{"product_id":"merc-1182","title":"Mercury MerCruiser 160°F Thermostat - 8M0109441","description":"\u003cp\u003eThe \u003cstrong\u003eMercury MerCruiser Quicksilver 8M0109441\u003c\/strong\u003e is a genuine Mercury Marine OEM \u003cstrong\u003e160°F thermostat\u003c\/strong\u003e used in select MerCruiser sterndrive, inboard, and Mercury\/Mariner outboard cooling systems where the factory parts diagram calls for this thermostat. The thermostat regulates cooling-water or coolant flow through the engine so the motor can reach and maintain the correct operating temperature.\u003c\/p\u003e\n\u003cp\u003eThis thermostat opens at \u003cstrong\u003e160°F \/ 71°C\u003c\/strong\u003e and should be selected by exact engine serial number, cooling-system layout, and service manual specification before installation.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Mercury Marine OEM thermostat.\u003c\/li\u003e\n\u003cli\u003eMercury\/MerCruiser part number: \u003cstrong\u003e8M0109441\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eOperating temperature: \u003cstrong\u003e160°F \/ 71°C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eUPC \/ GTIN reference: \u003cstrong\u003e745061286467\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eUsed in select raw-water and closed-cooling systems where specified.\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper engine operating temperature.\u003c\/li\u003e\n\u003cli\u003eImportant service part for overheating, overcooling, slow warm-up, and stuck-thermostat symptoms.\u003c\/li\u003e\n\u003cli\u003eListed shipping specs: \u003cstrong\u003e0.19 lb\u003c\/strong\u003e, \u003cstrong\u003e3.63 in. L x 2.25 in. W x 2.63 in. H\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSupersedes earlier Mercury thermostat references in supported applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCommon application context includes select Mercury and MerCruiser engines where the factory parts diagram calls for \u003cstrong\u003e8M0109441\u003c\/strong\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelect \u003cstrong\u003eMerCruiser 3.0L inline-4\u003c\/strong\u003e applications where specified.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eMerCruiser 4.3L V6\u003c\/strong\u003e applications where specified.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eMerCruiser 5.0L and 5.7L V8\u003c\/strong\u003e applications where specified.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eMerCruiser 6.2L \/ 377 CID V8\u003c\/strong\u003e applications where specified.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eMerCruiser 7.4L \/ 454 CID\u003c\/strong\u003e and \u003cstrong\u003e8.2L \/ 502 CID\u003c\/strong\u003e applications where specified.\u003c\/li\u003e\n\u003cli\u003eSelect Alpha and Bravo sterndrive or inboard engine packages using the matching thermostat housing and temperature rating.\u003c\/li\u003e\n\u003cli\u003eSelect Mercury\/Mariner outboard applications only where the OEM parts diagram confirms \u003cstrong\u003e8M0109441\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse this thermostat only where the Mercury\/MerCruiser parts diagram or service manual specifically calls for \u003cstrong\u003e8M0109441\u003c\/strong\u003e or a confirmed replacement for the earlier thermostat reference.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eConfirm fitment by engine serial number, cooling-system type, thermostat housing style, gasket\/seal layout, and required opening temperature before ordering. Similar MerCruiser engines may use different thermostats depending on year, cooling configuration, emissions package, housing design, and whether the engine is raw-water cooled or closed-cooled.\u003c\/p\u003e\n\u003cp\u003eDo not substitute a \u003cstrong\u003e140°F\u003c\/strong\u003e thermostat or other temperature rating unless the engine service manual specifically calls for it.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace the thermostat if the engine runs too hot, runs too cool, takes too long to warm up, shows unstable operating temperature, overheats at idle, or fails thermostat testing. Replacement is also recommended during cooling-system service, thermostat housing repairs, corrosion cleanup, coolant contamination repairs, or when the thermostat is stuck open, stuck closed, corroded, scaled, or physically damaged.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eDrain the cooling system as required before removing the thermostat housing. Clean the thermostat seat and housing surfaces carefully, and replace the gasket, sleeve, seal, or O-ring shown in the same Mercury parts diagram. Do not reuse compressed, torn, or hardened sealing parts.\u003c\/p\u003e\n\u003cp\u003eInstall the thermostat in the correct orientation and use the torque specification from the MerCruiser service manual for the specific housing bolts. After installation, refill the cooling system as required, run the engine to operating temperature, check for leaks, and confirm stable temperature control.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8M0109441\u003c\/strong\u003e — current Mercury\/MerCruiser OEM part number\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8072522\u003c\/strong\u003e — earlier Mercury reference; verify by serial number and diagram\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e807252T2\u003c\/strong\u003e — earlier Mercury reference; verify by serial number and diagram\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e745061286467\u003c\/strong\u003e — UPC \/ GTIN reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eRelated Service Parts\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eDepending on the engine diagram, thermostat service may also require related sealing parts such as the thermostat housing gasket, sleeve, O-ring, or cover gasket. Always confirm the matching gasket and seal numbers by engine serial number before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThermostat temperature matters. A thermostat with the wrong opening temperature can cause poor warm-up, unstable idle quality, excess fuel use, overheating, or poor closed-cooling performance. Match the thermostat by \u003cstrong\u003eengine serial number and required temperature rating\u003c\/strong\u003e, then replace the surrounding gasket or seal at the same time to prevent repeat leaks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563915149348,"sku":"8M0109441","price":53.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/1a4b1502-7341-4607-969d-5e1b040bec49.png?v=1781288599","url":"https:\/\/marisolmarine.com\/products\/merc-1182","provider":"Marisol Marine Company","version":"1.0","type":"link"}