{"product_id":"sealing-o-ring-fits-yamaha-marine-outboard-motors-replaces-93210-94003-18-7471","title":"Sealing O-Ring – Fits Yamaha Marine Outboard Motors (Replaces 93210-94003, 18-7471)","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\u003eSealing O-Ring – Fits Yamaha Marine Outboard Motors (Replaces 93210-94003, 18-7471)\u003c\/strong\u003e is an aftermarket replacement designed for reliable sealing performance on compatible Yamaha marine outboard engines. Engineered to match OEM specifications, this rubber O-ring delivers strong sealing protection and durability for long-term use.\u003c\/p\u003e\n\u003cp\u003eDirect replacement for Yamaha OEM 93210-94003, Sierra 18-7471, and GLM 45330.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManufactured from wear-resistant rubber for robust sealing and extended service life\u003c\/li\u003e\n  \u003cli\u003eDrop-in replacement—installs quickly with straightforward operation\u003c\/li\u003e\n  \u003cli\u003eCompare part images with your original component before ordering\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\u003e93210-94003\u003c\/td\u003e\n        \u003ctd\u003eOEM Reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-7471\u003c\/td\u003e\n        \u003ctd\u003eAftermarket Equivalent\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e45330\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\u003eOEM Part No.\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\u003e93210-94003\u003c\/td\u003e\n        \u003ctd\u003eCompatible with Yamaha Marine Outboard Motors\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\u003eRubber\u003c\/dd\u003e\n  \u003cdt\u003eOEM Reference\u003c\/dt\u003e\n  \u003cdd\u003e93210-94003\u003c\/dd\u003e\n  \u003cdt\u003eKey Features\u003c\/dt\u003e\n  \u003cdd\u003eStrong sealing, wear-resistant, durable construction\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eDirect replacement\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× O-Ring\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eShut off the engine and disconnect the battery before beginning work.\u003c\/li\u003e\n  \u003cli\u003eLocate the sealing surface where the old O-ring is seated.\u003c\/li\u003e\n  \u003cli\u003eCarefully remove the old or damaged O-ring, inspecting the mating surfaces for debris or damage.\u003c\/li\u003e\n  \u003cli\u003eClean the sealing groove thoroughly with a lint-free cloth and mild solvent if needed.\u003c\/li\u003e\n  \u003cli\u003eLightly lubricate the new O-ring with compatible marine grease to ease installation and improve sealing.\u003c\/li\u003e\n  \u003cli\u003ePosition the new O-ring in the groove, ensuring it seats evenly without twisting or pinching.\u003c\/li\u003e\n  \u003cli\u003eReassemble the components, torquing fasteners to manufacturer specifications.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and test for leaks during initial operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if this O-ring fits my engine?\u003c\/summary\u003e\u003cp\u003eCross-reference your existing part number with those listed in the Part Number Matrix. If your current O-ring is stamped 93210-94003, 18-7471, or 45330, this replacement is compatible. Always compare dimensions and images before purchase.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing O-ring?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include visible leaks around the seal area, loss of fluid or pressure, cracking or hardening of the rubber, and difficulty maintaining proper engine operation. Replace immediately if you observe any of these issues.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I reuse an old O-ring?\u003c\/summary\u003e\u003cp\u003eNo. O-rings are single-use sealing components. Once compressed or removed, they lose their original shape and sealing integrity. Always install a new O-ring during reassembly to prevent leaks.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need to lubricate the O-ring during installation?\u003c\/summary\u003e\u003cp\u003eYes. A light coating of compatible marine grease helps the O-ring slide into place without twisting or tearing, and improves initial sealing performance. Use only lubricants that are safe for rubber and your engine's operating fluids.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should this O-ring be replaced?\u003c\/summary\u003e\u003cp\u003eReplace the O-ring whenever you disassemble the associated component, or if you notice leaks, cracks, or hardening. Regular inspection during routine maintenance intervals is recommended.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat material is this O-ring made from?\u003c\/summary\u003e\u003cp\u003eThis O-ring is manufactured from durable rubber formulated for marine environments. It offers excellent sealing, wear resistance, and long service life under typical operating conditions.\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":51025817698619,"sku":"2546","price":17.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/s-l1600_6b870b53-4257-4c31-aebe-6f5332f41e22.webp?v=1772959745","url":"https:\/\/seasierra.com\/products\/sealing-o-ring-fits-yamaha-marine-outboard-motors-replaces-93210-94003-18-7471","provider":"SeaSierra","version":"1.0","type":"link"}