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Home  >  Outboard  >  Mercury Outboard  >  Lower Unit Components | Mercury Outboard  >  Lower Unit Anodes | Mercury Outboard  > Mercury CMS Aluminum Anode Kit V6 V8 & Racing 150R-300R

Mercury CMS Aluminum Anode Kit V6 V8 & Racing 150R-300R

OEM 8M0205953 Anode Kit for CMS Midsection Mercury Outboards
Item #: 8M0205953  Cross Reference#: 8M0205953, 8M0205954  
Manufacturer Item: 8M0205953
Manufacturer: Mercury Marine
Available: Out of Stock
55.99
Each
Quantity:
Quantity Price
1 55.99
Mercury CMS Anodes

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
Fitment Note: This anode kit fits compatible Mercury 3.4L V6 175HP-225HP CMS outboards, 4.6L V8 225HP-300HP CMS outboards, and Mercury Racing 150R, 250R, and 300R 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

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Complete 300-hour Mercury V6 service kit including engine oil.

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300 Hour V8 Kit With Oil

300 Hour V8 Kit With Oil

Complete 300-hour Mercury V8 service kit including engine oil.

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What 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.

Apply for a Dealer Account

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

Anodes

OEM or Aftermarket
OEM
Manufacturer
Mercury
Material
Aluminum