00226A for Square Block Anode 4–9.9hp — Replaces Mercury 875208 / Tohatsu 3H6-60218-0
00226A for Square Block Anode 4–9.9hp — Replaces Mercury 875208 / Tohatsu 3H6-60218-0
Infographic highlighting the superiority of aluminum anodes with icons and text on a white background.
Comparison chart between Aluminum and Zinc for water types and hull compatibility.
Diagram explaining how anodes work to prevent galvanic corrosion on boats.

00226A for Square Block Anode 4–9.9hp — Replaces Mercury 875208 / Tohatsu 3H6-60218-0

$4.06 Sale

Protect your Mercury, Mariner, or Nissan/Tohatsu outboard with a precision-fit aluminum square block 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:

● 00226A — Qty 1 (Replaces Mercury 875208 / Tohatsu 3H6-60218-0)

Key Benefits

● Aluminum anode for lower unit and block corrosion protection

● OEM-equivalent replacement for Mercury and 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 and Mariner Outboards:

● 10 hp 2-cylinder 4-stroke

● 15 hp 2-cylinder 4-stroke

● 20 hp models

● 4 hp and 5 hp 2-stroke

● 4 hp, 5 hp, 6 hp, 8 hp, and 9.9 hp 4-stroke outboards

Fits Nissan/Tohatsu Outboards:

● 4–50 hp models

Replaces OEM:

● Mercury 875208

● Tohatsu 3H6-60218-0

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: 0.06 lbs (0.03 kg)

What’s Included

● Aluminum anode

Ideal For

● Mercury, Mariner, and Nissan/Tohatsu outboard owners

● Routine corrosion prevention and maintenance

● Mixed-water boating environments

● DIY replacement or professional service

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