{"product_id":"sierra-18-43052-thermostat-kit-for-mercury-6-25-hp-2-stroke-outboards-replaces-14586a3-75962a9","title":"Sierra Thermostat Kit 18-43052, Replaces 14586A3, Fits Mercury 6-25 HP 2-Stroke Outboards","description":"\u003cp\u003eThe Sierra 18-43052 Thermostat Kit is a replacement engine thermostat built for Mercury 6-25 hp two-stroke outboard engines. As the powerhead's coolant regulator, the thermostat controls when raw water begins circulating through the cooling passages, helping the engine reach and hold its correct operating temperature. A thermostat that has failed open, closed, or is sticking is a common cause of overheating alarms, poor idle performance, or an engine that never comes up to temperature, and replacing it is a routine maintenance step for outboard owners.\u003c\/p\u003e\u003cp\u003eThis Sierra kit is manufactured as a direct equivalent to several Mercury Quicksilver thermostat part numbers, making it a straightforward drop-in replacement without needing to source the original OEM number. It is packaged under Sierra part number 18-43052 and is designed specifically for the 6-25 hp 2-Stroke Mercury outboard range.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-43052\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Thermostat Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Thermostat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercury 6-25 hp 2-Stroke outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 14586A3, 75962A9, 75962A10, 75962A11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282342005\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury 6-25 hp 2-Stroke outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e14586A3\u003c\/li\u003e\n\u003cli\u003e75962A9\u003c\/li\u003e\n\u003cli\u003e75962A10\u003c\/li\u003e\n\u003cli\u003e75962A11\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-43052 thermostat kit fit?\u003c\/strong\u003e The 18-43052 kit fits Mercury 6-25 hp 2-Stroke outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does 18-43052 replace?\u003c\/strong\u003e This thermostat kit replaces Mercury part numbers 14586A3, 75962A9, 75962A10, and 75962A11.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the 18-43052 kit?\u003c\/strong\u003e The 18-43052 kit includes the replacement thermostat for covered Mercury 6-25 hp 2-Stroke outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-43052 thermostat kit weigh?\u003c\/strong\u003e It weighs 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-43052 a genuine Sierra part or a generic aftermarket copy?\u003c\/strong\u003e It is manufactured by Sierra under part number 18-43052 and is built as a direct cross-reference replacement for the listed Mercury OEM thermostat numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this thermostat for a 2-stroke or 4-stroke engine?\u003c\/strong\u003e The 18-43052 is designated for 2-Stroke Mercury outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat horsepower range does the 18-43052 cover?\u003c\/strong\u003e It covers Mercury 6-25 hp outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow can I confirm I'm ordering the correct thermostat?\u003c\/strong\u003e Match the UPC 808282342005 or Sierra part number 18-43052 against your engine's original thermostat packaging to confirm fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-43052 install in the same location as the original Mercury thermostat?\u003c\/strong\u003e Yes, since it is a direct replacement for Mercury numbers 14586A3, 75962A9, 75962A10, and 75962A11, the 18-43052 installs in place of the original thermostat on covered 6-25 hp 2-Stroke engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-43052 fit other outboard brands besides Mercury?\u003c\/strong\u003e No, the fitment listed for 18-43052 is Mercury 6-25 hp 2-Stroke outboard engines only.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988178612443,"sku":"SIE-18-43052","price":42.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-43052__70829.1655217766.500.750.jpg?v=1785188614","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-43052-thermostat-kit-for-mercury-6-25-hp-2-stroke-outboards-replaces-14586a3-75962a9","provider":"Good Vibes Marina","version":"1.0","type":"link"}