{"product_id":"water-pump-impeller-kit-fits-mercury-mariner-30-70-hp-2-stroke-replaces-47-89983q1-47-89983t2","title":"Water Pump Impeller Kit – Fits Mercury\/Mariner 30–70 HP 2-Stroke (Replaces 47-89983Q1, 47-89983T2)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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 Impeller Kit – Fits Mercury\/Mariner Outboard 30–70 HP 2-Stroke (Replaces 47-89983Q1, 47-89983T2)\u003c\/strong\u003e is designed for a precise fit on Mercury and Mariner 2-stroke outboard engines from 30 HP to 70 HP, covering models manufactured between 1970 and 1997. It ensures your engine’s cooling system operates efficiently by replacing worn or damaged components.\u003c\/p\u003e\n\u003cp\u003eThis kit serves as a direct interchange for Mercury\/Mariner part numbers 47-89983, 47-89983T, 47-89983T1, 47-89983T2, and 47-89983Q1, as well as Sierra 18-3207, GLM 89830, and Mallory 9-45300.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered for direct OEM-replacement installation.\u003c\/li\u003e\n\u003cli\u003eComplete nine-piece kit includes the impeller, housing, gaskets, and seals.\u003c\/li\u003e\n\u003cli\u003eRestores cooling system performance and reliability.\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      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n        \u003ctd\u003e47-89983T2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n        \u003ctd\u003e47-89983T1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n        \u003ctd\u003e47-89983T\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n        \u003ctd\u003e47-89983\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-3207\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e89830\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9-45300\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\u003cp\u003eFor Mercury Marine and Mariner outboards, verify your engine’s serial number (S\/N) falls within the specified range for your model and year to ensure a perfect match.\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\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\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\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e30\u003c\/td\u003e\n        \u003ctd\u003e30\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1971–1978\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 1271884-1448139\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e30 JET\u003c\/td\u003e\n        \u003ctd\u003e30\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1989–1997\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N C159200-G589999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e35\u003c\/td\u003e\n        \u003ctd\u003e35\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1984–1989\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 1571114 \u0026amp; Up, 6445653 \u0026amp; Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e40 (2 cylinder)\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1983\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 2874704-6445653, Models 400, 402\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e40 (4 cylinder)\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1989–1997\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N C159200 \u0026amp; Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e45 (4 cylinder)\u003c\/td\u003e\n        \u003ctd\u003e45\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1980–1989\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 5531630 \u0026amp; Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e50 (4 cylinder)\u003c\/td\u003e\n        \u003ctd\u003e50\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1987\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 1521914-4962055, Model 500\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e50 (4 cylinder)\u003c\/td\u003e\n        \u003ctd\u003e50\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1978–1989\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 4962056 \u0026amp; Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e50 (3 cylinder)\u003c\/td\u003e\n        \u003ctd\u003e50\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1984–1990\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 6428681-D000749\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e60 (3 cylinder)\u003c\/td\u003e\n        \u003ctd\u003e60\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1984–1990\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 6428681-D000749\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e65 (3 cylinder)\u003c\/td\u003e\n        \u003ctd\u003e65\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1976–1979\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 3293184-4571651, Model 650\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e70 (3 cylinder)\u003c\/td\u003e\n        \u003ctd\u003e70\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1977–1983\u003c\/td\u003e\n        \u003ctd\u003e47-89983Q1\u003c\/td\u003e\n        \u003ctd\u003eS\/N 4571652-B110053\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\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater Pump Impeller Kit\/Water Pump Repair Kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM replacement\u003c\/dd\u003e\n  \u003cdt\u003eKit Contents\u003c\/dt\u003e\n\u003cdd\u003eNine-piece water pump repair kit that includes impeller, gaskets, and seals\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e1 x Water Pump Impeller (Replaces Sierra 18-3007)\u003c\/li\u003e\n    \u003cli\u003e1 x Upper Pump Housing (Replaces Sierra 18-3118)\u003c\/li\u003e\n    \u003cli\u003e1 x Drain Gasket (Replaces Sierra 18-2945)\u003c\/li\u003e\n    \u003cli\u003e1 x Lower Water Pump Base To Face Plate Gasket (Replaces Sierra 18-2823)\u003c\/li\u003e\n    \u003cli\u003e1 x Upper Face Plate To Body Gasket (Replaces Sierra 18-2824)\u003c\/li\u003e\n    \u003cli\u003e1 x Water Pump Seal (Replaces Sierra 18-2825)\u003c\/li\u003e\n    \u003cli\u003e1 x Seal for drain\/fill plugs\u003c\/li\u003e\n    \u003cli\u003e1 x Collar for water pump tube\u003c\/li\u003e\n    \u003cli\u003e1 x Coupler for water pump tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n    \u003cli\u003eDisconnect the battery and shift the outboard into neutral.\u003c\/li\u003e\n    \u003cli\u003ePlace a drain pan under the lower unit and remove the gearcase drain\/fill screws to drain the lubricant.\u003c\/li\u003e\n    \u003cli\u003eRemove the bolts securing the lower unit (gearcase) to the upper leg. Carefully separate the lower unit.\u003c\/li\u003e\n    \u003cli\u003eUnbolt and remove the old water pump housing assembly. Note the orientation of the old impeller vanes.\u003c\/li\u003e\n    \u003cli\u003eThoroughly clean the mounting surfaces, removing any old gasket material or sealant.\u003c\/li\u003e\n    \u003cli\u003eInstall the new gaskets, face plate, impeller (with vanes oriented correctly), and housing. Lubricate new components with a marine-safe grease.\u003c\/li\u003e\n    \u003cli\u003eRe-install the lower unit, ensuring the driveshaft, shift shaft, and water tube are properly aligned.\u003c\/li\u003e\n    \u003cli\u003eRe-fill the gearcase with the correct type and amount of lubricant.\u003c\/li\u003e\n    \u003cli\u003eBefore starting the engine, use a flushing attachment to supply water to the lower unit and check for a strong water stream from the tell-tale outlet.\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 needs replacing?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs of a failing water pump include the engine overheating, a weak or non-existent water stream from the tell-tale outlet, or finding a cracked, brittle, or deformed impeller during a routine inspection. It is best practice to replace the impeller every 100 operating hours or at least once per boating season.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow can I be sure this kit fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eThis kit is designed for a wide array of Mercury and Mariner models. To guarantee fitment, please locate your engine's model, year, and serial number, and compare it against the detailed information in the \"Engine \u0026amp; Model Compatibility\" table on this page.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this kit include the pump housing?\u003c\/summary\u003e\n  \u003cp\u003eYes, this is a comprehensive water pump repair kit. It includes the upper pump housing, impeller, face plate, gaskets, seals, and other hardware as detailed in the \"What's in the Box\" section.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between all the superseded Mercury part numbers?\u003c\/summary\u003e\n  \u003cp\u003ePart numbers like 47-89983T2 and 47-89983Q1 often represent minor revisions, material updates, or different packaging configurations from the OEM over the years. This aftermarket kit is engineered to be a direct replacement for all listed equivalent part numbers.\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 vs 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\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723966681403,"sku":"19KM002","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Mercury_35-70_HP_47-89983T2_-_JLM_MARINE-8289860.jpg?v=1763038641","url":"https:\/\/seasierra.com\/products\/water-pump-impeller-kit-fits-mercury-mariner-30-70-hp-2-stroke-replaces-47-89983q1-47-89983t2","provider":"SeaSierra","version":"1.0","type":"link"}