MG Duff CM61A4537100Z Yamaha Skeg Trim Tab Zinc Anode Ø99 × 91 mm

MG Duff CM61A4537100Z Yamaha Skeg Trim Tab Zinc Anode Ø99 × 91 mm

The MG Duff CM61A4537100Z is a zinc sacrificial skeg trim tab anode designed for compatible Yamaha outboard motors. It is intended for use in saltwater environments, providing sacrificial galvanic corrosion protection for electrically connected underwater metallic components of the outboard propulsion system.

The anode measures 99 mm in outside diameter and 91 mm in height, with an M10 × 1.25 mounting thread. Its specified weight is 0.63 kg (630 g).

Technical Specifications

Yamaha Outboard Compatibility

The MG Duff CM61A4537100Z is designed for Yamaha outboard installations requiring a skeg trim tab anode with the specified dimensions and mounting thread.

Specific Yamaha engine models, horsepower ratings and production years have not been supplied. Before ordering, confirm compatibility against the original anode and the appropriate Yamaha parts documentation.

Skeg Trim Tab Dimensions and Mounting

The CM61A4537100Z features a skeg-style sacrificial anode body with the following specifications:

• Outside diameter: 99 mm
• Height: 91 mm
• Mounting thread: M10 × 1.25
• Weight: 0.63 kg

The M10 × 1.25 designation specifies a metric thread with a nominal diameter of 10 mm and a pitch of 1.25 mm.

Check the existing skeg trim tab configuration, mounting position and thread specification before installation. Mounting hardware inclusion is not confirmed.

Zinc Sacrificial Corrosion Protection

The MG Duff CM61A4537100Z is manufactured from zinc and is specified for saltwater use.

When correctly installed with suitable electrical continuity to the metallic components requiring protection, the zinc corrodes preferentially, helping reduce galvanic corrosion of electrically connected underwater outboard components.

The sacrificial anode should be selected and maintained according to the operating water conditions and Yamaha'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 Yamaha outboard model and original trim tab configuration.
• Verify the 99 mm outside diameter.
• Check the 91 mm height.
• Confirm the M10 × 1.25 mounting thread.
• Inspect the mounting surfaces and follow the applicable Yamaha installation instructions.

Part Number and Product Identification

• MG Duff Part Number: CM61A4537100Z
• Material: Zinc
• Compatible Manufacturer: Yamaha
• Product Type: Skeg / Trim Tab Anode
• Dimensions: Ø99 × 91 mm
• Thread: M10 × 1.25
• Weight: 0.63 kg

Scope of Supply

1 × MG Duff CM61A4537100Z Yamaha Skeg Trim Tab Zinc Anode.

Mounting hardware inclusion is not specified in the supplied product information.