Protect your outboard or outdrive with a precision-fit aluminum trim tab 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:
● 00044A — Qty 1 (Replaces 31640Q4 / 41107-ZW1-003ZA)
Key Benefits
● Aluminum anode for trim tab corrosion protection
● OEM-equivalent replacement for Mercury and Honda applications
● 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:
● Mercury outboards 35 hp and up
● Mariner outboards 35 hp and up
● Mercruiser Alpha 1 outdrives
Replaces OEM:
● Mercury 31640Q4
● Honda 41107-ZW1-003ZA
Why Aluminum Anodes?
Mercury and Mercruiser products 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 applications 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: 0.4 lbs (0.17 kg)
What’s Included
● Complete aluminum anode
● Mounting bolt
● Installation instructions
Ideal For
● Mercury, Mariner, and Mercruiser owners
● Routine corrosion prevention and maintenance
● Mixed-water boating environments
● DIY replacement or professional service
