MG Duff CM6884537102Z Yamaha 50–90 HP Skeg Trim Tab Zinc Anode Ø92 × 77 mm

MG Duff CM6884537102Z Yamaha 50–90 HP Skeg Trim Tab Zinc Anode Ø92 × 77 mm

The MG Duff CM6884537102Z is a zinc sacrificial skeg and trim tab anode designed for compatible Yamaha 50–90 HP outboard motors. It is also listed for selected Parsun and Painier outboard applications.

The anode is manufactured from zinc and intended for corrosion protection in saltwater environments. When correctly installed with electrical continuity to the components requiring protection, the sacrificial zinc corrodes preferentially, helping reduce galvanic corrosion of electrically connected underwater metallic parts.

The CM6884537102Z measures 92 mm in outside diameter and 77 mm in height. It features an M10 × 1.25 mounting thread and weighs 0.48 kg (480 g).

Technical Specifications

Yamaha Outboard Compatibility

The MG Duff CM6884537102Z is listed for compatible Yamaha outboard motors with the following power ratings:

• Yamaha 50 HP
• Yamaha 60 HP
• Yamaha 70 HP
• Yamaha 75 HP
• Yamaha 80 HP
• Yamaha 85 HP
• Yamaha 90 HP

The supplied compatibility information also references Parsun and Painier outboards. Specific model numbers and production years for these additional manufacturers are not provided.

Engine horsepower alone does not guarantee compatibility. Confirm the original trim tab shape, mounting thread and lower-unit configuration before ordering.

Skeg Trim Tab Dimensions and Mounting

The MG Duff CM6884537102Z features a skeg-style trim tab configuration with the following specified measurements:

• Outside diameter: 92 mm
• Overall height: 77 mm
• Mounting thread: M10 × 1.25
• Weight: 0.48 kg

The M10 × 1.25 specification identifies a metric thread with a nominal diameter of 10 mm and a pitch of 1.25 mm. Check that the mounting arrangement matches the original anode before installation.

Zinc Sacrificial Corrosion Protection

The CM6884537102Z is manufactured from zinc, a sacrificial anode material commonly used for galvanic corrosion protection in saltwater marine environments.

When correctly installed with suitable electrical continuity, the zinc corrodes preferentially, helping reduce galvanic corrosion of electrically connected underwater engine components.

Select the appropriate anode material according to the operating water conditions and the outboard manufacturer's maintenance recommendations.

Inspection and Replacement

Inspect the skeg trim tab anode periodically during routine outboard maintenance. Replace it when the zinc is significantly depleted, physically damaged or no longer securely attached.

Before fitting a replacement:

• Confirm the outboard manufacturer and model.
• Compare the replacement with the original skeg trim tab.
• Verify the 92 mm outside diameter and 77 mm height.
• Check the M10 × 1.25 mounting thread.
• Follow the applicable manufacturer's installation instructions.

Part Number and Product Identification

• MG Duff Part Number: CM6884537102Z
• Material: Zinc
• Application: Yamaha 50–90 HP Outboard Skeg / Trim Tab
• Additional Listed Brands: Parsun, Painier
• Dimensions: Ø92 × 77 mm
• Mounting Thread: M10 × 1.25
• Weight: 0.48 kg

Scope of Supply

1 × MG Duff CM6884537102Z Yamaha Skeg / Trim Tab Zinc Anode.

Mounting hardware inclusion is not confirmed in the supplied specifications.