{"product_id":"apsg-engine-coolant-thermostat-90916-a3003-with-gasket-82-c-oe-fit-for-toyota-lexus-scion-direct-replacement","title":"APSG Engine Coolant Thermostat 90916-A3003 with Gasket — 82°C OE-Fit for Toyota\/Lexus\/Scion, Direct Replacement","description":"\u003cb\u003eAPSG Genuine 90916-A3003 is an OE-spec 82°C engine coolant thermostat with gasket, made to restore correct coolant flow and temperature control in compatible Toyota, Lexus, and Scion engines.\u003c\/b\u003e\n\n\u003cp\u003eWhen your engine needs predictable warm-up behavior and stable operating temperature, replacing a worn thermostat with a direct-fit OEM unit is a straightforward repair. This APSG Genuine 90916-A3003 thermostat includes the gasket required for installation and matches the original 82°C (179.6°F) temperature rating used by many Toyota-family engines. Built with materials sourced from Japan and assembled in the USA, it’s intended to meet factory tolerances for fit and function so the cooling system behaves as designed.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this thermostat affect engine warm-up and fuel efficiency?\u003c\/h3\u003e\n\u003cp\u003eA properly functioning thermostat ensures the engine reaches and holds its designed operating temperature quickly, which supports efficient combustion and emission control. If the thermostat sticks open, the engine runs colder and uses more fuel; if it sticks closed, overheating risk rises. Replacing a marginal thermostat with this genuine unit helps restore expected warm-up times and engine management behavior.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOE 82°C temperature rating for original warm-up characteristics\u003c\/li\u003e\n  \u003cli\u003ePrecise valve action reduces temperature fluctuation\u003c\/li\u003e\n  \u003cli\u003eDurable construction resists wear for consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this part fit my Lexus, Scion, or Toyota model?\u003c\/h3\u003e\n\u003cp\u003eThis thermostat is supplied as the genuine part number 90916-A3003 and is compatible with a range of Toyota-family vehicles. Fitment can vary by engine code and model year, so confirming vehicle compatibility with the provided part number is essential before installation. Use your vehicle details to verify correct fitment rather than relying only on make or model name.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContains OEM part number 90916-A3003 for accurate cross-referencing\u003c\/li\u003e\n  \u003cli\u003eIncludes aftermarket gasket sized to match the thermostat housing\u003c\/li\u003e\n  \u003cli\u003eFitment verification recommended using VIN or engine code\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and maintenance?\u003c\/h3\u003e\n\u003cp\u003eInstallation follows typical thermostat replacement procedures: drain coolant to a safe level, remove the thermostat housing, swap the old thermostat for the new unit with its gasket, and refill the cooling system. Torque specifications and proper sealing are important to prevent leaks. After installation, bleed air from the cooling system per the vehicle manufacturer’s recommendations to avoid hot spots and ensure accurate temperature readings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes gasket to simplify sealing and reduce need for additional parts\u003c\/li\u003e\n  \u003cli\u003eFollow vehicle torque specs to prevent housing damage and leaks\u003c\/li\u003e\n  \u003cli\u003eBleed system and check for stable temperature on test drive\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose a genuine APSG \/ OEM thermostat over aftermarket alternatives?\u003c\/h3\u003e\n\u003cp\u003eGenuine parts are made to the original design dimensions and temperature calibration, which minimizes fitment issues and mismatch with engine sensors and cooling passages. Using an OEM-spec thermostat reduces the risk of intermittent temperature faults that can trigger warning lights or affect engine control strategies. APSG’s supply chain combines Japanese-sourced materials with USA assembly to meet consistent quality standards.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFactory temperature calibration (82°C) for predictable behavior\u003c\/li\u003e\n  \u003cli\u003eManufactured to OEM tolerances to ensure proper sealing and fit\u003c\/li\u003e\n  \u003cli\u003ePackaged with gasket to replace the entire thermostat assembly at once\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The APSG Genuine 90916-A3003 thermostat with gasket is intended for owners, mechanics, and fleet technicians who need a direct-replacement cooling system component for compatible Toyota, Lexus, and Scion vehicles. It’s suitable for anyone restoring proper engine warm-up, addressing temperature-related performance or diagnostic issues, or performing preventive maintenance on vehicles that specify the 82°C thermostat. Always verify fitment for your exact model and follow manufacturer's installation instructions for best results.\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 90916-A3003 thermostat the original equipment part?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This APSG unit is the genuine OEM part number 90916-A3003, supplied with a gasket for direct replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What temperature does this thermostat open at?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The thermostat is rated for 82°C (179.6°F) opening temperature to match factory specifications.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"APSG","offers":[{"title":"Default Title","offer_id":55168479068503,"sku":"B0D67G77DV","price":52.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/apsg-thermostat-front-view.jpg?v=1790405077","url":"https:\/\/britishgarage.co.uk\/products\/apsg-engine-coolant-thermostat-90916-a3003-with-gasket-82-c-oe-fit-for-toyota-lexus-scion-direct-replacement","provider":"British Garage","version":"1.0","type":"link"}