Pencil Anodes

Performance Metals aluminum pencil anodes help protect marine engines, heat exchangers, oil coolers, and other cooling system components from galvanic corrosion. Manufactured from high-quality aluminum, they outperform traditional zinc anodes in heat exchanger applications and feature our exclusive Securecore® technology, which prevents the spent end of the anode from breaking away and blocking cooling passages.

Not sure which pencil anode you need? Use our Pencil Anode Measurement Chart to quickly identify the correct replacement by length, diameter, thread size, and plug type.