{"product_id":"yamaha-outboard-sacrificial-anode-zinc-block","title":"Yamaha Outboard Sacrificial Anode Zinc Block – Anti-Corrosion Trim Tab \u0026 Steering Fin for 2‑Stroke \u0026 4‑Stroke Engines","description":"\u003cstyle\u003e\n  \/* ==================== 产品描述样式 - 前缀 gbs-anode 避免全局污染 ==================== *\/\n  .gbs-anode {\n    color: #333;\n    line-height: 1.6;\n    font-size: 16px;\n    word-wrap: break-word;\n  }\n  .gbs-anode h2 {\n    margin: 30px 0 14px;\n    font-size: 1.3rem;\n    font-weight: 600;\n    color: #1a1a1a;\n    border-bottom: 2px solid #f0f0f0;\n    padding-bottom: 8px;\n  }\n  .gbs-anode h3.gbs-faq-question {\n    font-size: 1.05rem;\n    font-weight: 600;\n    color: #1a1a1a;\n    margin: 0 0 6px 0;\n    padding: 0;\n    border: none;\n  }\n  .gbs-anode p {\n    margin: 0 0 14px;\n  }\n  .gbs-overview-text {\n    font-size: 1rem;\n    background: #f9f9f9;\n    padding: 16px 18px;\n    border-left: 4px solid #5d6d7e;\n    border-radius: 4px;\n  }\n  .gbs-warning-box {\n    background: #fef9e7;\n    border: 1px solid #f9e79f;\n    padding: 14px 16px;\n    border-radius: 4px;\n    margin: 0 0 18px;\n    font-weight: 500;\n  }\n  .gbs-features-list {\n    list-style: none;\n    padding: 0;\n    margin: 0 0 18px;\n    display: flex;\n    flex-direction: column;\n    gap: 12px;\n  }\n  .gbs-feature-item {\n    display: flex;\n    align-items: flex-start;\n    gap: 10px;\n    padding: 8px 0;\n    border-bottom: 1px dashed #e0e0e0;\n  }\n  .gbs-feature-item::before {\n    content: \"✓\";\n    display: inline-block;\n    color: #5d6d7e;\n    font-weight: bold;\n    font-size: 1.1rem;\n    margin-top: 2px;\n    flex-shrink: 0;\n  }\n  .gbs-specs-table-wrapper {\n    overflow-x: auto;\n    margin: 10px 0 20px;\n  }\n  .gbs-specs-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.95rem;\n    min-width: 320px;\n  }\n  .gbs-specs-table td {\n    padding: 10px 14px;\n    border: 1px solid #ddd;\n    vertical-align: top;\n  }\n  .gbs-specs-table td:first-child {\n    background-color: #f7f7f7;\n    font-weight: 600;\n    width: 40%;\n    white-space: nowrap;\n  }\n  .gbs-faq-item {\n    margin-bottom: 18px;\n    padding: 10px 14px;\n    background: #fdfdfd;\n    border: 1px solid #eee;\n    border-radius: 4px;\n  }\n  .gbs-faq-answer {\n    color: #555;\n    margin-bottom: 0;\n  }\n  @media (max-width: 600px) {\n    .gbs-anode {\n      font-size: 15px;\n    }\n    .gbs-anode h2 {\n      font-size: 1.2rem;\n      margin-top: 24px;\n    }\n    .gbs-anode h3.gbs-faq-question {\n      font-size: 1rem;\n    }\n    .gbs-overview-text {\n      padding: 12px 14px;\n    }\n    .gbs-specs-table td {\n      padding: 8px 10px;\n      font-size: 0.9rem;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"gbs-anode\"\u003e\n\u003ch2\u003e📦 Yamaha Outboard Sacrificial Anode Kit – Corrosion Protection Zinc Block for 2‑Stroke \u0026amp; 4‑Stroke Engines\u003c\/h2\u003e\n\u003cp class=\"gbs-overview-text\"\u003eProtect your Yamaha outboard's cooling system, steering, and lower unit from the relentless effects of galvanic corrosion with these factory‑style sacrificial anodes. Cast from a zinc‑based alloy engineered to corrode before your engine's aluminum housing, gearcase, or mounting brackets do, these anodes are the most cost‑effective insurance you can install during routine maintenance. Whether your boat lives in a saltwater marina, on a mooring, or is trailered in brackish water, replacing worn anodes annually prevents pitting and structural damage that leads to costly repairs. This comprehensive selection covers every major application—trim tabs, rudder plates, lifting bottoms, gearcase blocks, and steering fins—across the full Yamaha outboard range from portable 2 HP models up to 350 HP V8s. Match your engine year, horsepower, and location to the variant menu to restore full corrosion protection.\u003c\/p\u003e\n\u003cdiv class=\"gbs-warning-box\"\u003e⚠️ \u003cstrong\u003eRoutine Maintenance Reminder:\u003c\/strong\u003e Inspect your anodes at least once per season. If more than 50% of the original material has been consumed, replace it immediately. A dissolved anode can no longer protect your engine.