Martyr Anodes CM865182CZ Prop Nut Zinc Anode for Mercruiser Bravo III 2004+

The Martyr Anodes CM865182CZ is a zinc prop nut anode designed specifically for Mercruiser Bravo III outdrives from 2004 to present. This essential component provides enhanced corrosion protection for your propeller shaft and drive system by sacrificing itself to protect more valuable metal components from galvanic corrosion in saltwater environments.

Key Features:

• Direct replacement for Mercruiser part number 865182C
• Zinc alloy composition optimized for saltwater applications
• Threaded prop nut design provides dual functionality
• Easy installation during routine propeller maintenance
• Enhanced protection formulation for extended service life

This anode installs in place of your standard prop nut, providing critical corrosion protection while securely holding your propeller in place. Regular inspection and replacement of sacrificial anodes is essential for maintaining the integrity of your stern drive components. Always verify proper propeller clearance after installation to ensure safe operation.

Anode Selection Guide: Use zinc anodes for saltwater, aluminum anodes for salt and brackish water, and magnesium anodes for freshwater applications.