{"product_id":"47-89980-water-pump-impeller-for-mercury-mariner-3-5-9-8hp-quickmarine","title":"47-89980 Water Pump Impeller for Mercury Mariner 3.5-9.8HP | Quickmarine","description":"\u003cbody\u003e\n\n\n\n  \u003cmeta charset=\"utf-8\"\u003e\n  \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1\"\u003e\n  \u003ctitle\u003e47-89980 Water Pump Impeller for Mercury Mariner 3.5-9.8HP | Quickmarine\u003c\/title\u003e\n  \u003cmeta name=\"description\" content=\"Aftermarket 47-89980 \/ 47-68988 water pump impeller for selected Mercury and Mariner 3.5HP to 9.8HP outboards. Includes 6-blade neoprene impeller with brass hub and 0.438 inch internal diameter.\"\u003e\n  \u003cstyle\u003e\n    :root {\n      --afm-navy: #0f2f44;\n      --afm-blue: #176b8f;\n      --afm-teal: #2f9b98;\n      --afm-sand: #f6f1e8;\n      --afm-line: #d9e2e7;\n      --afm-text: #24323a;\n      --afm-muted: #5f6f78;\n      --afm-white: #ffffff;\n      --afm-warning: #fff6df;\n    }\n\n    * { box-sizing: border-box; }\n\n    body {\n      margin: 0;\n      font-family: Arial, Helvetica, sans-serif;\n      color: var(--afm-text);\n      background: #f8fafb;\n      line-height: 1.65;\n    }\n\n    main.product-page {\n      max-width: 1180px;\n      margin: 0 auto;\n      padding: 28px 18px 56px;\n    }\n\n    .hero {\n      display: grid;\n      grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);\n      gap: 28px;\n      align-items: stretch;\n      padding: 32px;\n      border-radius: 18px;\n      background: linear-gradient(135deg, var(--afm-navy), #174c68 68%, var(--afm-teal));\n      color: var(--afm-white);\n      box-shadow: 0 18px 40px rgba(15, 47, 68, 0.18);\n    }\n\n    .eyebrow {\n      margin: 0 0 10px;\n      font-size: 0.82rem;\n      letter-spacing: 0.12em;\n      text-transform: uppercase;\n      color: #cfeef1;\n      font-weight: 700;\n    }\n\n    .visual-title {\n      margin: 0;\n      font-size: clamp(2rem, 4vw, 3.2rem);\n      line-height: 1.12;\n      font-weight: 800;\n      letter-spacing: -0.03em;\n    }\n\n    .intro-answer {\n      margin: 18px 0 0;\n      font-size: 1.06rem;\n      color: #e8f7f7;\n      max-width: 760px;\n    }\n\n    .tag-list {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 10px;\n      margin: 22px 0 0;\n      padding: 0;\n      list-style: none;\n    }\n\n    .tag-list li {\n      padding: 8px 12px;\n      border: 1px solid rgba(255,255,255,0.28);\n      border-radius: 999px;\n      background: rgba(255,255,255,0.12);\n      color: #ffffff;\n      font-size: 0.92rem;\n    }\n\n    .hero-card {\n      background: rgba(255,255,255,0.94);\n      color: var(--afm-text);\n      border-radius: 16px;\n      padding: 22px;\n      align-self: center;\n    }\n\n    .hero-card p { margin: 0 0 12px; 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}\n      section { padding: 22px; }\n      main.product-page { padding: 18px 12px 42px; }\n    }\n  \u003c\/style\u003e\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"Product\",\n    \"name\": \"47-89980 \/ 47-68988 Water Pump Impeller for Mercury and Mariner Outboards\",\n    \"brand\": {\n      \"@type\": \"Brand\",\n      \"name\": \"Quickmarine\"\n    },\n    \"category\": \"Marine Engine Cooling System Replacement Part\",\n    \"description\": \"Aftermarket replacement water pump impeller for selected Mercury and Mariner 3.5HP to 9.8HP outboards using Mercury Marine part numbers 47-89980 or 47-68988, or Sierra Marine 18-3054. The impeller has 6 blades, a neoprene body, a brass hub, and a 0.438 inch internal shaft diameter.