Martyr Anodes CM865182CM Mercruiser Bravo III Prop Nut Magnesium Anode

The Martyr Anodes CM865182CM is a magnesium prop nut anode designed specifically for MerCruiser Bravo III outdrives from 2004 to present. This enhanced protection anode replaces the standard prop nut to provide superior corrosion protection for your propeller shaft and lower unit components in freshwater environments.

Key Features:

• Precision-engineered magnesium alloy construction optimized for freshwater use
• Direct replacement for OEM MerCruiser part number 865182
• Fits MerCruiser Bravo III stern drives (2004-present models)
• Protects expensive drive components from galvanic corrosion
• Easy installation - replaces existing prop nut
• Premium corrosion protection without sacrificing propeller performance

Important Installation Note: Always verify proper propeller clearance after installing any new anode to ensure safe operation.

Anode Material Selection Guide: Use magnesium anodes for freshwater applications, aluminum anodes for saltwater and brackish water, and zinc anodes for saltwater environments. This magnesium anode is specifically formulated for freshwater use where magnesium provides the optimal galvanic protection.