Tecnoseal Max Prop Saildrive Zinc Collar Anodes Ø42–46 mm

Tecnoseal 00484 / 00485 Max Prop Saildrive Zinc Collar Anodes Ø42–46 mm

The Tecnoseal 00484 and 00485 are zinc sacrificial collar anodes designed for compatible Max Prop Saildrive propeller assemblies. These replacement anodes feature a circular collar-shaped body with a central opening and mounting points for attachment to the corresponding propeller component.

Both variants share the same external dimensions, measuring 92 mm (3.62 in) in outside diameter and 25 mm (0.98 in) in height. The main difference is the internal opening diameter: the Tecnoseal 00484 has a 42 mm opening, while the Tecnoseal 00485 has a 46 mm opening.

The collar-shaped construction incorporates a split body and lateral fastening points visible in the manufacturer's technical illustrations. Manufactured from zinc, these components serve as replaceable sacrificial anodes that help protect electrically connected underwater metallic components of compatible Max Prop Saildrive assemblies against galvanic corrosion.

Technical Specifications

Available Variants

• Tecnoseal 00484 – Internal Ø42 mm: Zinc collar anode for compatible Max Prop Saildrive assemblies. Outside diameter: 92 mm, height: 25 mm, internal opening diameter: 42 mm. Weight: 0.60 kg (1.32 lbs).
• Tecnoseal 00485 (Osculati 43.226.46) – Internal Ø46 mm: Zinc collar anode for compatible Max Prop Saildrive assemblies. Outside diameter: 92 mm, height: 25 mm, internal opening diameter: 46 mm. Weight: 0.57 kg (1.26 lbs).

Max Prop Saildrive Compatibility

These Tecnoseal collar anodes are intended for compatible Max Prop Saildrive propeller installations. Both share the same external dimensions but have different internal opening diameters, making the internal measurement the key distinguishing characteristic.

The 00484 is specified with an internal diameter of 42 mm, while the 00485 has an internal diameter of 46 mm. The two versions should not be considered interchangeable without confirming the dimensions of the original collar and its mounting arrangement.

Before ordering, compare the original anode's internal diameter, external profile and fastening arrangement with the manufacturer's technical drawing.

Design and Mounting Configuration

The Tecnoseal Max Prop collar anodes feature a circular, split-body construction with a central opening. The manufacturer's illustrations show a tapered outer profile and lateral fastening points designed for securing the anode to the corresponding mounting section.

The outside diameter of both versions is 92 mm, and their overall height is 25 mm. The 00484 has a 42 mm internal opening, while the 00485 has a 46 mm internal opening.

These dimensions are particularly important when identifying the correct replacement. The manufacturer's supplied chart does not specify the fastening hardware dimensions for these two versions.

Galvanic Corrosion Protection

Manufactured from zinc, the Tecnoseal 00484 and 00485 function as sacrificial corrosion protection components. When electrically connected to the underwater metallic parts requiring protection, the zinc corrodes preferentially, helping reduce galvanic corrosion of the propeller assembly.

Zinc anodes are commonly used in saltwater environments. Material suitability should be checked against the vessel's operating conditions and the propeller manufacturer's recommendations.

Inspection and Replacement

Inspect the collar anode during routine propeller maintenance and replace it when significantly depleted, damaged or no longer securely attached.

Before installing the replacement, verify the internal opening diameter, inspect the mounting surfaces and fastening points, and ensure appropriate electrical contact with the metallic component requiring protection.

Scope of Supply

1 × Tecnoseal Max Prop Zinc Collar Anode in the selected internal diameter.