\u003c\/div\u003e\n\u003ch2\u003e✨ Key Features of Yamaha‑Compatible Sacrificial Anodes\u003c\/h2\u003e\n\u003cul class=\"gbs-features-list\"\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eDirect Yamaha Fitment:\u003c\/strong\u003e Designed to match OEM mounting hole patterns and profiles—no drilling or modification needed for a drop‑in replacement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eZinc Alloy Composition:\u003c\/strong\u003e Meets marine‑grade sacrificial anode standards, corroding preferentially to protect expensive aluminum castings and stainless hardware.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eCovers 2‑Stroke \u0026amp; 4‑Stroke Engines:\u003c\/strong\u003e From small 2‑4 HP kickers to 350 HP big‑blocks, with specific anodes for gearcases, trim tabs, and steering fins.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eMultiple Installation Positions:\u003c\/strong\u003e Variants available for lower unit (gearcase), transom bracket (lifting bottom), side plates, and steering rudder plates.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eIncludes Steering \u0026amp; Trim Tab Anodes:\u003c\/strong\u003e Specialized rudder‑mounted zinc fins also serve as sacrificial anodes while maintaining steering dynamics.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eEasy Visual Inspection:\u003c\/strong\u003e Silver zinc surface clearly shows wear progression. No special tools required for inspection—look for pitting or size reduction.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📏 Specifications – Yamaha Outboard Sacrificial Anode\u003c\/h2\u003e\n\u003cdiv class=\"gbs-specs-table-wrapper\"\u003e\n\u003ctable class=\"gbs-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eZinc Alloy (Marine-Grade Sacrificial Anode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eYamaha Outboard Motors – 2‑Stroke \u0026amp; 4‑Stroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHorsepower Range\u003c\/td\u003e\n\u003ctd\u003e2 HP to 350 HP (select variant for your engine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnode Types Available\u003c\/td\u003e\n\u003ctd\u003eGearcase block, trim tab, steering rudder fin, lifting bottom anode, side plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eUses original Yamaha hardware (bolts\/holes); reuse existing fasteners or source separately.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInspection Interval\u003c\/td\u003e\n\u003ctd\u003eEvery 50 hours or every 3 months in saltwater; replace when 50% consumed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePrevent galvanic corrosion; protect the lower unit, transom bracket, and steering components.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003e1 × sacrificial anode (select correct variant from menu; hardware not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e🔍 Yamaha Model Compatibility Guide\u003c\/h2\u003e\n\u003cdiv class=\"gbs-specs-table-wrapper\"\u003e\n\u003ctable class=\"gbs-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHorsepower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAnode Location \/ Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke\u003c\/td\u003e\n\u003ctd\u003e2 – 4 HP\u003c\/td\u003e\n\u003ctd\u003eSmall lower unit anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e2.5 – 6 HP\u003c\/td\u003e\n\u003ctd\u003eSmall lower unit anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke\u003c\/td\u003e\n\u003ctd\u003e9.9 \/ 15 \/ 25 \/ 30 HP\u003c\/td\u003e\n\u003ctd\u003eSteering fin\/rudder plate (original style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke\u003c\/td\u003e\n\u003ctd\u003e9.9 \/ 15 \/ 25 \/ 30 HP\u003c\/td\u003e\n\u003ctd\u003eLower unit anti‑corrosion anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke\u003c\/td\u003e\n\u003ctd\u003e40 HP\u003c\/td\u003e\n\u003ctd\u003eSteering adjustment tab \/ trim fin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke 40 \/ 