{"product_id":"aluminum-trim-tab-anode-fits-yamaha-60hp-70hp-90hp-2-stroke-replaces-688-45371-02","title":"Aluminum Trim Tab Anode – Fits Yamaha 60HP 70HP 90HP 2-Stroke (Replaces 688-45371-02)","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eAluminum Trim Tab Anode – Fits Yamaha 60HP 70HP 90HP 2-Stroke (Replaces 688-45371-02)\u003c\/strong\u003e is engineered as a direct-fit replacement for Yamaha outboards from 60 to 90 horsepower, covering a broad range of 2-stroke models and select 4-stroke variants produced between 1984 and 2004. It protects the lower unit and trim tab from galvanic corrosion in saltwater and brackish environments.\u003c\/p\u003e\n\u003cp\u003eThis anode directly replaces Yamaha part numbers 688-45371-02-00, 67F-45371-00-00, 688-45371-01-00, 6K5-45251-00-00, 6K5-45371-00-00, and Technoseal TEN01104.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAluminum alloy construction for efficient sacrificial protection\u003c\/li\u003e\n\u003cli\u003eInstalls directly to the trim tab using the included mounting bolt\u003c\/li\u003e\n\u003cli\u003eCompatible with both 2-stroke and 4-stroke Yamaha outboards in the specified range\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e688-45371-02-00\u003c\/td\u003e\n        \u003ctd\u003ePrimary OEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e67F-45371-00-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e688-45371-01-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e6K5-45251-00-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e6K5-45371-00-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eTechnoseal\u003c\/td\u003e\n        \u003ctd\u003eTEN01104\u003c\/td\u003e\n        \u003ctd\u003eAftermarket equivalent\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF50\u003c\/td\u003e\n        \u003ctd\u003e50 HP\u003c\/td\u003e\n        \u003ctd\u003e1996–2000\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eT50\u003c\/td\u003e\n        \u003ctd\u003e50 HP\u003c\/td\u003e\n        \u003ctd\u003e1996–2000\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e60\u003c\/td\u003e\n        \u003ctd\u003e60 HP\u003c\/td\u003e\n        \u003ctd\u003e1984–2004\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eC60\u003c\/td\u003e\n        \u003ctd\u003e60 HP\u003c\/td\u003e\n        \u003ctd\u003e1994–2001\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eE60\u003c\/td\u003e\n        \u003ctd\u003e60 HP\u003c\/td\u003e\n        \u003ctd\u003e1995–2000\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eP60\u003c\/td\u003e\n        \u003ctd\u003e60 HP\u003c\/td\u003e\n        \u003ctd\u003e1991–1999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e70\u003c\/td\u003e\n        \u003ctd\u003e70 HP\u003c\/td\u003e\n        \u003ctd\u003e1984–2004\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eC75\u003c\/td\u003e\n        \u003ctd\u003e75 HP\u003c\/td\u003e\n        \u003ctd\u003e1994–2001\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eE75\u003c\/td\u003e\n        \u003ctd\u003e75 HP\u003c\/td\u003e\n        \u003ctd\u003e1995–2000\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eP75\u003c\/td\u003e\n        \u003ctd\u003e75 HP\u003c\/td\u003e\n        \u003ctd\u003e1991–1999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eC85\u003c\/td\u003e\n        \u003ctd\u003e85 HP\u003c\/td\u003e\n        \u003ctd\u003e1994–2001\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e90\u003c\/td\u003e\n        \u003ctd\u003e90 HP\u003c\/td\u003e\n        \u003ctd\u003e1984–2004\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eC90\u003c\/td\u003e\n        \u003ctd\u003e90 HP\u003c\/td\u003e\n        \u003ctd\u003e1994–2001\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n  \u003cdd\u003eAluminum alloy\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eTrim tab sacrificial anode\u003c\/dd\u003e\n  \u003cdt\u003eMounting Hardware\u003c\/dt\u003e\n  \u003cdd\u003eBolt included\u003c\/dd\u003e\n  \u003cdt\u003eEnvironment\u003c\/dt\u003e\n  \u003cdd\u003eSaltwater and brackish water\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003e1 × Anode with Bolt\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the engine is off and the boat is securely positioned on a stable surface or trailer.\u003c\/li\u003e\n  \u003cli\u003eLocate the existing trim tab anode on the lower unit; it is typically mounted on the underside of the trim tab.\u003c\/li\u003e\n  \u003cli\u003eRemove the old anode by unscrewing the mounting bolt with the appropriate wrench or socket.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting surface thoroughly to remove any corrosion, marine growth, or residue. A clean contact surface ensures proper electrical conductivity.\u003c\/li\u003e\n  \u003cli\u003ePosition the new aluminum anode onto the trim tab, aligning the mounting hole.\u003c\/li\u003e\n  \u003cli\u003eInsert the included bolt and tighten securely, ensuring the anode is flush against the surface without over-torquing.\u003c\/li\u003e\n  \u003cli\u003eInspect the anode periodically (every 50–100 hours of operation or monthly in saltwater) and replace when worn to approximately 50% of original thickness.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should I replace the trim tab anode?\u003c\/summary\u003e\u003cp\u003eInspect every 50–100 hours of operation or at least monthly in saltwater environments. Replace when the anode has eroded to approximately 50% of its original thickness. Waiting until complete erosion risks corrosion damage to the lower unit and trim tab.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this anode in freshwater?\u003c\/summary\u003e\u003cp\u003eWhile aluminum anodes function in freshwater, they are optimized for saltwater and brackish environments. In freshwater, galvanic corrosion is minimal, and zinc or magnesium anodes may be more appropriate depending on the application.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhy is the anode corroding faster than expected?\u003c\/summary\u003e\u003cp\u003eAccelerated anode erosion can result from stray electrical currents, improper grounding, or severe galvanic activity in marinas with mixed metal hulls. Check for electrical faults and ensure all bonding connections are secure. Faster erosion indicates the anode is doing its job protecting more expensive components.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this fit my Yamaha 60HP 6H2 or 6H3 2-stroke?\u003c\/summary\u003e\u003cp\u003eYes, this anode is confirmed compatible with Yamaha 6H2 and 6H3 series 60HP and 70HP 2-stroke models. Always verify the original part number on your existing anode matches one of the listed equivalents.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat happens if I don't replace a worn anode?\u003c\/summary\u003e\u003cp\u003eA depleted anode stops providing sacrificial protection, allowing galvanic corrosion to attack the trim tab, lower unit housing, and other aluminum or steel components. This can lead to costly repairs and reduced engine lifespan.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I paint or coat the anode?\u003c\/summary\u003e\u003cp\u003eNo. Coating or painting the anode prevents electrical contact and renders it ineffective. The anode must maintain bare metal contact with the protected surface to function properly.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":51025817469243,"sku":"24ZA494","price":527.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/12_d92ddcac-49e2-4d5f-8d37-71325d5b01f7.jpg?v=1772959735","url":"https:\/\/seasierra.com\/products\/aluminum-trim-tab-anode-fits-yamaha-60hp-70hp-90hp-2-stroke-replaces-688-45371-02","provider":"SeaSierra","version":"1.0","type":"link"}