{"product_id":"honda-marine-thermostat-19301-paa-306-oem-replacement-japan-direct-fit-cooling-valve-reliable-temperature-control","title":"Honda Marine Thermostat 19301-PAA-306 OEM Replacement (Japan) — Direct-Fit Cooling Valve, Reliable Temperature Control","description":"\u003cp\u003e\u003cstrong\u003eThe Honda 19301-PAA-306 thermostat is an OEM replacement cooling valve designed to regulate your Honda marine engine’s operating temperature reliably.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your outboard or marine engine runs too hot or too cold, the thermostat is the small but crucial component that opens and closes to maintain proper coolant flow. This specific part, stamped with part number 19301-PAA-306, is manufactured in Japan to Honda specifications and fits compatible Honda marine engine models. It’s compact, lightweight, and intended as a direct-fit replacement so you can return your engine to correct thermal performance without extensive modifications.\u003c\/p\u003e\n\n\u003ch3\u003eWhat role does this thermostat play in my Honda marine engine?\u003c\/h3\u003e\n\u003cp\u003eThe thermostat senses coolant temperature and modulates flow to keep the engine within its optimal operating range. When cold, it stays closed to allow faster warm-up; as temperature rises, it opens to let coolant circulate and prevent overheating.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaintains steady engine temperature for efficient performance\u003c\/li\u003e\n  \u003cli\u003eReduces wear caused by excessive heat or prolonged cold running\u003c\/li\u003e\n  \u003cli\u003eDirect-fit OEM part ensures compatibility and correct function\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the Honda 19301-PAA-306 thermostat?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically straightforward for anyone comfortable with basic marine engine maintenance. Remove the thermostat housing, replace the old thermostat with the new unit oriented per Honda instructions, and reassemble using proper gaskets and torque settings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRequires basic hand tools and gasket sealant or a new gasket\u003c\/li\u003e\n  \u003cli\u003eFollow Honda torque specs to avoid housing damage or leaks\u003c\/li\u003e\n  \u003cli\u003eRecheck coolant lines and run the engine to confirm correct operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow can I confirm this is the correct replacement part?\u003c\/h3\u003e\n\u003cp\u003eMatch the part number 19301-PAA-306 and verify compatibility against your engine model and year. OEM packaging and markings indicate authenticity and that the thermostat was produced to Honda’s quality standards in Japan.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompare part number on your old thermostat or parts diagram\u003c\/li\u003e\n  \u003cli\u003eCheck physical dimensions against the housing footprint before installation\u003c\/li\u003e\n  \u003cli\u003ePurchase from trusted suppliers or dealers to ensure genuine Honda parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the part’s physical details and origin?\u003c\/h3\u003e\n\u003cp\u003eThe thermostat ships in a small, lightweight package that’s easy to store or carry aboard. Honda lists the package dimensions and weight, and the unit is manufactured in Japan to meet OEM tolerances.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePackage size: approximately 2.01 x 5.75 x 5 inches\u003c\/li\u003e\n  \u003cli\u003ePackage weight: about 1 pound for shipping and handling\u003c\/li\u003e\n  \u003cli\u003eCountry of origin: Japan; part number: 19301-PAA-306\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Recreational boat owners, professional mariners, and marine technicians who need a reliable OEM thermostat to restore proper engine temperature control. If you operate a Honda outboard or marine engine and are experiencing overheating, extended warm-up times, or have a scheduled maintenance interval calling for a thermostat replacement, this genuine Honda part provides a straightforward, manufacturer-specified solution without guesswork.\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: Is the 19301-PAA-306 an OEM Honda part?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, 19301-PAA-306 is an OEM Honda thermostat manufactured in Japan to Honda specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this thermostat fit my Honda outboard?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check your engine parts list or match the part number 19301-PAA-306 to confirm compatibility with your model and year.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Honda","offers":[{"title":"Default Title","offer_id":48082972835998,"sku":"B009G4EKXY","price":54.47,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/honda-19301-paa-306-front-packaging.jpg?v=1785821183","url":"https:\/\/northtrailauto.ca\/products\/honda-marine-thermostat-19301-paa-306-oem-replacement-japan-direct-fit-cooling-valve-reliable-temperature-control","provider":"North Trail Auto","version":"1.0","type":"link"}