{"product_id":"merc-628","title":"Mercury Quicksilver Thermostat 130°F – 8M0057307","description":"\u003ch2\u003eMercury Quicksilver Thermostat 130°F — 3.0L V6 OptiMax Outboard\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 8M0057307  |  \u003cstrong\u003eGTIN:\u003c\/strong\u003e 745061562318\u003cbr\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Mercury \/ Quicksilver  |  \u003cstrong\u003eTemperature Rating:\u003c\/strong\u003e 130°F \/ 54°C\u003c\/p\u003e\n\n\u003cp\u003eGenuine Mercury Quicksilver OEM 130°F thermostat for selected 3.0L V6 Mercury OptiMax outboards. Self-cleaning design allows contaminants to flush through the thermostat’s closing surfaces, helping to maintain reliable operation in marine environments.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercury 200 HP 3.0L V6 DFI \/ OptiMax — S\/N 1B227000 and higher (non-Pro models)\u003c\/li\u003e\n\u003cli\u003eMercury 225 HP 3.0L V6 DFI \/ OptiMax — S\/N 1B227000 and higher (non-Pro models)\u003c\/li\u003e\n\u003cli\u003eAdditional 3.0L V6 OptiMax applications — verify by serial number and model\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eRacing and Pro-series 3.0L\/3.2L engines may also reference this part through superseded numbers. Confirm engine serial number and model before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhen This Part Needs Replacement\u003c\/h3\u003e\n\u003cp\u003eReplace the thermostat when cooling-system diagnosis shows it is sticking open or closed, when the engine is running outside its normal operating-temperature range, or when thermostat replacement is called for during scheduled cooling-system maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eAllow the engine to cool completely before beginning service. Inspect the thermostat cavity, cover, and sealing surfaces for corrosion or debris. Thermostat gaskets are separate items on applicable cylinder-head assemblies — inspect and replace sealing components as required. Follow the applicable Mercury outboard service manual for torque specifications and procedures.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11141366054948\"\u003eSierra 9253 Outboard Maintenance Kit | Mercury V6 OptiMax 3.0L (S\/N 1B227000+, Non-Pro)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11141365989412\"\u003eSierra 9252 Outboard Maintenance Kit | Mercury V6 OptiMax 2.5L (S\/N 1B227000+, Non-Pro)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAlternate \u0026amp; Superseded Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCurrent OEM: 8M0057307\u003c\/li\u003e\n\u003cli\u003eSupersedes: 8855991\u003c\/li\u003e\n\u003cli\u003eSupersedes: 885599003\u003c\/li\u003e\n\u003cli\u003eSupersedes: 885599004\u003c\/li\u003e\n\u003cli\u003eSierra cross-reference: 18-3535\u003c\/li\u003e\n\u003cli\u003eGTIN: 745061562318\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe key identifiers for 8M0057307 are \u003cstrong\u003e130°F\u003c\/strong\u003e and \u003cstrong\u003e3.0L V6 OptiMax\u003c\/strong\u003e. Several older Mercury thermostat numbers supersede to this current part, so matching the original number and engine serial range is the safest fitment check. A common question is whether this thermostat fits Pro XS or racing 3.0L\/3.2L engines — those applications should be verified by serial number, as they may use the same current number through a different supersession path but have different installation requirements.\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":51324693512228,"sku":"8M0057307","price":207.68,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/859950f6-e2d1-45d4-a89d-74b53e33d13f.png?v=1788213973","url":"https:\/\/marisolmarine.com\/products\/merc-628","provider":"Marisol Marine Company","version":"1.0","type":"link"}