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OEM Mercury Water-In-Fuel Sensor
Mercury Water-In-Fuel Sensor 8M0157779 For Verado, 450R, 500R, V10 & V12
The Mercury 8M0157779 water-in-fuel sensor is an OEM Mercury fuel system sensor used with compatible Mercury water-separating fuel filter assemblies.
This sensor fits select L6 Verado applications, Mercury Racing 450R and 500R V8 outboards, Mercury 350HP-425HP V10 outboards, and Mercury 500HP-600HP V12 outboards.
Compatible Applications
| Engine Family | Horsepower / Model | Engine Platform | Application |
|---|---|---|---|
| Mercury Verado | L6 Verado Models | Inline 6-Cylinder Verado | Water-in-fuel sensor |
| Mercury Racing | 450R, 500R | V8 FourStroke | Water-in-fuel sensor |
| Mercury Verado / FourStroke | 350HP-425HP | V10 FourStroke | Water-in-fuel sensor |
| Mercury Verado / SeaPro | 500HP-600HP | V12 FourStroke | Water-in-fuel sensor |
This Mercury 8M0157779 water-in-fuel sensor is used on select L6 Verado, 450R-500R V8 Racing, 350HP-425HP V10, and 500HP-600HP V12 outboard fuel filter applications.
Always verify your engine model, fuel filter assembly, and current sensor number before ordering.
Part Numbers & Cross References
| Brand / Source | Part Number |
|---|---|
| Mercury Marine | 8M0157779 |
| Related Fuel Filter | 8M0166596 |
Related Fuel Filter
Mercury Fuel Filter 8M0166596
OEM Mercury water-separating fuel filter used with this sensor on compatible 450R, 500R V8 and 500HP-600HP V12 applications.
View ProductWhat This Water-In-Fuel Sensor is Used For
The Mercury 8M0157779 water-in-fuel sensor monitors the fuel filter assembly for water accumulation and helps alert the operator when water is detected in the fuel system.
Water contamination can cause poor performance, corrosion, injector problems, and fuel system damage. Replacing a damaged or faulty water-in-fuel sensor helps maintain proper warning system function.
Key Features and Benefits
- OEM Mercury water-in-fuel sensor
- Fits select L6 Verado applications
- Fits Mercury Racing 450R and 500R V8 outboards
- Fits Mercury 350HP-425HP V10 outboards
- Fits Mercury 500HP-600HP V12 outboards
- Used with compatible Mercury water-separating fuel filter assemblies
- Helps detect water accumulation in the fuel system
- Pairs with Mercury fuel filter 8M0166596 on compatible applications
Part Details
- Part Number: 8M0157779
- Product Type: Water-In-Fuel Sensor
- Brand: Mercury Marine
- Application: Mercury Verado, Racing V8, V10, and V12 fuel systems
- Common Fitment: L6 Verado, 450R, 500R, 350-425HP V10, 500-600HP V12
- Related Fuel Filter: 8M0166596
- OEM Mercury Part: Yes
FAQ
What engines does Mercury 8M0157779 fit?
This sensor fits select L6 Verado applications, Mercury Racing 450R and
500R V8 outboards, Mercury 350HP-425HP V10 outboards, and Mercury
500HP-600HP V12 outboards.
Does this fit the Mercury 500R?
Yes. Mercury 8M0157779 is used on compatible Mercury Racing 500R V8
fuel filter applications.
Does this fit Mercury V10 outboards?
Yes. This sensor fits compatible Mercury 350HP-425HP V10 outboards.
What fuel filter goes with this sensor?
The related Mercury water-separating fuel filter is part number 8M0166596,
linked above.
What does a water-in-fuel sensor do?
It detects water accumulation in the fuel filter assembly so the engine
warning system can alert the operator to fuel contamination.
Is this a genuine Mercury part?
Yes. This is an OEM Mercury Marine water-in-fuel sensor.
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.
- Electrical sensors must be new, unused, and uninstalled.
- Installed or fuel-contaminated sensors are not returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0157779, Mercury 8M0157779, Mercury water in fuel sensor, Mercury water-in-fuel sensor, Mercury fuel filter sensor, Mercury Verado fuel sensor, L6 Verado water in fuel sensor, Mercury 450R water in fuel sensor, Mercury 500R water in fuel sensor, Mercury Racing fuel sensor, Mercury V8 water in fuel sensor, Mercury V10 water in fuel sensor, Mercury V12 water in fuel sensor, Mercury 350HP V10 fuel sensor, Mercury 400HP V10 fuel sensor, Mercury 425HP V10 fuel sensor, Mercury 500HP V12 fuel sensor, Mercury 600HP V12 fuel sensor, 8M0166596, Mercury water separating fuel filter sensor
OEM Mercury Racing 500R Thermostat Assembly
Mercury Thermostat Assembly 8M0210477 For 500R V8 Outboards
The Mercury 8M0210477 thermostat assembly is a genuine OEM Mercury Racing cooling system component used on Mercury Racing 500R 4.6L V8 FourStroke outboards.
