Sierra 18-6070 Zinc Anode - Replaces Yamaha 688-45371-02-00 and Mercury Marine 97-826134Q

The Sierra 18-6070 is a zinc sacrificial anode built for Yamaha outboard applications, protecting submerged engine and drive components from galvanic corrosion caused by the electrochemical reaction between dissimilar metals in saltwater and brackish water. As the least noble metal in the system, the zinc anode corrodes preferentially, sacrificing itself so that the more critical engine, drive, and hardware components are preserved. This is a transom-mount anode intended for use on 4-stroke gasoline outboard engines.

The anode is a direct equivalent for the Yamaha 688-45371-02-00 and Mercury Marine 97-826134Q part numbers, allowing it to be installed as a like-for-like replacement without modification. It ships as a single unit and is manufactured to meet or exceed the performance of the original equipment part it replaces. As with all sacrificial anodes, periodic inspection is recommended, with replacement needed once roughly half of the original material has been consumed, to maintain continuous corrosion protection for the connected components.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-6070
• Category: Yamaha Outboard Anode
• Material: Zinc
• Color: White
• Weight: 1.22 pounds
• Mounting Type: Transom Mount
• Engine Type: 4 Stroke
• Fuel Type: Gasoline
• Unit Count: 1
• UPC: 030999976819

Fitment

Fits Yamaha outboard engines specified for the 688-45371-02-00 anode.

Replaces (OEM)

• Mercury Marine 97-826134Q
• Yamaha 688-45371-02-00

Frequently Asked Questions

What is the Sierra 18-6070 used for? It is a zinc sacrificial anode that protects submerged outboard engine and drive components from galvanic corrosion by corroding in place of the more critical metal parts.

Is the Sierra 18-6070 a direct replacement for the Yamaha 688-45371-02-00? Yes, the Sierra 18-6070 is a direct equivalent for the Yamaha 688-45371-02-00 anode and installs as a like-for-like replacement.

Does the Sierra 18-6070 cross reference to a Mercury Marine part number? Yes, the Sierra 18-6070 also cross-references to Mercury Marine part number 97-826134Q.

What material is the Sierra 18-6070 anode made from? Zinc, which is the standard sacrificial metal used for anodes on outboards operated in saltwater and brackish water.

How much does the Sierra 18-6070 weigh? The Sierra 18-6070 anode weighs 1.22 pounds.

How is the Sierra 18-6070 mounted? It is a transom-mount anode designed to attach to the transom area of the outboard.

What engine type is the Sierra 18-6070 designed for? It is designed for 4-stroke gasoline outboard engines.

How many anodes come in one Sierra 18-6070 package? The Sierra 18-6070 is sold as a single unit, with one anode per package.

Is the Sierra 18-6070 genuine Sierra or aftermarket? The 18-6070 is a genuine Sierra part, manufactured to meet or exceed the performance of the original equipment anode it replaces.

When should the Sierra 18-6070 anode be replaced? Like any sacrificial anode, the 18-6070 should be inspected periodically and replaced once a significant portion of its original zinc material has corroded away, to keep protecting the connected components.

What color is the Sierra 18-6070 anode? The Sierra 18-6070 is white in color.