CMP CME1 Zinc Pencil Anode with Plug 3/8 NPT Engine Cooling System

The CMP CME1 is a zinc pencil anode with plug designed for use in marine engine cooling systems operating in salt water environments. Zinc pencil anodes like this one provide sacrificial corrosion protection by corroding preferentially to the surrounding metals in your engine's cooling passages, extending the life of critical components.

Key Features:

• Material: Zinc — the correct sacrificial anode material for salt water use
• Thread Size: 3/8 NPT plug for secure, leak-free installation
• Outside Diameter: 1/2 inch
• Length: 2 inches
• Includes plug for easy installation and replacement
• Designed specifically for engine cooling system applications
• Salt water use only — zinc anodes are formulated for salt water and should not be used in fresh or brackish water applications

Regular inspection and replacement of pencil anodes is a key part of marine engine maintenance. The CME1 is a direct-fit replacement anode that helps protect raw-water cooled engine blocks, heat exchangers, and manifolds from galvanic corrosion damage.