Mercury Skeg Anode Zinc | Martyr CM31640Z

Mercury Skeg Anode Zinc | Martyr CM31640Z

Martyr zinc anode designed to protect gearcase from corrosion salt water.

• Mercruiser trim tab anode
• Zinc anode for salt water applications
• Used on many Mercury /Mariner outboards 35hp and above
• Used on all MerCruiser excluding Bravo drives
• Zinc replacement for Mercury's aluminum anode p/n 31640Q4
• For fresh water application see p/n CM31640M