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Inspect annually and easy to replace with existing hardware and\ncommon tools.The Quicksilver brand is the leader in delivering uncompromising\nengine oils, parts and accessories to the marine industry for over 65 years.\nQuicksilver is the premier supplier of Mercury Marine Original Equipment\nreplacement engine parts, oils, and accessories, but also works to serve all\nOriginal Equipment brands in the marine and powersports industries. It has\nearned a loyal following by providing the highest quality products that are\ntested through some of the most rigorous environments and testing procedures.\nNo aftermarket company comes close to the level of research and design as\nQuicksilver; buying Quicksilver is buying performance, protection and peace of\nmind.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eFor fresh water use only\u003c\/li\u003e\n \u003cli\u003eMagnesium trim tab anode will help combat galvanic corrosion and aid in reducing steering torque\u003c\/li\u003e\n \u003cli\u003eProduced to meet Mercury Marine original equipment manufacturer specifications to best protect your Mercury or Mariner outboard and MerCruiser sterndrive\u003c\/li\u003e\n \u003cli\u003eCast with magnesium to meet or exceed Mil-Spec A-21412(SH) standards\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-05-06T20:00:39+10:00","created_at":"2026-05-06T20:00:36+10:00","vendor":"Quicksilver","type":"Knurled Head Bolts","tags":["health_selected_Apr2026"],"price":18500,"price_min":18500,"price_max":18500,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":44972695224389,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B002IV6F7Q","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Quicksilver 31640T6 Magnesium Anode for Mercury, Mariner Outboards, MerCruiser Stern Drives","public_title":null,"options":["Default Title"],"price":18500,"weight":160,"compare_at_price":null,"inventory_management":"shopify","barcode":"745061135192","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/beesactive.com\/cdn\/shop\/files\/B002IV6F7Q.jpg?v=1778116343","\/\/beesactive.com\/cdn\/shop\/files\/711oi3tR0GL.jpg?v=1778061639"],"featured_image":"\/\/beesactive.com\/cdn\/shop\/files\/B002IV6F7Q.jpg?v=1778116343","options":["Title"],"media":[{"alt":null,"id":31525313151045,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2323,"width":2323,"src":"\/\/beesactive.com\/cdn\/shop\/files\/B002IV6F7Q.jpg?v=1778116343"},"aspect_ratio":1.0,"height":2323,"media_type":"image","src":"\/\/beesactive.com\/cdn\/shop\/files\/B002IV6F7Q.jpg?v=1778116343","width":2323},{"alt":null,"id":31525313183813,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1500,"width":1500,"src":"\/\/beesactive.com\/cdn\/shop\/files\/711oi3tR0GL.jpg?v=1778061639"},"aspect_ratio":1.0,"height":1500,"media_type":"image","src":"\/\/beesactive.com\/cdn\/shop\/files\/711oi3tR0GL.jpg?v=1778061639","width":1500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eQuicksilver 31640T6 Magnesium Anode for Mercury, Mariner Outboards, MerCruiser Stern Drives\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eCast from high quality magnesium to fit Mercury and Mariner outboards, 35hp\nand above plus all MerCruiser Sterndrives except Bravo series. Designed for\nuse only in fresh water to help protect your engine and from the harmful\neffects of galvanic corrosion. Check for proper propeller clearance at time of\ninstallation. Inspect annually and easy to replace with existing hardware and\ncommon tools.The Quicksilver brand is the leader in delivering uncompromising\nengine oils, parts and accessories to the marine industry for over 65 years.\nQuicksilver is the premier supplier of Mercury Marine Original Equipment\nreplacement engine parts, oils, and accessories, but also works to serve all\nOriginal Equipment brands in the marine and powersports industries. It has\nearned a loyal following by providing the highest quality products that are\ntested through some of the most rigorous environments and testing procedures.\nNo aftermarket company comes close to the level of research and design as\nQuicksilver; buying Quicksilver is buying performance, protection and peace of\nmind.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eFor fresh water use only\u003c\/li\u003e\n \u003cli\u003eMagnesium trim tab anode will help combat galvanic corrosion and aid in reducing steering torque\u003c\/li\u003e\n \u003cli\u003eProduced to meet Mercury Marine original equipment manufacturer specifications to best protect your Mercury or Mariner outboard and MerCruiser sterndrive\u003c\/li\u003e\n \u003cli\u003eCast with magnesium to meet or exceed Mil-Spec A-21412(SH) standards\u003c\/li\u003e\n \u003c\/ul\u003e"}

Quicksilver 31640T6 Magnesium Anode for Mercury, Mariner Outboards, MerCruiser Stern Drives

In Stock. Leaves warehouse within 2 - 3 business days

$185.00 AUD
Maximum quantity available reached.
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Quicksilver 31640T6 Magnesium Anode for Mercury, Mariner Outboards, MerCruiser Stern Drives

Cast from high quality magnesium to fit Mercury and Mariner outboards, 35hp and above plus all MerCruiser Sterndrives except Bravo series. Designed for use only in fresh water to help protect your engine and from the harmful effects of galvanic corrosion. Check for proper propeller clearance at time of installation. Inspect annually and easy to replace with existing hardware and common tools.The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement engine parts, oils, and accessories, but also works to serve all Original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind.

Product Features

  • For fresh water use only
  • Magnesium trim tab anode will help combat galvanic corrosion and aid in reducing steering torque
  • Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your Mercury or Mariner outboard and MerCruiser sterndrive
  • Cast with magnesium to meet or exceed Mil-Spec A-21412(SH) standards

Buy with confidence as this product comes with 18 months full local warranty in Australia & New Zealand (unless otherwise stated in the overview).

This product also comes with the benefits of the Warranty. For further details please read our Warranty Guidelines.

You can also purchase 3 Year Extended Care. If you are interested please see our Extended Care Information.