodes, and installation hardware.
Compatible Applications
| Engine Family | Horsepower | Midsection / System | Application Notes |
|---|---|---|---|
| Mercury 3.4L V6 | 175HP-225HP | CMS / Conventional MidSection | Fits compatible Mercury CMS outboard applications |
| Mercury 4.6L V8 | 225HP-300HP | CMS / Conventional MidSection | Fits compatible Mercury CMS outboard applications |
| Mercury Racing | 150R / 250R / 300R | Racing Midsection | Fits compatible Mercury Racing outboards |
CMS stands for Conventional MidSection. Always verify your engine model, serial number, and existing anode configuration before ordering corrosion protection components.
What is Included
- Square plate aluminum anode
- Trim aluminum anodes
- Trim manifold aluminum anodes
- Installation hardware
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| Mercury OEM | 8M0205953 |
| Application | Aluminum Anode Kit |
| System | Corrosion Protection / Trim System |
Complete Your Service
100 Hour Service Kit With Oil
Complete Mercury 100-hour service kit with oil for compatible V6 and V8 FourStroke outboards.
View / Add to Cart
100 Hour Service Kit Without Oil
OEM Mercury 100-hour service kit for compatible V6 and V8 FourStroke outboards.
View / Add to Cart
Mercury Oil Change Kit
Mercury 10W30 synthetic blend oil change kit for compatible 3.4L V6 and 4.6L V8 FourStroke outboards.
View / Add to Cart
300 Hour Service Kit
OEM Mercury 300-hour maintenance service kit for compatible V6 FourStroke outboards.
View / Add to Cart
300 Hour V8 Service Kit
OEM Mercury 300-hour maintenance service kit for compatible 4.6L V8 FourStroke outboards.
View / Add to Cart
300 Hour V6 Kit With Oil
Complete 300-hour Mercury V6 service kit including engine oil.
View / Add to Cart
300 Hour V8 Kit With Oil
Complete 300-hour Mercury V8 service kit including engine oil.
View / Add to CartWhat This Anode Kit is Used For
This Mercury aluminum anode kit helps protect compatible Mercury CMS and Racing outboards from galvanic corrosion in marine environments.
Anodes are sacrificial components designed to corrode before more critical aluminum and metal components of the outboard are damaged.
Replacing worn anodes during regular maintenance helps maintain proper corrosion protection and long-term outboard reliability.
Key Features and Benefits
- Genuine OEM Mercury aluminum anode kit
- Mercury part number 8M0205953
- Fits Mercury 3.4L V6 CMS 175-225HP outboards
- Fits Mercury 4.6L V8 CMS 225-300HP outboards
- Fits Mercury Racing 150R, 250R, and 300R outboards
- Helps protect against galvanic corrosion
- Includes square plate, trim, and trim manifold aluminum anodes
- Includes installation hardware
- Easy installation using common tools
- OEM Mercury fit, function, and performance
Anode Kit Details
- Brand: Mercury / Quicksilver
- Part Number: 8M0205953
- Part Type: Aluminum Anode Kit
- Material: Aluminum
- Application: Mercury CMS and Racing Outboards
- Horsepower Range: 175HP-300HP / 150R-300R
- System: Corrosion Protection
- Quantity Sold: Kit
FAQ
What does Mercury 8M0205953 fit?
This anode kit fits Mercury 3.4L V6 175-225HP CMS, 4.6L V8 225-300HP CMS, and Mercury Racing 150R, 250R, and 300R outboards.
What does CMS mean?
CMS stands for Conventional MidSection and refers to Mercury outboards using the standard midsection design.
What is included in this kit?
The kit includes the square plate, trim anodes, trim manifold aluminum anodes, and installation hardware.
What do anodes do?
Anodes help protect submerged outboard components from galvanic corrosion by sacrificing themselves before more critical metal parts corrode.
When should anodes be replaced?
Anodes should be inspected regularly and replaced when worn, heavily corroded, or missing material.
Can I install this kit myself?
Mercury states this kit is easy to install with existing hardware and common tools.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Corrosion protection parts should be installed only after confirming correct fitment.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0205953, Mercury CMS anode kit, Mercury V6 anode kit, Mercury V8 anode kit, Mercury Racing anodes, Mercury 150R anode kit, Mercury 250R anode kit, Mercury 300R anode kit, Mercury aluminum anodes, Mercury corrosion protection, Mercury Conventional MidSection anodes, Mercury CMS anode kit, Mercury trim anodes, Mercury trim manifold anodes, galvanic corrosion protection
8M0205954
8M0162139
8M0153722
881695001
