MG Duff 3861583A Volvo Penta SX / DPX Hook-Up Fork Triangle Aluminium Anode

MG Duff CM872793A Volvo Penta 3861583A SX / DPX Hook-Up Fork Triangle Aluminium Anode

The MG Duff CM872793A is an aluminium sacrificial hook-up fork triangle anode designed for compatible Volvo Penta SX, DPX and XDP-B sterndrives. The supplied original part reference is Volvo Penta 3861583A.

The anode is manufactured from aluminium and provides sacrificial galvanic corrosion protection for electrically connected metallic components of compatible marine propulsion systems.

Its compact triangular body measures 66 mm in length, 38 mm in width and 13 mm in height. It has one fixing hole with a diameter of 6 mm, a specified 5 mm stud size and weighs 0.05 kg (50 g).

Technical Specifications

Volvo Penta Sterndrive Compatibility

The MG Duff CM872793A is listed for the following Volvo Penta sterndrive applications:

• Volvo Penta SX
• Volvo Penta DPX
• Volvo Penta XDP-B

Earlier product information also references Volvo Penta 290 and 290DP. These additional applications should be confirmed against the original equipment parts documentation before ordering.

The supplied Volvo Penta reference is 3861583A. Verify the original anode part number and mounting configuration, as different drive versions may use different sacrificial anodes.

Hook-Up Fork Triangle Anode Dimensions

The CM872793A has a compact triangular body with the following dimensions:

• Length: 66 mm
• Width: 38 mm
• Height: 13 mm
• Fixing holes: 1
• Fixing hole diameter: 6 mm
• Specified stud size: 5 mm
• Weight: 0.05 kg

The 6 mm fixing hole diameter and 5 mm stud size are separate measurements. A thread pitch has not been provided in the product specifications.

Before installation, compare the replacement anode with the original hook-up fork component and verify the mounting position and fastening arrangement.

Aluminium Sacrificial Corrosion Protection

The MG Duff CM872793A is manufactured from aluminium and is specified for suitable saltwater and brackish-water applications.

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

Select and maintain the anode according to the vessel's operating water conditions and Volvo Penta's corrosion protection recommendations.

Inspection and Replacement

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

Before fitting a replacement:

• Confirm the Volvo Penta sterndrive model.
• Check the original part reference 3861583A.
• Verify the 66 × 38 × 13 mm body dimensions.
• Confirm the single 6 mm fixing hole.
• Check the specified 5 mm stud size.
• Inspect the mounting surfaces and follow the applicable Volvo Penta installation instructions.

Part Numbers and Cross-References

• MG Duff Part Number: CM872793A
• Volvo Penta Reference: 3861583A
• Material: Aluminium
• Listed Applications: SX, DPX, XDP-B
• Dimensions: 66 × 38 × 13 mm
• Weight: 0.05 kg

Scope of Supply

1 × MG Duff CM872793A Volvo Penta Hook-Up Fork Triangle Aluminium Anode.

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