{"product_id":"mercury-8m0228544-thermostat-assembly","title":"Mercury 8M0228544 Thermostat assembly (upper) - 350-400hp 5.7L V10 FourStroke","description":"\u003ch2\u003eMercury 8M0228544 Upper Thermostat Assembly 350-400HP 5.7L V10 FourStroke\u003c\/h2\u003e\n\u003cp\u003eThe Mercury 8M0228544 upper thermostat assembly is designed for select 350-400HP 5.7L V10 FourStroke outboards. This thermostat helps regulate engine cooling temperature for proper performance and efficiency on supported V10 applications. Published fitment references identify this part as an upper thermostat assembly for 5.7L V10 Verado applications and note that it is sold individually.\u003c\/p\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eFits select Mercury 5.7L V10 350-400HP FourStroke outboards.\u003c\/p\u003e\n\u003cp\u003ePublished fitment references support Mercury 5.7L V10 350-400HP Verado FourStroke applications.\u003c\/p\u003e\n\u003cp\u003ePublished serial-specific fitment references list 3B266064 and above.\u003c\/p\u003e\n\n\u003ch3\u003eShipping\u003c\/h3\u003e\n\u003cp\u003eShips as one Mercury 8M0228544 upper thermostat assembly.\u003c\/p\u003e\n\n\u003ch3\u003eKey Facts\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand: \u003c\/strong\u003eMercury\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number: \u003c\/strong\u003e8M0228544\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type: \u003c\/strong\u003eUpper Thermostat Assembly\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Family: \u003c\/strong\u003eMercury 5.7L V10 FourStroke outboards\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHorsepower Range: \u003c\/strong\u003e350-400HP\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Verado Fitment: \u003c\/strong\u003e350-400HP 5.7L V10 Verado\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Serial Range: \u003c\/strong\u003e3B266064 and up\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature Rating: \u003c\/strong\u003e143 degrees F \/ 62 degrees C\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSold As: \u003c\/strong\u003eIndividual unit\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity Required: \u003c\/strong\u003e2 on supported applications\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded: \u003c\/strong\u003eOne upper thermostat assembly\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded Part Number: \u003c\/strong\u003e8M0228544\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot Included: \u003c\/strong\u003eAdditional thermostat assembly required for engines that use two\u003c\/p\u003e\n\n\u003ch3\u003eService Notes\u003c\/h3\u003e\n\u003cp\u003eSold individually.\u003c\/p\u003e\n\u003cp\u003eTwo are required on published supported 5.7L V10 Verado applications.\u003c\/p\u003e\n\u003cp\u003eSome published references show this part as superseding 8M0205186.\u003c\/p\u003e\n\u003cp\u003eSome published retailer references also note one-time-use Oetiker clamps may be required during replacement.\u003c\/p\u003e\n\u003cp\u003eVerify exact fitment by engine family, horsepower, serial number, and thermostat location before ordering.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":48097224524008,"sku":"8M0228544","price":105.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/9927\/6776\/files\/8M0228544.webp?v=1773504538","url":"https:\/\/wakeboss.com\/products\/mercury-8m0228544-thermostat-assembly","provider":"Wakeboss","version":"1.0","type":"link"}