Tecnoseal MerCruiser Sterndrive Base Support Zinc Anode M12 × 1.75 – Osculati 43.442.00

Tecnoseal 01801-1 MerCruiser Sterndrive Base Support Zinc Anode M12 × 1.75 – Osculati 43.442.00

The Tecnoseal 01801-1 is a zinc sacrificial base support anode designed for compatible MerCruiser sterndrive installations. Cross-referenced with Osculati 43.442.00, this replacement anode provides sacrificial galvanic corrosion protection for electrically connected metallic components of the sterndrive assembly.

The anode features an M12 × 1.75 threaded connection, an outside diameter specification of 22/25 mm and an overall length of 35 mm. Its compact cylindrical configuration is intended for the corresponding threaded base support mounting position.

Manufactured from zinc, the Tecnoseal 01801-1 is suitable for corrosion protection systems operating in appropriate saltwater conditions. When correctly installed with electrical continuity to the components requiring protection, the zinc corrodes preferentially, helping reduce galvanic corrosion of the protected metallic parts.

Technical Specifications

MerCruiser Sterndrive Application

The Tecnoseal 01801-1 is specified for use as a base support anode on compatible MerCruiser sterndrive systems. It serves as a replaceable sacrificial component intended to help protect electrically connected metallic parts exposed to the marine environment.

Because MerCruiser sterndrive configurations and mounting arrangements can differ, compatibility should be confirmed by comparing the existing anode with the supplied dimensions and threaded connection.

Construction and Mounting Dimensions

The anode is specified with an outside diameter of 22/25 mm, a length of 35 mm and an M12 × 1.75 threaded connection.

• Diameter: 22/25 mm.
• Length: 35 mm.
• Mounting thread: M12 × 1.75.
• Material: Zinc.
• Reference: Osculati 43.442.00.

Before installation, check the original anode's thread and dimensions. The threaded connection must match the corresponding mounting point, and the anode should be installed according to the equipment manufacturer's instructions.

Zinc Sacrificial Corrosion Protection

Zinc is commonly used as a sacrificial anode material in saltwater marine corrosion protection systems. When correctly installed with suitable electrical continuity, the zinc is consumed preferentially, helping reduce galvanic corrosion of connected metallic components.

The Tecnoseal 01801-1 provides a replaceable zinc element for compatible MerCruiser sterndrive installations. The suitability of the material should be checked against the operating water conditions and the original equipment requirements.

Inspection and Replacement

Inspect the base support anode periodically as part of routine sterndrive maintenance. Replace it when the sacrificial material is significantly depleted, damaged or no longer securely attached.

During replacement, inspect the threaded mounting connection and contact surfaces. Ensure that the new anode matches the original component and is installed with the required electrical contact.

Scope of Supply

1 × Tecnoseal 01801-1 MerCruiser Sterndrive Base Support Zinc Anode.