Anodes

About Anodes

Zincs & Anodes

Zincs and boat anodes are the hidden protectors of our boats. Zincs are made in many different shapes and sizes in order to fit where electrolysis attacks the most. Shaft anodes, on the other hand, fit inside tanks and engine blocks in order to do the same thing.

What exactly are marine anodes?

In a nutshell, electrolysis is the effect of electrical current carried through the water and into and through the hull. Electrolysis will eat away at any and almost all metals in your boat. Boat zincs and anodes draw the electrolysis away from the metals and sacrifice themselves to the corrosion.

Rudder zincs, Shaft zincs - boat anodes come in many different sizes.

Shaft anodes usually are made up of two-piece that are fitted together around the shaft. These zincs are available in sizes to fit most propeller shafts. Rudder zincs are flat like a pancake and bolt onto the rudder and hull zincs are also flat and bolt to the hull.

Plug it in and forget it!

Well, that's not necessarily true. Plug it in and check it is better. Keep in mind that zincs should be changed when about 70% corroded. Check them often to get a feel for the corrosion rate, especially if you move marinas or even docks. Water heater anodes should be removed before winterizing and engine anodes can come out if you store your boat and engine.

Anodes

Martyr Mercury Bravo Trim Cylinder Sacrificial Anode - CM806190M

Martyr Mercury Alpha I Driveshaft Housing Sacrificial Anode - CM821629M

Martyr Mercury Wedge Sacrificial Anode - CM826134M

Martyr Yamaha Trim Tab Skeg Sacrificial Anode - CM61A4537100M

Martyr Johnson/Evinrude Handlebar Sacrificial Anode - CM6G54525101M

Martyr Mercury Trim Tab Skeg Sacrificial Anode - CM46399M

Martyr Mercury Button Sacrificial Anode - CM55989M

Martyr Johnson/Evinrude Cavitation Plate Sacrificial Anode

Martyr Volvo Penta Transom Bar Sacrificial Anode

Martyr Volvo Gimbal Plate Sacrificial Anode

Martyr Volvo Penta Upper Gearcase Sacrificial Anode

Martyr Yamaha Trim Tab Skeg Sacrificial Anode

Martyr Yamaha Trim Tab Sacrificial Anode

Martyr Mercury Alpha Trim Tab Sacrificial Anode

Martyr Mercury Alpha Trim Cylinder Sacrificial Anode

Martyr Mercury Bravo Trim Tab Sacrificial Anode

Martyr Mercury Alpha I Bearing Carrier Sacrificial Anode

Martyr Mercury Bravo I Bearing Carrier Sacrificial Anode

Martyr Mercury Gimbal Housing Sacrificial Anode

Martyr Bombardier Block Sacrificial Anode

Martyr OMC Cobra Sacrificial Anode Kit

Martyr Propeller Nut Sacrificial Anode Assembly

Martyr Mercruiser Outdrive Sacrificial Anode Kit - Alpha I Gen I

Martyr Mercury Sacrificial Anode Kit - F30/F40/F60 HP

Seachoice Mercury Alpha One Gen I Anode Kit

Seachoice Mercury Verado 4 Anode Kit

Seachoice Volvo Anode Kit

Seachoice Honda BF Anode Kit

Seachoice Z406 Hull Plate Anode - 95654

About Anodes

Zincs & Anodes

What exactly are marine anodes?

Rudder zincs, Shaft zincs - boat anodes come in many different sizes.

Plug it in and forget it!

1Filters

Change Locale

Helpful Information

Get In Touch

Resources

Stay Connected