\",\n    \"material\": \"Neoprene with brass hub\"\n  }\n  \u003c\/script\u003e\n\n\n  \u003cmain class=\"product-page\"\u003e\n    \u003csection class=\"hero\" aria-label=\"Product summary\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"eyebrow\"\u003eAftermarket Outboard Cooling Replacement Part\u003c\/p\u003e\n        \u003cp class=\"visual-title\"\u003e47-89980 \/ 47-68988 Water Pump Impeller for Mercury \u0026amp; Mariner 3.5HP–9.8HP Outboards\u003c\/p\u003e\n        \u003cp class=\"intro-answer\"\u003eThis Quickmarine water pump impeller is an aftermarket replacement for Mercury Marine part numbers \u003cstrong\u003e47-89980\u003c\/strong\u003e and \u003cstrong\u003e47-68988\u003c\/strong\u003e, and it also cross-references with \u003cstrong\u003eSierra Marine 18-3054\u003c\/strong\u003e. It is intended for selected Mercury and Mariner small outboards from the 1979–1985 model range that use a 6-blade impeller with a \u003cstrong\u003e0.438 inch \/ 11.13 mm internal shaft diameter\u003c\/strong\u003e.\u003c\/p\u003e\n        \u003cul class=\"tag-list\" aria-label=\"Product highlights\"\u003e\n          \u003cli\u003e6-blade water pump impeller\u003c\/li\u003e\n          \u003cli\u003eNeoprene body with brass hub\u003c\/li\u003e\n          \u003cli\u003e0.438 inch I.D. shaft fitment\u003c\/li\u003e\n          \u003cli\u003eFor selected 3.5HP–9.8HP applications\u003c\/li\u003e\n          \u003cli\u003e1 impeller included\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003caside class=\"hero-card\" aria-label=\"Quick fitment check\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQuick answer:\u003c\/strong\u003e Use this part when your original impeller, parts diagram, or service reference calls for Mercury 47-89980, Mercury 47-68988, or Sierra 18-3054.\u003c\/p\u003e\n        \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This is not for 0.456 inch shaft applications, including some 5HP models. Confirm the OEM number, engine model, year, and old impeller dimensions before ordering from Quickmarine.com.\u003c\/p\u003e\n      \u003c\/aside\u003e\n    \u003c\/section\u003e\n\n    \u003csection id=\"product-overview\"\u003e\n      \u003ch2\u003eProduct Overview\u003c\/h2\u003e\n      \u003cp\u003eA water pump impeller is the flexible rotating component inside an outboard lower-unit water pump. As it turns, the blades move cooling water through the engine so the powerhead can maintain a safe operating temperature. A worn, cracked, or set impeller may reduce water flow and can contribute to overheating, especially after storage or seasonal use.\u003c\/p\u003e\n      \u003cp\u003eThis aftermarket replacement water pump impeller is designed for selected Mercury and Mariner 1-cylinder and 2-stroke outboard engines in the 3.5HP to 9.8HP range, with an additional fitment group covering certain Mercury 40 \/ 4HP 2-cylinder applications. The most reliable way to confirm compatibility is to match the original part number and physical measurements rather than relying on horsepower alone.\u003c\/p\u003e\n      \u003cdiv class=\"notice\"\u003e\n        \u003cp\u003e\u003cstrong\u003eBuyer fitment rule:\u003c\/strong\u003e Before purchase, compare your old impeller against the listed OEM numbers, internal shaft diameter, outside diameter, height, and your official parts diagram. Small outboards can use different pump components across similar years and horsepower ratings.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/section\u003e\n\n    \u003csection id=\"key-benefits\"\u003e\n      \u003ch2\u003eWhy Choose This Replacement Impeller?\u003c\/h2\u003e\n      \u003cp\u003eThis part is written for boat owners and marine technicians who need a clear replacement option for the Mercury 47-89980 \/ 47-68988 impeller family. The emphasis is on accurate fitment, practical cooling-system maintenance, and transparent aftermarket identification.\u003c\/p\u003e\n      \u003cdiv class=\"grid\"\u003e\n        \u003carticle class=\"benefit-card\"\u003e\n          \u003ch3\u003eSupports Consistent Cooling Water Flow\u003c\/h3\u003e\n          \u003cp\u003eThe 6-blade design is intended to restore water movement through compatible small Mercury and Mariner outboard cooling systems when the old impeller is worn, hardened, or damaged.