{"product_id":"apsg-90916-a3003-thermostat-with-gasket-for-toyota-lexus-scion-82-c-oe-fit-genuine-replacement","title":"APSG 90916-A3003 Thermostat with Gasket for Toyota Lexus Scion — 82°C OE Fit, Genuine Replacement","description":"\u003cstrong\u003eGenuine APSG 90916-A3003 thermostat with gasket is an OE-spec 82°C engine coolant thermostat designed to restore proper temperature regulation in compatible Lexus, Scion, and Toyota engines.\u003c\/strong\u003e\n\nThis genuine replacement thermostat assembles the valve and matching gasket to control coolant flow as the engine warms, helping the powertrain reach and hold its optimal operating temperature. Built to meet OEM fit and performance standards and produced using materials sourced from Japan with manufacturing in the USA, the part is intended as a direct swap for vehicles that specify the 90916-A3003 or 90916-03129. Installers should follow factory torque settings and service procedures to ensure a leak-free seal and correct operation.\n\n\u003ch3\u003eWhich vehicles use this 90916-A3003 thermostat?\u003c\/h3\u003e\n\u003cp\u003eThis thermostat is specified for select Toyota-family models including certain Lexus and Scion variants that require an 82°C (179.6°F) thermostat element. Fitment depends on engine code and model year, so verifying OEM part numbers or your vehicle’s service manual is recommended prior to purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect OE number: 90916-A3003 \/ 90916-03129 compatibility.\u003c\/li\u003e\n  \u003cli\u003eCommonly used across specific Toyota, Lexus, and Scion engine applications.\u003c\/li\u003e\n  \u003cli\u003eConfirm fitment by VIN or existing thermostat part number.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does an 82°C thermostat affect engine performance?\u003c\/h3\u003e\n\u003cp\u003eAn 82°C thermostat valve remains closed until coolant reaches that temperature, enabling the engine to warm to its intended operating range more quickly and then open to regulate temperature. Proper regulation supports consistent combustion efficiency and helps emissions control systems operate as designed without claiming medical or guaranteed outcomes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFaster warm-up reduces unnecessary fuel enrichment on cold starts.\u003c\/li\u003e\n  \u003cli\u003eStable operating temperature protects components from thermal stress.\u003c\/li\u003e\n  \u003cli\u003ePrecise opening temperature improves coolant flow control across conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check when replacing the thermostat?\u003c\/h3\u003e\n\u003cp\u003eWhen replacing the thermostat, inspect the gasket mating surfaces, coolant hoses, and housing for corrosion or warping to prevent leaks. Use the specified torque values for the housing bolts, and refill and bleed the cooling system per factory recommendations to avoid air pockets and overheating risks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplace the included gasket to ensure a proper seal.\u003c\/li\u003e\n  \u003cli\u003eCheck thermostat housing and bolts for damage or corrosion.\u003c\/li\u003e\n  \u003cli\u003eBleed the cooling system and verify thermostat opens at operating temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose a genuine APSG-made thermostat?\u003c\/h3\u003e\n\u003cp\u003eGenuine OEM-spec thermostats provide predictable fit and function compared with non-specified aftermarket parts. This APSG unit matches factory dimensions and calibrated opening temperature, helping installers save time and reduce potential drivability issues caused by incorrect parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManufactured to meet or exceed OEM tolerances and materials.\u003c\/li\u003e\n  \u003cli\u003eComes with the correct gasket to simplify installation.\u003c\/li\u003e\n  \u003cli\u003eMade with components sourced from Japan and assembled in the USA for consistent quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\nThis thermostat is for mechanics, DIY enthusiasts, and fleet maintenance teams who need a direct-fit OE replacement for cooling systems specified to use part 90916-A3003 \/ 90916-03129. If your vehicle’s maintenance schedule or a failed coolant temperature check points to a thermostat issue, choosing this APSG genuine part streamlines repair with known dimensions and an 82°C opening specification. Always confirm fitment for your exact model and follow vehicle manufacturer service instructions during replacement.\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 this thermostat a direct OEM replacement?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. APSG 90916-A3003 matches OE specifications and fits models that list 90916-A3003 or 90916-03129.\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: This unit is rated to open at 82°C (179.6°F), the factory-specified operating temperature.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"APSG","offers":[{"title":"Default Title","offer_id":48086774087838,"sku":"B0D67G77DV","price":53.39,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/apsg-thermostat-front-packaging.jpg?v=1785904550","url":"https:\/\/northtrailauto.ca\/products\/apsg-90916-a3003-thermostat-with-gasket-for-toyota-lexus-scion-82-c-oe-fit-genuine-replacement","provider":"North Trail Auto","version":"1.0","type":"link"}