4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e30 – 60 HP\u003c\/td\u003e\n\u003ctd\u003eGearcase small block anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke\u003c\/td\u003e\n\u003ctd\u003e40 HP\u003c\/td\u003e\n\u003ctd\u003eLifting the bottom anode (transom bracket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 \/ 50 \/ 60 HP\u003c\/td\u003e\n\u003ctd\u003eSteering adjustment fin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e30 – 60 HP\u003c\/td\u003e\n\u003ctd\u003eSide plate \/ electric lift bottom anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke\u003c\/td\u003e\n\u003ctd\u003e48 \/ 55 HP\u003c\/td\u003e\n\u003ctd\u003eSteering adjustment fin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke\u003c\/td\u003e\n\u003ctd\u003e48 (long shaft) \/ 60 HP\u003c\/td\u003e\n\u003ctd\u003eRear electric lift bottom anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e80 \/ 90 \/ 100F \/ 150B\u003c\/td\u003e\n\u003ctd\u003eLifting the bottom anti‑corrosion anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke 60‑85 \/ 4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e80 – 90 HP\u003c\/td\u003e\n\u003ctd\u003eSteering fin\/rudder anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke \/ 4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e50 \/ 60 \/ 80 \/ 90 \/ 100 \/ 110 HP\u003c\/td\u003e\n\u003ctd\u003eSteering fin anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e60 \/ 70 \/ 75 \/ 85 \/ 90 HP\u003c\/td\u003e\n\u003ctd\u003eSteering fin (incl. Parsun 85P compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke 115 \/ 4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e80 – 130 HP (115 old \u0026amp; new)\u003c\/td\u003e\n\u003ctd\u003eRight‑turn rudder anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke \/ 4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e100 – 300 HP\u003c\/td\u003e\n\u003ctd\u003eLarge zinc block (under engine mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke 150A‑200A \/ 4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e150F (old model)\u003c\/td\u003e\n\u003ctd\u003eRight‑turn steering anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2‑Stroke 150A‑200A \/ 4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e150F (old model)\u003c\/td\u003e\n\u003ctd\u003eLeft‑turn steering anode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e200B \/ 250 \/ 300B HP (old)\u003c\/td\u003e\n\u003ctd\u003eAnode with a tail fin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4‑Stroke\u003c\/td\u003e\n\u003ctd\u003e200B \/ 250F \/ 300D \/ 350 HP (new)\u003c\/td\u003e\n\u003ctd\u003eAnode without a tail fin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions – Outboard Sacrificial Anodes\u003c\/h2\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: How often should I replace my Yamaha outboard anodes?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Inspect them every 50 hours of operation or every 3 months if your boat lives in saltwater. Replace the anode once more than half of its original material has been consumed. Waiting too long leaves your engine unprotected against galvanic corrosion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: Can I install these anodes myself, or do I need a marine mechanic?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Most anodes are held on by one or two bolts and can be replaced in under 15 minutes with basic hand tools. The boat can stay on the trailer. For larger under‑mount zinc blocks, you may need a second person to hold the anode in place while tightening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: Do I need to apply grease or anti‑seize to the bolts?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: A small amount of marine grease on the bolt threads is recommended to prevent seizing, especially in saltwater use. Do not paint or grease the anode surface itself—it must be in direct contact with the metal it's protecting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: How do I know which anode variant fits my specific outboard model?