{"product_id":"merc-788","title":"Mercury Water Pump Gasket 858524","description":"\u003cp data-start=\"77\" data-end=\"487\"\u003eMercury 858524 is a genuine OEM \u003cstrong data-start=\"135\" data-end=\"156\"\u003ewater pump gasket\u003c\/strong\u003e for selected MerCruiser sterndrive and Mercury\/Mariner outboard applications. Mercury’s official listing says this gasket is used on \u003cstrong data-start=\"290\" data-end=\"340\"\u003eMerCruiser 1, R, MR, and Alpha One sterndrives\u003c\/strong\u003e and on \u003cstrong data-start=\"348\" data-end=\"448\"\u003eMercury and Mariner 65 HP (4-cylinder) through V6 outboards with short-vane water pump impellers\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"489\" data-end=\"507\"\u003e\u003cstrong data-start=\"489\" data-end=\"505\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"508\" data-end=\"850\"\u003e\n\u003cli data-start=\"508\" data-end=\"557\"\u003eGenuine Mercury Marine \/ Quicksilver OEM part\u003c\/li\u003e\n\u003cli data-start=\"558\" data-end=\"584\"\u003ePart number \u003cstrong data-start=\"572\" data-end=\"582\"\u003e858524\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"585\" data-end=\"626\"\u003eMercury catalog format: \u003cstrong data-start=\"611\" data-end=\"624\"\u003e27-858524\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"627\" data-end=\"721\"\u003eWater pump service gasket for selected sterndrive and outboard cooling-system applications\u003c\/li\u003e\n\u003cli data-start=\"722\" data-end=\"850\"\u003eMercury recommends replacing seals and gaskets when servicing or replacing the impeller. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"852\" data-end=\"1221\"\u003e\u003cstrong data-start=\"852\" data-end=\"876\"\u003eEngine Compatibility\u003c\/strong\u003e\u003cbr data-start=\"876\" data-end=\"879\"\u003eThis gasket is listed for \u003cstrong data-start=\"905\" data-end=\"955\"\u003eMerCruiser 1, R, MR, and Alpha One sterndrives\u003c\/strong\u003e in serial range \u003cstrong data-start=\"972\" data-end=\"992\"\u003e2495186–0D469858\u003c\/strong\u003e, plus \u003cstrong data-start=\"999\" data-end=\"1062\"\u003eMercury and Mariner 65 HP (4-cylinder) through V6 outboards\u003c\/strong\u003e using \u003cstrong data-start=\"1069\" data-end=\"1104\"\u003eshort-vane water pump impellers\u003c\/strong\u003e. Fitment should still be confirmed by model and serial number before ordering. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1223\" data-end=\"1523\"\u003e\u003cstrong data-start=\"1223\" data-end=\"1255\"\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003cbr data-start=\"1255\" data-end=\"1258\"\u003ePlease confirm compatibility in the Mercury Parts Catalog using your exact engine or drive serial number before purchase. Mercury’s catalog is the safest way to verify the correct water pump parts breakdown for the application. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1525\" data-end=\"1872\"\u003e\u003cstrong data-start=\"1525\" data-end=\"1561\"\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003cbr data-start=\"1561\" data-end=\"1564\"\u003eReplace this gasket whenever the water pump is opened for impeller service, or when the original gasket is torn, compressed, leaking, or no longer sealing properly. Mercury specifically advises changing seals and gaskets when servicing or replacing water pump impellers. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1874\" data-end=\"2157\"\u003e\u003cstrong data-start=\"1874\" data-end=\"1896\"\u003eInstallation Notes\u003c\/strong\u003e\u003cbr data-start=\"1896\" data-end=\"1899\"\u003eUse only the exact gasket specified for the water pump assembly being serviced. This part is commonly described as the \u003cstrong data-start=\"2018\" data-end=\"2045\"\u003eupper water pump gasket\u003c\/strong\u003e in MerCruiser Alpha applications, so exact serial-based matching matters. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2159\" data-end=\"2200\"\u003e\u003cstrong data-start=\"2159\" data-end=\"2198\"\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2201\" data-end=\"2344\"\u003e\n\u003cli data-start=\"2201\" data-end=\"2218\"\u003e\u003cstrong data-start=\"2203\" data-end=\"2216\"\u003e27-858524\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"2219\" data-end=\"2344\"\u003eSupersedes older Mercury part \u003cstrong data-start=\"2251\" data-end=\"2263\"\u003e27-32434\u003c\/strong\u003e according to dealer supersession listings. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2346\" data-end=\"2607\"\u003e\u003cstrong data-start=\"2346\" data-end=\"2368\"\u003eParts Desk Insight\u003c\/strong\u003e\u003cbr data-start=\"2368\" data-end=\"2371\"\u003eWater pump gaskets are small parts, but they are a smart replace-while-open item during impeller service. Using the correct OEM gasket helps keep the cooling system sealed properly after reassembly. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2609\" data-end=\"2674\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563886116900,"sku":"858524","price":6.03,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/mercury-mercruiser-water-pump-gasket.jpg?v=1775797030","url":"https:\/\/marisolmarine.com\/products\/merc-788","provider":"Marisol Marine Company","version":"1.0","type":"link"}