Sierra 18-6024 Zinc Anode for Johnson/Evinrude OMC Outboard Gearcase

The Sierra 18-6024 is a zinc replacement anode designed specifically for Johnson/Evinrude and OMC outboard motor gearcases. This sacrificial anode provides critical corrosion protection for saltwater applications on 60-300 HP engines manufactured from 1982 to 1987.

Key Features:

• Zinc construction - recommended for saltwater use only
• Fits Johnson/Evinrude outboard gearcases from 1982-1987
• Compatible with 60-300 HP engines
• Meets or exceeds OEM specifications
• Direct replacement for extended engine protection

Replaces OEM Part Numbers:

• Johnson/Evinrude: 393023, 436745
• OMC Stern Drive: 393023
• GLM: 12776

Sacrificial anodes are essential components that protect your engine's metal components from galvanic corrosion in marine environments. The zinc material corrodes preferentially, preserving the integrity of more expensive engine parts. Regular inspection and replacement of anodes is critical for maintaining optimal engine protection.