\u003c\/p\u003e\n        \u003c\/article\u003e\n        \u003carticle class=\"benefit-card\"\u003e\n          \u003ch3\u003eBuilt with Marine-Appropriate Materials\u003c\/h3\u003e\n          \u003cp\u003eThe neoprene impeller body provides flexible blade action, while the brass hub gives the center bore a stable metal contact surface for the drive shaft.\u003c\/p\u003e\n        \u003c\/article\u003e\n        \u003carticle class=\"benefit-card\"\u003e\n          \u003ch3\u003eUseful for Preventive Maintenance\u003c\/h3\u003e\n          \u003cp\u003eImpeller replacement is commonly included in seasonal lower-unit service. Replacing a suspect impeller before failure can help reduce the risk of poor tell-tale flow and heat-related troubleshooting.\u003c\/p\u003e\n        \u003c\/article\u003e\n        \u003carticle class=\"benefit-card\"\u003e\n          \u003ch3\u003eClear Cross-Reference Identification\u003c\/h3\u003e\n          \u003cp\u003eThe page lists Mercury Marine and Sierra Marine reference numbers so buyers can compare the part against manuals, exploded diagrams, previous orders, and the markings on existing components.\u003c\/p\u003e\n        \u003c\/article\u003e\n      \u003c\/div\u003e\n    \u003c\/section\u003e\n\n    \u003csection id=\"part-number-cross-reference\"\u003e\n      \u003ch2\u003ePart Number Cross Reference\u003c\/h2\u003e\n      \u003cp\u003eThe following numbers are provided to help identify compatible applications. Brand names and part numbers are used only as fitment references for this aftermarket replacement impeller.\u003c\/p\u003e\n      \u003cdiv class=\"table-wrap\"\u003e\n        \u003ctable\u003e\n          \u003cthead\u003e\n            \u003ctr\u003e\n              \u003cth scope=\"col\"\u003eReference Brand\u003c\/th\u003e\n              \u003cth scope=\"col\"\u003ePart Number\u003c\/th\u003e\n              \u003cth scope=\"col\"\u003eHow to Use This Number\u003c\/th\u003e\n            \u003c\/tr\u003e\n          \u003c\/thead\u003e\n          \u003ctbody\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMercury Marine\u003c\/td\u003e\n              \u003ctd\u003e47-89980\u003c\/td\u003e\n              \u003ctd\u003eMatch against your parts diagram, previous impeller listing, or original service information.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMercury Marine\u003c\/td\u003e\n              \u003ctd\u003e47-68988\u003c\/td\u003e\n              \u003ctd\u003eAlternative Mercury reference number associated with this impeller family.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eSierra Marine\u003c\/td\u003e\n              \u003ctd\u003e18-3054\u003c\/td\u003e\n              \u003ctd\u003eAftermarket cross-reference number used for compatibility identification.\u003c\/td\u003e\n            \u003c\/tr\u003e\n          \u003c\/tbody\u003e\n        \u003c\/table\u003e\n      \u003c\/div\u003e\n    \u003c\/section\u003e\n\n    \u003csection id=\"technical-specifications\"\u003e\n      \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n      \u003cp\u003eUse the dimensions below as a practical confirmation checklist. The internal shaft diameter is especially important because this part is made for a 0.438 inch shaft application, not the 0.456 inch version used on some other small outboards.\u003c\/p\u003e\n      \u003cdiv class=\"table-wrap\"\u003e\n        \u003ctable\u003e\n          \u003cthead\u003e\n            \u003ctr\u003e\n              \u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n              \u003cth scope=\"col\"\u003eValue\u003c\/th\u003e\n              \u003cth scope=\"col\"\u003eFitment Note\u003c\/th\u003e\n            \u003c\/tr\u003e\n          \u003c\/thead\u003e\n          \u003ctbody\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eProduct Type\u003c\/td\u003e\n              \u003ctd\u003eOutboard water pump impeller\u003c\/td\u003e\n              \u003ctd\u003eCooling-system replacement component for compatible lower-unit water pumps.