Sierra 18-6158Z Alpha One Gen II Zinc Anode Kit

The Sierra 18-6158Z is a complete zinc anode kit designed specifically for MerCruiser Alpha One Generation II stern drives manufactured in 1991 and newer. This comprehensive corrosion protection kit provides essential galvanic protection for your sterndrive components in saltwater environments.

Key Features:

• Complete anode kit with all necessary anodes for Alpha One Gen II drives
• Constructed from high-quality zinc material for optimal saltwater protection
• Includes mounting hardware for easy installation
• Designed to meet or exceed OEM specifications
• Provides galvanic corrosion protection for critical drive components

What's Included:

• Flat trim tab zinc anode
• Gimbal zinc anode
• Plate zinc anode
• Lift-ram zinc anodes (2)
• Bearing carrier zinc anode
• Mounting hardware kit

Important Application Notes:

• For saltwater use only - zinc anodes are specifically formulated for marine saltwater environments
• For freshwater applications, use magnesium anodes (Sierra 18-6158M)
• For brackish water, aluminum anodes (Sierra 18-6158A) are recommended
• Compatible with MerCruiser Alpha One Gen II drives serial number 0D469829 and up

Regular inspection and replacement of sacrificial anodes is critical for protecting your expensive sterndrive components from corrosion. Sierra marine parts are engineered as direct OEM replacements, ensuring proper fit and reliable performance.

Replaces OEM Part Numbers: Mercury 888756A1, 888756Q01, 97-888756Q03, 97-888755K01; Quicksilver 888756Q03; Tecnoseal 20801; Martyr CMALPHAKITZ