Your Cart

Martyr Anodes CM821629M Driveshaft Housing Anode for MerCruiser Alpha I Gen II

Manufacturer

Martyr Anodes

Picture for manufacturer Martyr Anodes

Part Number

CM821629M
10 reviews
04/02/2036 3:21 PM
Sale Price

$18.32

In Stock (10+)

delivery box

Usually delivered within 2 days

Add To Cart

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Martyr Anodes CM821629M is a magnesium driveshaft housing anode specifically designed to provide superior corrosion protection for MerCruiser Alpha I Generation II sterndrive outdrives. This sacrificial anode protects vital metal components from galvanic corrosion by corroding preferentially, extending the life of your expensive drive components.

Key Features:

  • Manufactured from premium mil-spec MIL-A-18001 magnesium alloy for optimal corrosion protection
  • Designed specifically for MerCruiser Alpha I Gen II drives (1991 and newer, serial number 0D469829 and up)
  • Erodes inward for consistent performance and easy visual inspection
  • Magnesium composition ideal for freshwater and brackish water environments
  • Direct replacement for Mercury part number 821629
  • Precision-cast to ensure proper fit and maximum galvanic protection

This plate-style anode mounts to the driveshaft housing and should be replaced when 70% eroded to maintain effective corrosion protection. Martyr Anodes manufactures premium marine anodes using only mil-spec alloys to ensure reliable performance and long service life. Always check propeller clearance after installing new anodes to ensure proper installation.

super bien

I went through the Amazon payment option and it was a hassle.

Excellent selection, great prices, and fast shipping. I am very satisfied.

great experience, good price, item arrived within 4 days of purchase, would do business with again in future !

Great just what I wanted.

This website is very easy to shop on, it is easy to pay with amazon

So far great!

Very easy

Best price online, love the shipping discount that was offered! I installed the parts yesterday and everything was installed perfectly. Saved me over $400 buy buying my upper control arms here for my 04 Acura TSX. I am gonna bookmark the site to my favori

Great customer service. Prompt shipment and excellent prices. I will defiantly be ordering from them again. Just wish I would have found them sooner!!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy