Martyr Anodes

Martyr™ is the world’s leading manufacturer and supplier of die cast
Zinc, aluminium and magnesium sacrificial anodes, which are sold worldwide.

Martyr™ Anodes provide low cost cathodic protection of ocean-going vessels, structures and equipment constructed of iron, steel, aluminum, magnesium, and other metals. It is the only manufacturer that offers all 3 alloys for all water environments for pleasurecraft and commercial.

What is cathodic protection?
Cathodic protection is an electrochemical process which halts the natural reaction (corrosion) of metals in a particular environment by superimposing an electrochemical cell more powerful than the corrosion cell. Sacrificial Anodes are fitted or bonded to the metal to be protected which in turn as it has a greater electrical potential than the anode material becomes cathodic and causes the anode to waste instead of itself.

For more information - visit Martyr Anodes web site

Anodes are inexpensive which means it is important to protect your boat with a quality product. Martyr anodes are pressure diecast and manufactured to strict quality standards through an ISO 9001 Quality Management System. In addition, each alloy is guaranteed to be manufactured to the latest US Military Alloy Specification and is chemically tested regularly at their in-house labs to ensure consistency. Poorly manufactured anodes may contain high levels of impurities such as iron, which will leave your investment unprotected.

Fit the correct anode material for the waters your vessel is operating in.
As a general rule owners should fit the anodes suitable for the environment they most regularly berth in and the following table provides a useful guide :

In Salt Water Fit Zinc (Martyr 1) or Aluminium Anodes
In Brackish Water Fit Aluminium Andoes (Martyr 11)
In Fresh Water Fit Magnesium Anodes (Martyr 111)

To learn more - visit the Martyr Anodes web site

Complete With Plug

Without Plug


Engine Anodes

Part Numbers and Measurement Chart

Shaft Anodes


Part Numbers and Measurement Chart


Shaft Anodes

Limited Clearance

Part Numbers and Measurement Chart

Rudder Anodes

Part Numbers and Measurement Chart

Hull Anodes

Part Numbers and Measurement Chart

Prop Nut Anodes

Part Numbers and Measurement Chart

Outboard & Outdrive Anodes

Part Numbers and Measurment Chart

Hull Anodes, Olympic Drive Anodes, Heat Exchanger Anodes, Platform/Standoff Anodes, Cable Anodes, Ballast Tank Anodes, Condenser Anodes, Crab Trap Anodes, Propnut Anodes, Plate Anodes and Rod Anodes.


Commercial Anodes

Part Numbers and Measurement Chart