00224A for Round Anode 4–30hp — Replaces Mercury 7-823912 / 823912 / Nissan-Tohatsu 369602181

Protect your Mercury or Nissan/Tohatsu outboard with a precision-fit aluminum round 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 for a full replacement:

● 00224A — Qty 1 (Replaces 7-823912 / 823912 / 369602181)

Key Benefits

● Aluminum anode for lower unit corrosion protection

● OEM-equivalent replacement for Mercury and Nissan/Tohatsu 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 4–30 hp

● Nissan/Tohatsu outboards 4–30 hp

Replaces OEM:

● Mercury 7-823912
● Mercury 823912
● Nissan/Tohatsu 369602181

Why Aluminum Anodes?

Mercury outboards 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 and protect your outboard. Using zinc anodes on Mercury 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: 0.04 lbs (0.02 kg)

What’s Included

● Aluminum anode

Ideal For

● Mercury and Nissan/Tohatsu 4–30 hp outboard owners

● Routine corrosion prevention and maintenance

● Mixed-water boating environments

● DIY replacement or professional service