{"product_id":"himarklif-thermostat-for-yamaha-outboard-motors-2-stroke-3hp-250hp-replacement","title":"HIMARKLIF Thermostat for Yamaha Outboard Motors | 2-Stroke 3HP-250HP Replacement","description":"\u003cp\u003eMeet the HIMARKLIF thermostat, designed to accompany Yamaha two-stroke outboard motors from 3HP to 250HP. Crafted with premium stainless steel and copper, it delivers robust heat transfer and enduring performance in demanding marine conditions. The mid seal uses NBR rubber for improved heat, corrosion, and oil resistance, and the seal is thicker to help ensure reliable sealing.\u003c\/p\u003e\n\u003cp\u003eReplacement part numbers such as 688-12411-10-00, 688-12411-11-00, 6H3-12411-11-00, 6E5-12411-30-00, 6E5-12411-20-00, 6E5-12411-10-00, 6E5-12411-02, and 6E5-12411-00 are supported, offering a precise match for a broad range of Yamaha models without extensive searching.\u003c\/p\u003e\n\u003ch2\u003eWide fitment for Yamaha 2-stroke outboards\u003c\/h2\u003e\n\u003cp\u003eThe thermostat is designed to fit Yamaha 2-stroke engines from 3HP up to 250HP, covering many model variants across multiple years. This broad compatibility aims to help you locate a suitable replacement that aligns with Yamaha specifications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3A, 4A, 5C, 6C\/D\/J, 8C\/J, 8MSH-0405, 8MSH-0406, 8MSH-0407\u003c\/li\u003e\n  \u003cli\u003e8MSHD-2005, 9.9B Enduro, 9.9C, 15B Enduro, 20D, 25A\/25B Enduro\u003c\/li\u003e\n  \u003cli\u003e30H, 40X Enduro, 150A\/ETN, 175A, 200A\/ETN, 220A, 250HP (1990-2004)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow it works and potential benefits\u003c\/h2\u003e\n\u003cp\u003eWhen the operating temperature reaches about 50°C, the thermostat begins to regulate flow. This behavior may help contribute to a more stable engine temperature and potentially support consistent operation and efficiency. It is designed to work within Yamaha system expectations and to withstand marine conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrecise temperature control for engine components\u003c\/li\u003e\n  \u003cli\u003eDurable materials built to endure saltwater and heat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEasy installation and care\u003c\/h2\u003e\n\u003cp\u003eManufactured to match Yamaha specifications for fit, form, and function, the kit is designed for straightforward installation and long service life. Following proper installation steps helps ensure a reliable seal and dependable operation when you’re out on the water.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What engines is this thermostat compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits Yamaha 2-stroke engines from 3HP to 250HP, covering many model variants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How does the thermostat activate and what does it help regulate?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Activates at about 50°C to help regulate engine temperature and support stable operation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HIMARKLIF","offers":[{"title":"Default Title","offer_id":42465320075349,"sku":"B0CKX5YWBK","price":27.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/himarklif-thermostat-yamaha-outboard-compatibility.jpg?v=1778003882","url":"https:\/\/plentytorque.co.uk\/products\/himarklif-thermostat-for-yamaha-outboard-motors-2-stroke-3hp-250hp-replacement","provider":"PlentyTorque","version":"1.0","type":"link"}