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Osculati 43.640.04 – Mercury 8239121 & Suzuki 55321-94900 & Evinrude 5034616 Zinc Anode Rod
The Osculati 43.640.04 is a versatile zinc anode rod designed to fit multiple outboard and inboard engine brands, including Mercury (8239121), Suzuki (55321-94900), Evinrude/Johnson (5034616 / 5030907), OMC, and Tohatsu models. It is primarily installed within water jackets or anode ports, where it neutralizes electrochemical reactions and prevents galvanic corrosion of engine internals and cooling system components.
Key Features:
- Cross-compatible OEM references:
- Mercury: 8239121
- Suzuki: 55321-94900
- Evinrude/Johnson: 5034616 / 5030907
- Also compatible with OMC and Tohatsu models
- Material: Marine-grade zinc (ideal for saltwater)
- Type: Threaded rod-style anode for internal mounting
- Function: Protects water jackets, cooling passages, and internal engine metals
- Corrosion resistance: Acts sacrificially to prevent electrolysis in enclosed systems
Technical Specifications:
Item Code 43.640.04 Material Zinc OEM References Mercury 8239121
Suzuki 55321-94900
Evinrude 5034616 / 5030907
OMC
TohatsuCompatibility Universal for listed brands and models Environment Saltwater Installation Internal cooling system / anode port (threaded)
For multi-brand fleets or workshops servicing various engine types, the Osculati 43.640.04 offers a convenient, effective solution for internal galvanic protection. Made from high-purity zinc, it ensures reliability in saltwater environments while preserving vital cooling system components across Mercury, Suzuki, Evinrude, OMC, and Tohatsu platforms.
Documents
Osculati Catalogue 2025 - page 772 Size: 335,1 Kb - Cross-compatible OEM references:
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