SKU:
Osculati-43.254.12
$ 36,54
1-2 weeks delivery time
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+
Magnesium rod anode for Yamaha 6H1-45251-03 and Selva 25–100 HP outboards. Specifically designed for freshwater use, this internal anode is installed in the engine’s cooling passages to protect against galvanic corrosion inside the cylinder head and block. Magnesium offers the highest electrochemical activity, ensuring rapid and efficient protection in low-conductivity environments like lakes and rivers.
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Osculati 43.254.12 – Yamaha 6H1-45251-03 25/100 HP Magnesium Rod Anode
This internal rod anode is a direct replacement for Yamaha OEM part 6H1-45251-03 and is compatible with Selva outboards from 25 to 100 HP. Manufactured from high-purity magnesium, it is specifically designed for freshwater use, where its superior electrochemical reactivity offers maximum galvanic protection. It is inserted into the engine’s internal cooling passages to prevent corrosion of the cylinder walls, head, and cooling jacket.
Technical Specifications
Item Code 43.254.12 Material Magnesium OEM Reference 6H1-45251-03 Engine Compatibility Yamaha & Selva 25–100 HP Installation Area Internal cooling system / water jacket Environment Freshwater only
Key Features
- OEM-equivalent replacement for Yamaha 6H1-45251-03
- Made from high-activity magnesium – ideal for freshwater
- Protects cylinder head, block, and water jacket from internal corrosion
- Fast electron exchange for effective sacrificial action
- Easy to install in standard Yamaha/Selva anode port
Usage Notes
Magnesium anodes are intended only for freshwater use. They should not be used in saltwater or brackish water, where they degrade too rapidly and may lose effectiveness. Check regularly and replace when over 50% is consumed to maintain full protection of internal engine components.
Documents
Osculati Catalogue 2025 - page 775 Size: 254,9 Kb -
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