Description
Protect your Mercruiser outdrive with a precision-fit aluminum cavitation plate anode engineered to meet OEM requirements and deliver reliable corrosion protection in salt, brackish, or fresh water. Made in the USA for consistent performance and durability.
Contents
This product includes all required aluminum anodes and mounting hardware for a full replacement:
● 00046A — Qty 1 (Replaces 821630Q1)
Key Benefits
● Aluminum anode for cavitation plate corrosion protection
● OEM-equivalent replacement for Mercury part #821630Q1
● Aluminum alloy approved for use in all water types
● Manufactured in the USA to MIL-DTL-24779 military specification
● Patented red spot wear indicator for easy visual inspection
● Meets Mercury factory requirements — won’t invalidate warranty
● Longer-lasting and more effective than traditional zinc anodes
Compatibility
Fits:
● Mercruiser Bravo outdrives
● Mercruiser XR outdrives
● Mercruiser XZ outdrives
Replaces OEM:
● Mercury 821630Q1
Why Aluminum Anodes?
Mercury and Mercruiser outdrives are factory-equipped with aluminum anodes because they provide reliable protection across salt, brackish, and freshwater environments. Unlike zinc, which can become inactive in freshwater, aluminum continues to perform. Using zinc anodes on Mercury or Mercruiser drives may also void your manufacturer warranty, making aluminum the correct and compliant choice.
Product Specifications
● Material: Navalloy® Aluminum Alloy
● Water Type: Salt, Brackish, Fresh
● Manufacturing Standard: MIL-DTL-24779
● Wear Indicator: Patented red spot system
● Total Weight: 0.8 lbs (0.35 kg)
What’s Included
● Complete aluminum anode
● All required mounting hardware
● Installation instructions
Ideal For
● Mercruiser Bravo, XR, and XZ owners
● Routine corrosion prevention and maintenance
● Mixed-water boating environments
● DIY replacement or professional service
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