{"product_id":"sierra-18-3544-marine-thermostat-for-johnson-evinrude-outboards-replaces-oem-435491-fits-e75-e175-j90-j175-1991-2006","title":"Sierra Thermostat 18-3544, Replaces OEM 435491, for Evinrude and Johnson Outboards","description":"\u003cp\u003eThe Sierra 18-3544 is a replacement thermostat engineered for Johnson and Evinrude outboard engines. It is a metal, temperature-regulating component that controls coolant flow through the engine's cooling system, helping the powerhead reach and hold proper operating temperature. As a direct replacement part, the Sierra 18-3544 is built to meet or exceed the performance of the original equipment thermostat it replaces.\u003c\/p\u003e\u003cp\u003eThis thermostat directly replaces OEM part number 435491 and is applicable across a range of Evinrude E-series and Johnson J-series outboard models and model years, as listed below. It ships as the thermostat component only.\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 18-3544\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Thermostat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282227555\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 435491\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEvinrude: E100 (2004-06), E110 (04-06), E115 (2002-06), E75 (2002-03), E90 (2002-03), E150 (1991-94), E175 (1991-94)\u003c\/li\u003e\n\u003cli\u003eJohnson: J105 (2003), J115 (2002-06), J150 (1991-92, 1993-94, 2002-06), J175 (1991-92, 1994, 2002-06), J90 (2004-06)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e435491\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-3544 thermostat replace?\u003c\/strong\u003e The Sierra 18-3544 replaces OEM part number 435491.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich outboard engines is the 18-3544 thermostat designed for?\u003c\/strong\u003e It is designed for Johnson and Evinrude outboard engines, including Evinrude E100, E110, E115, E75, E90, E150, and E175 models, and Johnson J105, J115, J150, J175, and J90 models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3544 fit the Evinrude E175?\u003c\/strong\u003e Yes, the Sierra 18-3544 thermostat fits the Evinrude E175 for model years 1991-94.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3544 fit the Johnson J150?\u003c\/strong\u003e Yes, it fits the Johnson J150 for model years 1991-92, 1993-94, and 2002-06.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-3544 thermostat made of?\u003c\/strong\u003e The 18-3544 thermostat is constructed of metal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3544 thermostat weigh?\u003c\/strong\u003e The Sierra 18-3544 thermostat weighs 0.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3544 a genuine Sierra part or an aftermarket equivalent?\u003c\/strong\u003e The 18-3544 is a genuine Sierra-branded replacement thermostat, built to meet or exceed the performance of the original OEM 435491 thermostat it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3544 come with a gasket?\u003c\/strong\u003e No, the 18-3544 includes only the thermostat itself; no gasket is included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3544 the same as the Sierra 18-3546?\u003c\/strong\u003e No, the 18-3546 is a separate 130 degree F thermostat for different Evinrude and Johnson models (E200, E225, E250, J200, J225, J250) and is not interchangeable with the 18-3544.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3544 thermostat?\u003c\/strong\u003e The UPC for the Sierra 18-3544 thermostat is 808282227555.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-3544 work on both Johnson and Evinrude outboards?\u003c\/strong\u003e Yes, the Sierra 18-3544 is engineered to fit specific Johnson and Evinrude outboard models as listed in its fitment, since Johnson and Evinrude share compatible thermostat designs for these engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3544 fit the Evinrude E115?\u003c\/strong\u003e Yes, the 18-3544 fits the Evinrude E115 for model years 2002-06.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988151513307,"sku":"SIE-18-3544","price":25.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3544_lg__75173.1558126290.500.750.jpg?v=1785189190","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3544-marine-thermostat-for-johnson-evinrude-outboards-replaces-oem-435491-fits-e75-e175-j90-j175-1991-2006","provider":"Good Vibes Marina","version":"1.0","type":"link"}