Sierra 18-6014A Aluminum Anode for Inline 3, 4 & 6 Cyl and V6 Engines - Replaces Mercury 822777A1, 46399A1

The Sierra 18-6014A is an aluminum anode engineered to provide sacrificial corrosion protection for marine engine blocks. Mounted directly to the engine, the anode corrodes preferentially in place of surrounding metal engine components, helping to slow the galvanic corrosion that saltwater and brackish-water operation causes over time. Regular anode inspection and replacement is one of the most cost-effective ways to protect an engine's long-term integrity, and the 18-6014A is sized and shaped as a direct fit for the engines it is designed for.

This anode is built for inline 3, 4, and 6 cylinder engines as well as V6 engines, making it a common replacement part for engine owners performing routine zinc/anode maintenance. It is manufactured from aluminum, a material widely used in anode applications for its reliable sacrificial corrosion rate. The part is cross-referenced to several Mercury Marine OEM numbers, so it can be ordered as a direct replacement using either the Sierra part number or any of the equivalent Mercury part numbers listed below.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-6014A
• Product Type: Anode
• Material: Aluminum
• Engine Fitment: Inline 3, 4 & 6 Cylinder and V6 engines
• Weight: 0.3 pounds
• Package Dimensions: 7 inches L x 3.25 inches H x 6.25 inches W
• Country of Origin: Canada
• UPC: 808282175887
• OEM Cross Reference: 46399A1, 822777A1, 822777Q1, 822777A4, 822777A3, 8227772, 822777, 463999A2

Fitment

• Inline 3, 4 & 6 Cylinder engines
• V6 engines

Replaces (OEM)

• 46399A1
• 822777A1
• 822777Q1
• 822777A4
• 822777A3
• 8227772
• 822777
• 463999A2

Frequently Asked Questions

What engines does the Sierra 18-6014A anode fit? The Sierra 18-6014A aluminum anode is designed for inline 3, 4, and 6 cylinder engines as well as V6 engines.

What is the Sierra 18-6014A made of? It is an aluminum anode, which provides sacrificial corrosion protection for the engine block it is mounted to.

Which OEM part numbers does the 18-6014A replace? The 18-6014A cross-references to Mercury Marine numbers 46399A1, 822777A1, 822777Q1, 822777A4, 822777A3, 8227772, 822777, and 463999A2, so any of these can be used to identify the same replacement part.

How much does the 18-6014A anode weigh? The Sierra 18-6014A weighs 0.3 pounds.

Is the 18-6014A a genuine Sierra part or an aftermarket copy? 18-6014A is the Sierra manufacturer part number itself, not a generic aftermarket substitute, and it is manufactured to match the OEM Mercury numbers it replaces.

What are the package dimensions of the 18-6014A? The 18-6014A ships in packaging measuring 7 inches long by 3.25 inches high by 6.25 inches wide.

Why does an engine need an anode like the 18-6014A? An anode such as the 18-6014A corrodes in place of surrounding engine metal, protecting the engine block from galvanic corrosion during operation in water.

Can I use the 18-6014A on a Mercury engine even though it has a Sierra part number? Yes, the 18-6014A is cross-referenced directly to multiple Mercury Marine OEM anode numbers, including 822777A1 and 46399A1, making it a compatible replacement for those engines.

How often should the 18-6014A anode be replaced? Anodes like the 18-6014A should be inspected regularly and replaced once significantly corroded, since a depleted anode can no longer protect the surrounding engine metal.

Where is the Sierra 18-6014A manufactured? The 18-6014A aluminum anode is manufactured in Canada.

Does the 18-6014A work on both inline and V-type engines? Yes, this specific anode is fitted for inline 3, 4, and 6 cylinder engines as well as V6 engines.