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eBlade Count\u003c\/td\u003e\n              \u003ctd\u003e6 blades\u003c\/td\u003e\n              \u003ctd\u003eCompare with the impeller removed from your pump housing.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eImpeller Height\u003c\/td\u003e\n              \u003ctd\u003e14.20 mm\u003c\/td\u003e\n              \u003ctd\u003eMeasure the old impeller height before ordering if fitment is uncertain.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eOverall Diameter\u003c\/td\u003e\n              \u003ctd\u003e31.91 mm\u003c\/td\u003e\n              \u003ctd\u003eCompare outside diameter against the original part.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eInternal Shaft Diameter\u003c\/td\u003e\n              \u003ctd\u003e11.13 mm \/ 0.438 inches\u003c\/td\u003e\n              \u003ctd\u003eNot suitable for 0.456 inch shaft applications.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMaterial\u003c\/td\u003e\n              \u003ctd\u003eNeoprene with brass hub\u003c\/td\u003e\n              \u003ctd\u003eFlexible impeller body with metal center hub.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eNet Weight\u003c\/td\u003e\n              \u003ctd\u003e11 g\u003c\/td\u003e\n              \u003ctd\u003eApproximate part weight.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003ePackage Contents\u003c\/td\u003e\n              \u003ctd\u003e1 × outboard water pump impeller\u003c\/td\u003e\n              \u003ctd\u003eNo additional gaskets, keys, plates, or housings are listed as included.\u003c\/td\u003e\n            \u003c\/tr\u003e\n          \u003c\/tbody\u003e\n        \u003c\/table\u003e\n      \u003c\/div\u003e\n    \u003c\/section\u003e\n\n    \u003csection id=\"compatible-engine-models\"\u003e\n      \u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n      \u003cp\u003eThis compatibility information is organized by engine group to help buyers quickly evaluate whether the impeller may match their Mercury or Mariner outboard. The final decision should always be based on the part number, official diagram, shaft diameter, and old impeller measurements.\u003c\/p\u003e\n      \u003cdiv class=\"table-wrap\"\u003e\n        \u003ctable\u003e\n          \u003cthead\u003e\n            \u003ctr\u003e\n              \u003cth scope=\"col\"\u003eEngine Group \/ Horsepower\u003c\/th\u003e\n              \u003cth scope=\"col\"\u003eYear Range\u003c\/th\u003e\n              \u003cth scope=\"col\"\u003eApplication Context\u003c\/th\u003e\n              \u003cth scope=\"col\"\u003eVerification Note\u003c\/th\u003e\n            \u003c\/tr\u003e\n          \u003c\/thead\u003e\n          \u003ctbody\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMercury 3.5HP\u003c\/td\u003e\n              \u003ctd\u003e1983–1985\u003c\/td\u003e\n              \u003ctd\u003eSelected small outboard applications.\u003c\/td\u003e\n              \u003ctd\u003eConfirm 47-89980 \/ 47-68988 and 0.438 inch I.D.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMercury 3.6HP\u003c\/td\u003e\n              \u003ctd\u003e1980–1982\u003c\/td\u003e\n              \u003ctd\u003eSelected small outboard applications.\u003c\/td\u003e\n              \u003ctd\u003eConfirm old impeller dimensions before ordering.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMercury 40 \/ 4HP 2-cylinder\u003c\/td\u003e\n              \u003ctd\u003eVarious 1979–1985\u003c\/td\u003e\n              \u003ctd\u003eCertain Mercury 40 \/ 4HP 2-cylinder listings in this impeller family.\u003c\/td\u003e\n              \u003ctd\u003eUse the parts diagram because naming can vary by market and model year.