{"product_id":"water-pump-housing-o-ring-fits-yamaha-marine-outboard-replaces-93210-45161-18-71332","title":"Water Pump Housing O-Ring – Fits Yamaha Marine Outboard (Replaces 93210-45161, 18-71332)","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\u003eWater Pump Housing O-Ring\u003c\/strong\u003e is designed as a direct replacement for Yamaha Marine outboard engines. Engineered from durable rubber material, it delivers a strong seal to prevent water leaks and ensure reliable pump operation across a wide range of Yamaha outboard applications.\u003c\/p\u003e\n\u003cp\u003eThis o-ring cross-references OEM part number 93210-45161 and aftermarket equivalents including Sierra 18-71332 and GLM 84310.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for worn or damaged o-rings\u003c\/li\u003e\n  \u003cli\u003eWear-resistant rubber construction for extended service life\u003c\/li\u003e\n  \u003cli\u003eSimple installation with no special tools required\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\u003e93210-45161\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\u003e18-71332\u003c\/td\u003e\n        \u003ctd\u003eAftermarket\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e84310\u003c\/td\u003e\n        \u003ctd\u003eAftermarket\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\u003e93210-45161\u003c\/td\u003e\n        \u003ctd\u003eCompatible with Yamaha Marine Outboards\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\u003eType\u003c\/dt\u003e\n  \u003cdd\u003eWater Pump Housing O-Ring\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eMarine Outboard\u003c\/dd\u003e\n  \u003cdt\u003eBrand Compatibility\u003c\/dt\u003e\n  \u003cdd\u003eYamaha\u003c\/dd\u003e\n  \u003cdt\u003eOEM Reference\u003c\/dt\u003e\n  \u003cdd\u003e93210-45161\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\u003eDisconnect the fuel line and remove the lower unit according to your service manual.\u003c\/li\u003e\n  \u003cli\u003eRemove the water pump housing and locate the old o-ring.\u003c\/li\u003e\n  \u003cli\u003eClean the o-ring groove thoroughly, removing any debris or old seal material.\u003c\/li\u003e\n  \u003cli\u003eLightly lubricate the new o-ring with water-resistant marine grease.\u003c\/li\u003e\n  \u003cli\u003eSeat the new o-ring evenly into the housing groove, ensuring no twists or kinks.\u003c\/li\u003e\n  \u003cli\u003eReassemble the water pump housing and lower unit, torquing fasteners to specification.\u003c\/li\u003e\n  \u003cli\u003eReconnect the fuel line and test the engine, checking for proper water flow through the tell-tale.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if my water pump o-ring needs replacement?\u003c\/summary\u003e\n  \u003cp\u003eSigns include reduced water flow from the tell-tale, engine overheating, visible cracks or compression set on the old o-ring, or water leaking from the pump housing seam during operation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I reuse the old o-ring during reassembly?\u003c\/summary\u003e\n  \u003cp\u003eNo. O-rings are designed for single use. Reusing a compressed or aged seal increases the risk of leaks and overheating. Always install a new o-ring when servicing the water pump.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat lubricant should I use on the o-ring?\u003c\/summary\u003e\n  \u003cp\u003eUse a water-resistant marine grease or the manufacturer-recommended lubricant. Avoid petroleum-based products that may degrade rubber seals over time.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should I replace this o-ring?\u003c\/summary\u003e\n  \u003cp\u003eReplace the o-ring whenever you service the water pump impeller, typically every 2–3 years or 200–300 hours of operation, whichever comes first. Also replace if you notice any loss of seal integrity.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit my specific Yamaha outboard year and model?\u003c\/summary\u003e\n  \u003cp\u003eThis o-ring is compatible with Yamaha outboards that originally used part number 93210-45161. Compare your existing part with the product images and verify the OEM number in your service manual before purchasing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I install this myself or do I need a mechanic?\u003c\/summary\u003e\n  \u003cp\u003eIf you have basic mechanical skills and the proper service manual, you can install this o-ring yourself. However, professional installation is recommended if you are unfamiliar with lower unit disassembly or water pump servicing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \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\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \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\n\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":51025817633083,"sku":"2537","price":16.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/s-l1600_cf33967d-d24d-4476-ae05-99dec1f56f1b.webp?v=1772959742","url":"https:\/\/seasierra.com\/products\/water-pump-housing-o-ring-fits-yamaha-marine-outboard-replaces-93210-45161-18-71332","provider":"SeaSierra","version":"1.0","type":"link"}