MG Duff 76214Q5 76214A6 Mercury MerCruiser Alpha Bravo Round Plate Anode

Name: MG Duff 76214Q5 76214A6 Mercury MerCruiser Alpha Bravo Round Plate Anode
SKU: EX CM76214Z
Rating: 5 (1 reviews)

SKU: EX CM76214Z

ID 1406799

$ 16.07

1-2 weeks delivery time

Type:

Zinc
Magnesium
Aluminium

The MG Duff CM76214Z and CM76214A are circular flat plate sacrificial anodes for compatible Mercury outboards and MerCruiser Alpha One Generation II, Bravo I, Bravo II and Bravo III sterndrives, with listed Mercury references 76214Q5 and 76214A6. Both versions measure 90 × 90 mm and feature one mounting hole with a specified 7/16-14 UNC fastening size and a 1 3/4-inch bolt length requirement. The zinc CM76214Z measures 24 mm in depth and weighs 0.28 kg, while the aluminium CM76214A measures 20 mm in depth and weighs 0.11 kg. The anodes provide sacrificial corrosion protection for electrically connected underwater metallic propulsion components. Verify the original anode dimensions, mounting hardware and drive configuration before ordering.

Description
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MG Duff CM76214 Mercury 76214Q5 / 76214A6 MerCruiser Alpha Bravo Round Plate Anode – Zinc / Aluminium

The MG Duff CM76214Z and CM76214A are circular flat plate sacrificial anodes designed for compatible Mercury outboard and MerCruiser sterndrive installations. Listed drive applications include Alpha One Generation II, Bravo I, Bravo II and Bravo III, with additional Mercury Verado references in the supplied application information.

The anodes are associated with Mercury part numbers 76214Q5 and 76214A6. The zinc version is identified as CM76214Z, while the aluminium version is CM76214A.

Both models have a circular plate configuration measuring 90 mm in length and 90 mm in width. However, their specified depths and weights differ: the zinc anode is 24 mm deep and weighs 0.28 kg, while the aluminium version is 20 mm deep and weighs 0.11 kg.

Technical Specifications

Parameter	Specification
Manufacturer	MG Duff
Product Series	CM76214
Product Type	Circular Flat Plate Sacrificial Anode
Compatible Manufacturers	Mercury / MerCruiser
Listed Sterndrive Models	Alpha One Gen II, Bravo I, Bravo II, Bravo III
Additional Application Reference	Mercury Verado
Mercury Part References	76214Q5, 76214A6
Available Materials	Zinc, Aluminium
Shape	Round / Circular Flat Plate
Length	90 mm
Width	90 mm
Depth	24 mm (Zinc); 20 mm (Aluminium)
Mounting Thread Specification	7/16-14 UNC
Number of Fixing Holes	1
Specified Bolt Length	1 3/4 inch
Sales Unit	1 anode

Available Variants and Dimensions

MG Duff Part Number	Material	Dimensions	Weight
CM76214Z	Zinc	90 × 90 × 24 mm	0.28 kg
CM76214A	Aluminium	90 × 90 × 20 mm	0.11 kg

Important: Although both anodes belong to the CM76214 series, their stated depths are different. Check the original component dimensions and installation clearance before selecting the replacement material.

Mercury and MerCruiser Compatibility

The MG Duff CM76214 series is listed for compatible Mercury outboard and MerCruiser applications, including:

MerCruiser Alpha One Generation II (Alpha 1 Gen 2)
MerCruiser Bravo I (Bravo 1)
MerCruiser Bravo II (Bravo 2)
MerCruiser Bravo III (Bravo 3)
Mercury Verado – listed as an additional application reference

Mercury original part references supplied for this anode type are:

76214Q5
76214A6

The aluminium CM76214A is specifically listed with Mercury part number 76214A6. Compatibility with individual outboard models, drive serial numbers and production years should be checked against the original equipment parts documentation.

Circular Plate Construction and Mounting

The CM76214 series features a circular sacrificial plate body with one central mounting position.

Plate dimensions: 90 × 90 mm
Zinc depth: 24 mm
Aluminium depth: 20 mm
Fixing holes: 1
Specified fastening size: 7/16-14 UNC
Specified bolt length: 1 3/4 inch

The 7/16-14 UNC specification identifies the required fastening thread, while the 1 3/4-inch value identifies the stated bolt length. These should be verified against the existing mounting hardware.

The supplied information specifies a bolt length but does not confirm whether a mounting bolt is included with either anode.

Zinc and Aluminium Sacrificial Corrosion Protection

The MG Duff CM76214 series is available in two sacrificial anode materials:

Zinc – CM76214Z: Commonly used for galvanic corrosion protection in saltwater marine environments. Specified weight: 0.28 kg.
Aluminium – CM76214A: Used in suitable saltwater and certain brackish-water corrosion protection systems. Specified weight: 0.11 kg.

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

Select the appropriate material according to operating water conditions and Mercury / MerCruiser maintenance recommendations.

Inspection and Replacement

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

Before fitting a replacement, confirm the original part reference, mounting thread, bolt length and available installation clearance. Follow the applicable Mercury or MerCruiser installation instructions.