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Match your engine's horsepower, stroke type (2‑stroke or 4‑stroke), and the mounting location you need. The variant list is organized by engine size. If your boat is in the water, take a photo of the existing anode before removing it, and compare it to the shape shown in the listing photos.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: What happens if I don't replace a worn anode?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Once the sacrificial anode is consumed, galvanic corrosion will attack the next most reactive metal—typically your engine's aluminum gearcase, mounting brackets, or propeller hub. This causes pitting, structural weakening, and expensive replacement of major engine components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"2-Stroke 48-55HP Steering Fin","offer_id":52246008725778,"sku":"HKTBCLA180001","price":59.57,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 48 Long Shaft-60HP Rear Electric Lift Bottom","offer_id":52246008758546,"sku":"HKTBCLA180002","price":79.43,"currency_code":"USD","in_stock":true},{"title":"4-Stroke 30-60HP Side Plate - Electric Lift Bottom","offer_id":52246008791314,"sku":"HKTBCLA180003","price":55.6,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 9.9-30HP Anti-Corrosion Anode","offer_id":52246008824082,"sku":"HKTBCLA180004","price":40.0,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 40HP Lifting Bottom Anode","offer_id":52246008856850,"sku":"HKTBCLA180005","price":55.6,"currency_code":"USD","in_stock":true},{"title":"4-Stroke 30-60HP Steering Adjustment Fin","offer_id":52246008889618,"sku":"HKTBCLA180006","price":51.63,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 40HP Steering Adjustment Tab","offer_id":52246008922386,"sku":"HKTBCLA180007","price":40.0,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 40-4-Stroke 30-60HP Gearcase Small Block","offer_id":52246008955154,"sku":"HKTBCLA180008","price":51.63,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 2-4-4-Stroke 2.5-6HP Anode","offer_id":52246008987922,"sku":"HKTBCLA180009","price":40.0,"currency_code":"USD","in_stock":true},{"title":"200B-250F-300D-350HP New Model without Tail Fin","offer_id":52246009020690,"sku":"HKTBCLA180010","price":139.0,"currency_code":"USD","in_stock":true},{"title":"4-Stroke 200B-250-300B Old Model with Tail Fin","offer_id":52246009053458,"sku":"HKTBCLA180011","price":91.34,"currency_code":"USD","in_stock":true},{"title":"4-Stroke 80-150HP Lifting Bottom Anti-Corrosion","offer_id":52246009086226,"sku":"HKTBCLA180012","price":79.43,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 150A-200A-4-Stroke 150F Old Model Left Turn","offer_id":52246009118994,"sku":"HKTBCLA180013","price":71.49,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 60-85 - 4-Stroke 80-90HP Steering Fin","offer_id":52246009151762,"sku":"HKTBCLA180014","price":63.54,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 150A-200A-4-Stroke 150F Old Model Right Turn","offer_id":52246009184530,"sku":"HKTBCLA180015","price":91.34,"currency_code":"USD","in_stock":true},{"title":"50-60-80-90-100-110HP Steering Fin","offer_id":52246009217298,"sku":"HKTBCLA180016","price":63.54,"currency_code":"USD","in_stock":true},{"title":"2-Stroke-4-Stroke 100-300HP Under-Engine Zinc Block","offer_id":52246009250066,"sku":"HKTBCLA180017","price":79.43,"currency_code":"USD","in_stock":true},{"title":"4-Stroke 60-90HP Steering Fin - Parsun 85P Compatible","offer_id":52246009282834,"sku":"HKTBCLA180018","price":71.49,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 115 - 4-Stroke 80-130HP Right Turn","offer_id":52246009315602,"sku":"HKTBCLA180019","price":71.49,"currency_code":"USD","in_stock":true},{"title":"2-Stroke 9.9-30HP Steering Fin OEM Style","offer_id":52246009348370,"sku":"HKTBCLA180020","price":71.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/O1CN01CpyAf62347BRUIRhi__720057201.jpg?v=1778047531","url":"https:\/\/homediyer.com\/de\/products\/yamaha-outboard-sacrificial-anode-zinc-block","provider":"HomeDIYer","version":"1.0","type":"link"}