Metal Guide

Al
Suitable for salt & fresh water
Mg
Suitable for fresh water
Zn
Suitable for salt water

Follow our colour coding for easy identification of metals.

Engine Anodes For Boats

Engine anodes are a vital part of your marine engine as they protect the engine block and other metal parts from corrosion. Engine anodes are made of a metal alloy (aluminium, magnesium or zinc) that is more reactive to corrosion than the metal parts of the engine and acts as a "sacrificial" protection for those parts. The anode will corrode preferentially to the engine parts, thus protecting the engine block, cylinder heads, and other metal parts of the engine from corrosion. It’s vital that you regularly check and replace your engine anodes when required to ensure the continued protection of the engine.

As mentioned above, engine anodes are made from three metals – aluminium, magnesium and zinc.

Aluminium engine anodes offer protection in salt and fresh water, whilst zinc engine anodes are more suited to salt water as the impact strength of the metal is superior compared to aluminium and magnesium. Magnesium engine anodes are only suitable for use in fresh water, as the alloy reacts far more rapidly when exposed to sea water.

Why choose Anode Outlet?

Since 2009, we've been helping boat owners worldwide protect their vessels with our leading range of anodes for boat hulls, propellers, shafts and much, much more.

We stock a huge range of engine anodes from leading brands, including Aifo-Fpt-Iveco, Beta Marine, Bukh, Caterpillar, Cummins, Ford, General Motors, Kohler, Iveco, Lombardini, Nanni Diesel, Onan, Reintjes, Renault, Steyr, Universal Types, VM, Volvo, Yanmar, Yamaha, ZF and more.

We pride ourselves on our customer service, and aim to make it as easy as possible for you to find the right anodes for your requirements; so if you have a mystery anode, contact us, and we will help you identify it! All our orders are shipped out on a fully tracked, next working day service - although if your order is urgent, please call us on 01634 568011 to confirm stock availability.