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMercury 4HP 1-cylinder\u003c\/td\u003e\n              \u003ctd\u003eVarious 1979–1985\u003c\/td\u003e\n              \u003ctd\u003eSelected 1-cylinder applications.\u003c\/td\u003e\n              \u003ctd\u003eVerify the shaft bore is 0.438 inch \/ 11.13 mm.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMercury \/ Mariner 4.5HP\u003c\/td\u003e\n              \u003ctd\u003eVarious 1979–1985\u003c\/td\u003e\n              \u003ctd\u003eSelected Mercury and Mariner small outboards.\u003c\/td\u003e\n              \u003ctd\u003eMatch OEM number and measure the old component.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMercury \/ Mariner 7.5HP\u003c\/td\u003e\n              \u003ctd\u003eVarious 1979–1985\u003c\/td\u003e\n              \u003ctd\u003eSelected Mercury and Mariner small outboards.\u003c\/td\u003e\n              \u003ctd\u003eConfirm parts diagram before purchase.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMercury \/ Mariner 9.8HP\u003c\/td\u003e\n              \u003ctd\u003eVarious 1979–1985\u003c\/td\u003e\n              \u003ctd\u003eSelected Mercury and Mariner small outboards.\u003c\/td\u003e\n              \u003ctd\u003eConfirm part number and dimensions.\u003c\/td\u003e\n            \u003c\/tr\u003e\n          \u003c\/tbody\u003e\n        \u003c\/table\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"warning\"\u003e\n        \u003cp\u003e\u003cstrong\u003eImportant shaft warning:\u003c\/strong\u003e This impeller is for a \u003cstrong\u003e0.438 inch\u003c\/strong\u003e internal shaft diameter. It is not compatible with \u003cstrong\u003e0.456 inch\u003c\/strong\u003e shaft applications, including some 5HP models. If your old impeller measures differently, do not assume fitment based only on horsepower.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/section\u003e\n\n    \u003csection id=\"installation-inspection-notes\"\u003e\n      \u003ch2\u003eInstallation and Inspection Notes\u003c\/h2\u003e\n      \u003cp\u003eThe following notes are general maintenance guidance and are not a replacement for the official service manual for your engine. If you are unsure about lower-unit disassembly or water pump service, consult a qualified marine technician.\u003c\/p\u003e\n      \u003col class=\"steps\"\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInspect related pump parts.\u003c\/strong\u003e Before installing the new impeller, check the pump housing, wear plate, gaskets, key, and cup for scoring, corrosion, or deformation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLubricate for assembly.\u003c\/strong\u003e A light coating of water-compatible lubricant or soapy water can help the neoprene blades seat into the pump housing during installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInstall the blades in the correct rotation.\u003c\/strong\u003e Follow the rotation direction used by your pump and service literature so the impeller vanes are folded correctly.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDo not dry run the engine.\u003c\/strong\u003e Never start the outboard without an adequate water supply. Dry running can quickly damage a new neoprene impeller.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCheck cooling flow after service.\u003c\/strong\u003e After installation, run the engine only with proper water supply and verify a steady tell-tale water stream. Shut the engine off promptly if the stream is weak or absent.\u003c\/li\u003e\n      \u003c\/ol\u003e\n    \u003c\/section\u003e\n\n    \u003csection id=\"faq\"\u003e\n      \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n      \u003cdetails\u003e\n        \u003csummary\u003eHow do I know if this impeller fits my Mercury or Mariner outboard?