Inboard Engine Anodes

Shop Inboard Engine Anodes

What are Inboard Engine Anodes?

Inboard Engine Anodes are sacrificial metal components designed to protect inboard engines from galvanic corrosion in salt and brackish water. They corrode first, preventing damage to critical engine parts.

Why Are Inboard Engine Anodes Important?

• Prevent galvanic and electrolysis corrosion
• Extend engine and cooling system lifespan
• Protect internal engine components
• Reduce costly marine engine repairs

Which Engines Use Inboard Engine Anodes?

Inboard engine anodes are commonly used on:

• Cummins inboard engines
• Volvo Penta inboard engines
• Yanmar inboard engines
• Mercruiser inboard engines

Types of Inboard Engine Anodes

• Pencil Anodes – Installed directly into engine cooling passages
• Zinc Anode Kits – Complete replacement kits for scheduled maintenance
• Threaded Anodes with Plugs – Direct-fit OEM replacements

Popular Inboard Engine Anodes

• Cummins 68241 1/2" Zinc Pencil Anode with Plug
• Volvo Penta 838929 Zinc Anode & 838928 Plug
• Yanmar 119773-92600 Zinc Anode Kit Replacement
• Cummins QSB / QSC / QSM Series Zinc Anode Kits
• Mercruiser 8M0151541 VM Engine Anode

Key Features of Inboard Engine Anodes

• Protect inboard engines from galvanic corrosion
• Available as individual anodes or complete kits
• Genuine and aftermarket options available
• Simple installation with correct engine fitment

Quick Reference Table

How Often Should Inboard Engine Anodes Be Replaced?

Inboard engine anodes should be inspected every 3–6 months and replaced when 50% consumed, or at least once per year in saltwater use.

Where to Buy Inboard Engine Anodes in Australia

Boaters World stocks a wide range of inboard engine anodes with fast shipping Australia-wide and expert support to help you find the correct fit.