{"product_id":"genuine-03l121111q-engine-coolant-thermostat","title":"Genuine 03L121111Q Engine Coolant Thermostat","description":"\u003ch2\u003eReliable Engine Coolant Thermostat for Volkswagen Passat\u003c\/h2\u003e\u003cp\u003eThe Genuine 03L121111Q engine coolant thermostat is designed specifically for Volkswagen Passat models. This thermostat helps regulate engine temperature, ensuring optimal performance and preventing overheating or excessive cooling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement part number 03L121111Q for Volkswagen Passat\u003c\/li\u003e\n\u003cli\u003eEngine coolant thermostat designed to maintain precise engine temperature\u003c\/li\u003e\n\u003cli\u003eCompatible with Volkswagen Passat cooling systems\u003c\/li\u003e\n\u003cli\u003eManufactured by Genuine for reliable fit and function\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThis Genuine engine coolant thermostat (part number 03L121111Q) is engineered to meet the exact specifications of Volkswagen Passat vehicles. It controls the flow of coolant to the engine, allowing the engine to reach and maintain the correct operating temperature. Proper thermostat function is critical for engine efficiency, emissions control, and fuel economy. This thermostat is compatible with various Volkswagen Passat model years that require this specific part number.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine overheating by regulating coolant flow\u003c\/li\u003e\n\u003cli\u003eHelps avoid engine running too cold, which can reduce efficiency\u003c\/li\u003e\n\u003cli\u003eResolves issues related to inconsistent engine temperature readings\u003c\/li\u003e\n\u003cli\u003eAddresses heater core problems caused by thermostat failure\u003c\/li\u003e\n\u003cli\u003eEliminates coolant leaks associated with faulty thermostat housings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Genuine 03L121111Q thermostat, ensure the engine is cool before beginning work. Drain the coolant system to prevent spills and contamination. Replace any gaskets or seals as needed to maintain a proper seal. Verify the thermostat orientation matches factory specifications to ensure correct operation. After installation, refill the cooling system and bleed air pockets to avoid overheating.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eAs a Genuine part, the 03L121111Q thermostat is manufactured to meet Volkswagen’s original equipment standards. This ensures reliable performance and durability under normal operating conditions. Warranty coverage details should be confirmed with the parts provider or Volkswagen dealer.\u003c\/p\u003e","brand":"Genuine","offers":[{"title":"Default Title","offer_id":51919000142005,"sku":"DFPH-03L121111Q","price":128.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/GU_03L121111Q_Ang.jpg?v=1775003208","url":"https:\/\/www.partcatalog.com\/products\/genuine-03l121111q-engine-coolant-thermostat","provider":"PartCatalog","version":"1.0","type":"link"}