MG Duff 89949A1 89949T1 Mercury Zinc Bracket Anode for 150–200 HP Copy

MG Duff CM89949Z Mercury 89949A1 89949T1 Zinc Bracket Anode for 150–200 HP

The MG Duff CM89949Z is a zinc sacrificial bracket anode designed for compatible Mercury outboard and MerCruiser sterndrive installations in the 150–200 HP range. It corresponds to Mercury original part numbers 89949A1 and 89949T1 and provides sacrificial galvanic corrosion protection for electrically connected metallic components of compatible marine propulsion systems.

The anode features a formed, bracket-style zinc body with angled mounting sections. Its overall dimensions are 280 mm in length, 59 mm in width and 60 mm in height. The mounting configuration includes four fixing holes on 239 mm centres, with a specified stud size of 10 mm.

Weighing 1.07 kg, the CM89949Z is intended as a replacement sacrificial anode for installations requiring this bracket geometry and mounting arrangement.

Technical Specifications

Mercury and MerCruiser Compatibility

The MG Duff CM89949Z is specified for compatible Mercury outboard engines and MerCruiser sterndrive installations within the 150–200 HP range.

The following Mercury original part numbers are associated with this anode:

• Mercury 89949A1
• Mercury 89949T1

These references help identify the correct replacement anode. Compatibility should be confirmed using the original part number, engine or drive configuration and mounting dimensions, as not every installation within the stated horsepower range necessarily uses the same anode.

Bracket Construction and Mounting Dimensions

The CM89949Z features a formed zinc body with angled sections intended for the corresponding outboard or sterndrive bracket mounting arrangement.

The anode has the following physical specifications:

• Overall length: 280 mm
• Overall width: 59 mm
• Overall height: 60 mm
• Fixing holes: 4
• Fixing hole spacing: 239 mm centres
• Stud size: 10 mm
• Weight: 1.07 kg

The 239 mm fixing-hole centre measurement and the overall body dimensions are important when checking compatibility with an existing bracket anode.

Before installation, compare the original anode's shape, hole positions and fastening arrangement with the CM89949Z specifications.

Zinc Sacrificial Corrosion Protection

The MG Duff CM89949Z 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 to the metallic components requiring protection, the zinc corrodes preferentially, helping reduce galvanic corrosion of the protected marine propulsion components.

The correct anode material should be selected according to the operating water conditions and the propulsion equipment manufacturer's recommendations.

Inspection and Replacement

Inspect the bracket anode periodically during routine outboard or sterndrive maintenance. Replace it when the zinc material becomes significantly depleted, physically damaged or no longer securely attached.

When fitting a replacement, inspect the mounting surfaces and fasteners, confirm alignment with the four fixing holes and follow the relevant equipment manufacturer's installation instructions.

Product Identification

• Brand: MG Duff
• Part Number: CM89949Z
• Mercury References: 89949A1, 89949T1
• EAN: 0628309113698

Scope of Supply

1 × MG Duff CM89949Z Zinc Mercury / MerCruiser Bracket Anode.