\u003c\/summary\u003e\n        \u003cp\u003eConfirm that your engine parts diagram or old impeller calls for Mercury Marine 47-89980, Mercury Marine 47-68988, or Sierra Marine 18-3054. Then verify that the original impeller uses a 0.438 inch \/ 11.13 mm internal shaft diameter and matches the listed height and outside diameter.\u003c\/p\u003e\n      \u003c\/details\u003e\n      \u003cdetails\u003e\n        \u003csummary\u003eIs this an OEM Mercury or Mariner part?\u003c\/summary\u003e\n        \u003cp\u003eNo. This Quickmarine product is an aftermarket replacement part. Mercury, Mariner, and Sierra names and part numbers are used only to identify compatible applications and are not intended to imply original equipment origin, endorsement, or affiliation.\u003c\/p\u003e\n      \u003c\/details\u003e\n      \u003cdetails\u003e\n        \u003csummary\u003eWhat comes in the package?\u003c\/summary\u003e\n        \u003cp\u003eThe package includes one outboard water pump impeller made from neoprene with a brass hub. Additional water pump kit components, such as gaskets, drive keys, wear plates, cups, or housings, are not listed as included.\u003c\/p\u003e\n      \u003c\/details\u003e\n      \u003cdetails\u003e\n        \u003csummary\u003eWhat are signs that an outboard impeller may need replacement?\u003c\/summary\u003e\n        \u003cp\u003eCommon warning signs include a weak or missing tell-tale stream, overheating alarms or high temperature, visible cracks or missing blade material on the old impeller, and reduced cooling flow after storage. Other cooling-system faults can cause similar symptoms, so inspect the complete pump assembly during service.\u003c\/p\u003e\n      \u003c\/details\u003e\n      \u003cdetails\u003e\n        \u003csummary\u003eHow often should a water pump impeller be replaced?\u003c\/summary\u003e\n        \u003cp\u003eReplacement intervals vary by engine, use pattern, water conditions, storage time, and service recommendations. Many owners inspect or replace impellers during seasonal maintenance, but the safest approach is to follow your engine service manual and inspect the part whenever cooling flow appears abnormal.\u003c\/p\u003e\n      \u003c\/details\u003e\n      \u003cdetails\u003e\n        \u003csummary\u003eWill this fit a Mercury 5HP outboard?\u003c\/summary\u003e\n        \u003cp\u003eDo not assume fitment for a 5HP model. This impeller is specifically for 0.438 inch shaft applications and is not compatible with 0.456 inch shafts, which are found on some 5HP models. Measure the shaft bore and verify the OEM part number before ordering.\u003c\/p\u003e\n      \u003c\/details\u003e\n    \u003c\/section\u003e\n\n    \u003csection id=\"disclaimer\"\u003e\n      \u003ch2\u003eImportant Compatibility and Trademark Disclaimer\u003c\/h2\u003e\n      \u003cp\u003eThis product is an \u003cstrong\u003eaftermarket replacement water pump impeller\u003c\/strong\u003e supplied under the Quickmarine brand. It is not an OEM Mercury, Mariner, or Sierra part.\u003c\/p\u003e\n      \u003cp\u003eMercury, Mariner, Sierra, and all related part numbers, model names, and trademarks are the property of their respective owners. They are referenced only to help buyers identify replacement compatibility. Quickmarine is not affiliated with, sponsored by, or endorsed by those manufacturers.\u003c\/p\u003e\n      \u003cp class=\"fine-print\"\u003eBefore ordering, verify your old part, OEM number, shaft diameter, engine model, model year, and official parts diagram. Fitment can vary across similar horsepower ratings and production years.\u003c\/p\u003e\n    \u003c\/section\u003e\n  \u003c\/main\u003e\n\n\n\u003c\/body\u003e","brand":"Quick Marine","offers":[{"title":"Default Title","offer_id":55243320197411,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/7384\/3747\/files\/47-8998047-6898818-3054.jpg?v=1781678875","url":"https:\/\/quickmarines.com\/products\/47-89980-water-pump-impeller-for-mercury-mariner-3-5-9-8hp-quickmarine","provider":"Quick Marine","version":"1.0","type":"link"}