This thermostat helps maintain proper engine operating temperature by regulating coolant flow through the engine cooling system. Replacing a worn or sticking thermostat helps maintain performance, fuel efficiency, and cooling system reliability.
Compatible Applications
| Engine Family | Horsepower | Engine Platform | Serial Number Range |
|---|---|---|---|
| Mercury Racing | 500R | 4.6L V8 FourStroke | 1E099432 & Newer |
Mercury thermostat assembly 8M0210477 fits Mercury Racing 500R 4.6L V8 FourStroke outboards with serial numbers 1E099432 and newer.
Always verify your engine serial number before ordering cooling system components.
Related Intake Hose Clamp
Mercury recommends replacing damaged hose clamps during cooling system service. The intake hose clamp kit below is commonly serviced along with thermostat-related repairs.
Mercury Intake Hose Clamp Kit
OEM Mercury clamp kit 888988008. Includes two intake hose clamps commonly serviced during cooling system maintenance and thermostat replacement.
View ProductOEM Part Numbers
| Brand | Part Number |
|---|---|
| Mercury Marine | 8M0210477 |
What This Thermostat Does
The thermostat regulates engine operating temperature by controlling the flow of cooling water through the engine.
A properly functioning thermostat helps the engine reach and maintain the correct operating temperature while protecting internal components from overheating.
Thermostats are commonly inspected and replaced during major scheduled maintenance intervals on high-performance Mercury Racing engines.
Key Features and Benefits
- Genuine OEM Mercury Racing thermostat assembly
- Fits Mercury Racing 500R 4.6L V8 outboards
- Fits serial number 1E099432 and newer
- 160° thermostat assembly
- Helps maintain proper engine operating temperature
- Supports cooling system efficiency and reliability
- Direct OEM replacement part
- Used during scheduled cooling system maintenance
Part Details
- Part Number: 8M0210477
- Product Type: Thermostat Assembly
- Brand: Mercury Marine
- Application: Mercury Racing 500R
- Engine: 4.6L V8 FourStroke
- Serial Range: 1E099432 & Newer
- OEM Mercury Part: Yes
FAQ
What engine does Mercury thermostat 8M0210477 fit?
This thermostat fits Mercury Racing 500R 4.6L V8 FourStroke outboards
with serial numbers 1E099432 and newer.
How many thermostats does a Mercury 500R use?
Mercury 500R engines using this application require one thermostat assembly.
What does a thermostat do?
The thermostat regulates engine operating temperature by controlling
cooling water flow through the engine.
Should I replace hose clamps during cooling system service?
Inspect hose clamps whenever servicing the cooling system. Replace damaged
or corroded clamps as needed.
Is this a genuine Mercury part?
Yes. This is an OEM Mercury Marine thermostat assembly.
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.
- Parts must be new, unused, and in original packaging.
- Installed cooling system components are not returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0210477, Mercury 8M0210477, Mercury thermostat assembly, Mercury 500R thermostat, Mercury Racing thermostat, Mercury 500R cooling system, Mercury 500R thermostat replacement, Mercury 500R V8 thermostat, Mercury Racing 500R cooling parts, Mercury Racing cooling system, Mercury thermostat 1E099432, Mercury 500R maintenance, Mercury cooling system service, 888988008, Mercury intake hose clamp, Mercury thermostat housing, Mercury OEM thermostat
Fits Mercury 500R 4.6L V8 Supercharged Verado Outboards
Designed specifically for Mercury 500R 4.6L V8 supercharged Verado engines. The 8M0210486 Supercharger Belt is an OEM replacement belt used in the supercharger drive system. This belt is critical for maintaining proper boost pressure and ensuring peak engine performance.
Compatibility
This supercharger belt is used exclusively on Mercury 500R 4.6L V8 supercharged Verado outboards. It is part of the supercharger drive system and is essential for proper engine operation.
Application Chart
| Brand | Engine Model | Displacement | Engine Type | Component |
|---|---|---|---|---|
| Mercury Racing | 500R Verado | 4.6L V8 | Supercharged 4-Stroke | Supercharger Drive Belt |
Always confirm compatibility using your engine serial number and existing belt part number before ordering.
Part Numbers & Cross References
| Reference Type | Part Number |
|---|---|
| OEM / Pro Marine Part | 8M0210486 |
What This Part Is Used For
The supercharger belt drives the supercharger system, which compresses incoming air to increase engine power output. In the Mercury 500R platform, this system is critical for achieving the engine’s high-performance output.
