MG Duff 875810 Volvo Penta 100 Sterndrive Small Propeller Ring Zinc Anode Ø99 mm

MG Duff CMV15Z Volvo Penta 875810 100 Sterndrive Small Propeller Ring Zinc Anode Ø99 mm

The MG Duff CMV15Z is a zinc sacrificial propeller ring anode designed for the Volvo Penta 100 Sterndrive. It corresponds to Volvo Penta OEM part number 875810 and provides sacrificial corrosion protection for electrically connected underwater metallic components of the sterndrive assembly.

The small ring-shaped anode is manufactured from zinc and is intended for suitable saltwater marine applications.

The CMV15Z measures 99 mm in outside diameter, 51 mm in inside diameter and 11 mm in height. It features two fixing holes spaced 67 mm between centres, with a specified 10 mm stud size.

The anode weighs 0.20 kg (200 g) and is supplied individually.

Technical Specifications

Volvo Penta 100 Sterndrive Compatibility

The MG Duff CMV15Z is specified for the Volvo Penta 100 Sterndrive requiring the corresponding small propeller ring anode.

• Compatible Sterndrive: Volvo Penta 100
• Volvo Penta OEM: 875810
• MG Duff Replacement: CMV15Z
• Anode Configuration: Small Propeller Ring

Before ordering, verify the original Volvo Penta part number and compare the dimensions and fixing-hole arrangement with the existing anode.

Ring Anode Dimensions and Mounting

The CMV15Z features a compact ring-shaped body with two fixing holes.

• Outside diameter: 99 mm
• Inside diameter: 51 mm
• Height: 11 mm
• Number of fixing holes: 2
• Fixing-hole centre distance: 67 mm
• Stud size: 10 mm

The 51 mm inside diameter and 67 mm fixing-hole centre distance are separate measurements. Both should be checked when identifying the correct replacement.

The specified stud size is 10 mm. The supplied technical information does not identify the thread pitch or confirm whether mounting fasteners are included.

Zinc Sacrificial Corrosion Protection

The MG Duff CMV15Z is manufactured from zinc, a sacrificial anode material commonly used in saltwater marine corrosion protection systems.

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 sterndrive parts.

Material suitability should be confirmed according to the vessel's operating water conditions and Volvo Penta's maintenance recommendations.

Inspection and Replacement

Inspect the propeller ring anode periodically during routine Volvo Penta sterndrive maintenance. Replace it when the zinc material becomes significantly depleted, damaged or no longer securely attached.

Before installing the replacement:

• Confirm the Volvo Penta 100 Sterndrive application.
• Verify OEM reference 875810.
• Check the 99 mm outside diameter and 51 mm inside diameter.
• Confirm the 11 mm height.
• Verify the two fixing holes and 67 mm centre distance.
• Check the specified 10 mm stud size.
• Follow the applicable Volvo Penta installation instructions.

Part Numbers and Cross-References

• MG Duff Part Number: CMV15Z
• MG Duff Series: CMV15
• Volvo Penta OEM: 875810
• Material: Zinc
• EAN: 8720193084428
• Weight: 0.20 kg

Scope of Supply

1 × MG Duff CMV15Z Volvo Penta 100 Sterndrive Small Propeller Ring Zinc Anode.

Mounting hardware inclusion is not confirmed in the supplied product specifications.