MG Duff CM826134 Mercury Verado / Honda 75 HP Gearcase Wedge Anode

MG Duff CM826134 Mercury Verado / Honda 75 HP Gearcase Wedge Anode – Zinc / Aluminium

The MG Duff CM826134Z and CM826134A are sacrificial wedge anodes designed for compatible Mercury outboard, MerCruiser and Honda marine propulsion applications.

These anodes are positioned on the side of the gear housing, just above the cavitation plate. They provide sacrificial galvanic corrosion protection for electrically connected underwater metallic components of the propulsion system.

Listed applications include Mercury Verado 6-cylinder engines, Honda 75 HP and additional V6, 40, 50 and 115 EFI four-stroke references.

The series is available in two materials: zinc (CM826134Z) and aluminium (CM826134A).

Both variants measure 76 mm in length, 30 mm in width and 23 mm in height. Each features one recessed fixing hole measuring 6 mm in diameter and a specified 5 mm stud size.

Two anodes are required per assembly. Each anode is sold individually.

Technical Specifications

Available Material Variants

Both versions share the same dimensions and mounting configuration. They differ in sacrificial material and weight.

Mercury and Honda Compatibility

The MG Duff CM826134 series is listed for compatible outboard and sterndrive applications, including:

• Mercury Verado: 6-cylinder applications
• Honda: 75 HP applications
• Additional engine references: V6, 40 HP, 50 HP and 115 EFI four-stroke
• MerCruiser: Compatible gearcase installations requiring this wedge anode configuration

The supplied application information does not fully identify the manufacturer and model associated with every horsepower reference. These references should therefore be checked against the original equipment parts documentation.

Before ordering, confirm the existing wedge anode dimensions, mounting position and gearcase configuration.

Gearcase Wedge Anode Dimensions and Mounting

The CM826134 series features a wedge-shaped sacrificial anode body designed for installation on the side of the gear housing above the cavitation plate.

• Length: 76 mm
• Width: 30 mm
• Height: 23 mm
• Fixing holes: 1
• Fixing hole: Recessed, 6 mm diameter
• Stud size: 5 mm

The 6 mm fixing-hole diameter and 5 mm stud size are separate mounting measurements. A thread pitch has not been specified.

Confirm the mounting-hole position and original fastener arrangement before installation.

Quantity Required

Two MG Duff CM826134 wedge anodes are required per compatible assembly.

Each CM826134Z or CM826134A is supplied as one individual anode. Order a quantity of two when replacing both anodes on an assembly requiring a pair.

Zinc and Aluminium Sacrificial Corrosion Protection

The MG Duff CM826134 series is available in two sacrificial materials:

• Zinc – CM826134Z: Weighs 0.25 kg and is commonly used for galvanic corrosion protection in saltwater marine environments.
• Aluminium – CM826134A: Weighs 0.10 kg and is suitable for appropriate saltwater and brackish-water corrosion protection systems.

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

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

Inspection and Replacement

Inspect the wedge anodes periodically during routine outboard or sterndrive maintenance. Replace them when the sacrificial material becomes significantly depleted, physically damaged or no longer securely attached.

Before fitting replacements:

• Confirm the engine and gearcase model.
• Check the original wedge anode mounting position above the cavitation plate.
• Verify the 76 × 30 × 23 mm dimensions.
• Confirm the recessed 6 mm fixing hole and 5 mm stud size.
• Check whether both anodes on the assembly require replacement.
• Follow the applicable manufacturer's installation instructions.

Part Numbers and References

• MG Duff Zinc: CM826134Z
• MG Duff Aluminium: CM826134A
• Zinc Weight: 0.25 kg
• Aluminium Weight: 0.10 kg
• Quantity Required: 2 per assembly

Scope of Supply

1 × MG Duff Gearcase Wedge Anode in the selected material:

• CM826134Z – Zinc; or
• CM826134A – Aluminium.

Sold individually. Two pieces are required per assembly.

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