Martyr Anodes CMPNZC Replacement Prop Nut Anode Zinc Series C

The Martyr Anodes CMPNZC is a zinc replacement propeller nut anode designed to provide effective galvanic corrosion protection for stern drives and outboard motor propeller assemblies. This Series C prop nut anode threads directly onto the propeller shaft, creating a sacrificial barrier that protects more expensive metal components from electrochemical corrosion in saltwater and brackish water environments.

Key Features:

• Zinc alloy construction provides excellent protection in saltwater applications
• Series C thread configuration for specific stern drive and outboard applications
• Replaces worn or depleted prop nut anodes to maintain corrosion protection
• Sacrificial design corrodes preferentially to protect propeller shaft, hardware, and lower unit
• Easy installation threads directly onto propeller shaft
• Helps extend service life of expensive drive components

Regular inspection and replacement of prop nut anodes is essential preventative maintenance for marine drives. Replace the anode when approximately 50% of the material has corroded away to ensure continuous protection. The CMPNZC is engineered to meet or exceed original equipment specifications for reliable performance.