CMP Zinc Pencil Anode

The CMP Zinc Pencil Anode is a sacrificial engine cooling system anode (also called a pencil zinc or engine zinc) for marine engines and heat exchangers. It protects metal components from galvanic corrosion in raw-water cooling circuits. Each anode is a zinc pencil threaded into a brass plug, so it can be installed in a raw-water port on the engine.

Key Features:

• Zinc pencil element corrodes in place of the engine's metal parts, which helps protect the cooling system from saltwater corrosion
• Brass plug with a 3/8 NPT thread for installing into the engine's cooling system
• Made as a complete anode with the zinc element and brass plug together
• Designed to meet or exceed the specification of original-equipment engine anodes

Pencil anodes are consumed as they work, so inspect them regularly and replace them when they are heavily eroded. Replacing them on schedule helps extend the life of heat exchangers, coolers and other raw-water-cooled engine components. This product line is sold under the CMP Group family of brands, which also includes Martyr Anodes.