Over time, belts can wear due to heat, load, and continuous operation. Replacing the belt as part of routine maintenance helps prevent loss of boost, reduced performance, or unexpected failure.
Frequently Asked Questions
What engines does this belt fit?
This belt fits Mercury Racing 500R 4.6L V8 supercharged Verado outboards only.
Is this used on standard Verado models?
No. This belt is specific to the supercharged 500R platform and does not fit standard Verado engines.
What does the supercharger belt do?
It drives the supercharger, which provides boost pressure and increased engine performance.
When should this belt be replaced?
It should be inspected regularly and replaced when signs of wear such as cracking, fraying, or slipping are present.
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, or FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical ground delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- 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 Part Numbers
Part Number: 8M0210486
Common Search Terms: Mercury 500R supercharger belt, Verado 500R belt, 4.6L V8 supercharger belt, marine supercharger drive belt
861590A05
861590A1
861590A2
87108
Mercury / MerCruiser Oil Change Service
Mercury / MerCruiser Oil Drain Hose Kit 865277A02
The 865277A02 Oil Drain Hose Kit is a Mercury / MerCruiser replacement oil drain hose kit used to make oil changes easier on many GM-based MerCruiser engines. This kit attaches at the oil pan drain location and allows the hose to be routed for easier draining in tight engine compartments.
This kit supersedes older Mercury part number 863142A3 and is commonly used on 1983 and newer MerCruiser GM 4-cylinder, V6, and V8 engines. Always verify by engine model, serial number, and existing drain setup before ordering.
Compatible Applications
| Brand | Engine Model | Displacement | Serial Range |
|---|---|---|---|
| MerCruiser | MCM 2.5L | 153 CID | 6229718 and newer |
| MerCruiser | MCM 3.0L | 181 CID | 6229718 and newer |
| MerCruiser | MCM 3.75L | 229 CID | Select ranges including 6330183-6919655 |
| MerCruiser | MCM 4.3L | 262 CID V6 | 0A331455-0F802999 |
| MerCruiser | MCM 5.0L | 305 CID V8 | 6218462-0F600999 |
| MerCruiser | MCM 5.7L | 350 CID V8 | 6218462-0F600999 |
| MerCruiser | MCM 7.4L | 454 CID V8 | 6083145-0F800699 |
| MerCruiser | MCM 8.2L | 502 CID V8 | 0C878221-0F802599 |
Important Fitment Note
This oil drain hose kit fits many GM-based MerCruiser engines, but oil pan style, drain location, and engine configuration can vary. Confirm fitment using your engine serial number and compare your existing oil drain setup before ordering.
OEM & Cross Reference Numbers
| Mercury / MerCruiser Part | 865277A02 |
|---|---|
| Supersedes | 863142A3 |
| Product Type | Oil drain hose kit |
| Common Thread | SAE 1/2"-20 connection |
What This Part Is Used For
This oil drain hose kit is used to make engine oil changes easier on MerCruiser inboard and sterndrive engines. Instead of trying to remove the drain plug in a tight bilge area, the hose can be routed to a more accessible location for draining.
It is especially useful on engines where access to the oil pan drain plug is limited. Replacing a damaged, missing, or aged drain hose helps keep oil changes cleaner and more convenient.
Key Features and Benefits
- Mercury / MerCruiser oil drain hose kit for easier oil changes.
- Current replacement part number 865277A02.
- Supersedes older Mercury part number 863142A3.
- Used on many GM-based MerCruiser 4-cylinder, V6, and V8 engines.
- Helps route oil drainage to a more accessible location.
- Commonly used on Alpha, Bravo, and inboard applications where specified.
FAQ
What is 865277A02?
865277A02 is a Mercury / MerCruiser oil drain hose kit used to simplify oil changes on many GM-based MerCruiser engines.
Does 865277A02 replace 863142A3?
Yes. 865277A02 is the current superseding part number for older Mercury oil drain hose kit 863142A3.
What engines does this oil drain hose kit fit?
It fits many MerCruiser GM-based 2.5L, 3.0L, 3.75L, 4.3L, 5.0L, 5.7L, 7.4L, and 8.2L engines. Always confirm by serial number.
Why install an oil drain hose kit?
It makes oil changes cleaner and easier by allowing oil to drain through a hose instead of removing the drain plug in a tight engine compartment.
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.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
MerCruiser oil drain hose kit, Mercury oil drain hose, MCM oil drain hose, MerCruiser 4.3 oil drain hose, MerCruiser 5.7 oil drain hose, GM marine oil drain kit.
Searchable Part Numbers
865277A02, 863142A3
865277A02
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
3442112
5265512
6324212
6862312
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
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8M0205954