{"product_id":"uro-078121121j-engine-coolant-thermostat-housing","title":"URO 078121121J Engine Coolant Thermostat Housing","description":"\u003ch2\u003eReliable Engine Coolant Thermostat Housing for Audi and Volkswagen\u003c\/h2\u003e\u003cp\u003eThe URO 078121121J engine coolant thermostat housing is designed to provide a durable and precise fit for select Audi and Volkswagen models. Crafted from die cast aluminum, this silver thermostat housing ensures efficient heat dissipation and long-lasting performance in your vehicle's cooling system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from die cast aluminum for strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eSilver finish complements engine bay aesthetics\u003c\/li\u003e\n\u003cli\u003eOutlet port diameter: 31.9 mm for accurate coolant flow\u003c\/li\u003e\n\u003cli\u003eInlet port diameter: 66.7 mm to match OEM specifications\u003c\/li\u003e\n\u003cli\u003eHeight of 30.6 mm and flange thickness of 10.8 mm for proper fitment\u003c\/li\u003e\n\u003cli\u003eBolt hole center to center distance of 81.79 mm ensures secure mounting\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple Audi and Volkswagen models including A4, A6, Passat, and S4\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis URO engine coolant thermostat housing (part number 078121121J) is engineered to meet the exact specifications required by Audi and Volkswagen vehicles such as the 90, 90 Quattro, A4, A4 Quattro, A6, A6 Quattro, Cabriolet, Passat, and S4. The die cast aluminum construction offers enhanced durability and resistance to heat and corrosion compared to plastic alternatives. The precise inlet and outlet port diameters (66.7 mm and 31.9 mm respectively) ensure optimal coolant flow, maintaining engine temperature regulation. The housing's dimensions, including a height of 30.6 mm and flange thickness of 10.8 mm, align with OEM standards for a secure and leak-free installation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for cracked or leaking thermostat housings\u003c\/li\u003e\n\u003cli\u003eRestores proper coolant flow and engine temperature control\u003c\/li\u003e\n\u003cli\u003ePrevents overheating caused by faulty housing seals or warping\u003c\/li\u003e\n\u003cli\u003eEliminates coolant leaks that can lead to engine damage\u003c\/li\u003e\n\u003cli\u003eMaintains engine efficiency in Audi A4, A6, Passat, and S4 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the URO 078121121J thermostat housing, ensure the mating surfaces are clean and free of old gasket material, as this part does not include a gasket or seal. Use the correct torque specifications for the bolt hole center spacing of 81.79 mm to avoid warping the housing. Verify compatibility with your specific Audi or Volkswagen model before installation to ensure proper fitment.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eURO parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. While no specific warranty information is provided, URO products are known for consistent quality in replacement automotive components. Using the 078121121J thermostat housing helps maintain the integrity of your vehicle's cooling system with a precision-engineered replacement part.\u003c\/p\u003e","brand":"URO","offers":[{"title":"Default Title","offer_id":52056227676341,"sku":"DDWC-078121121J","price":133.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/UR_078121121J_Fro.jpg?v=1775134113","url":"https:\/\/www.partcatalog.com\/products\/uro-078121121j-engine-coolant-thermostat-housing","provider":"PartCatalog","version":"1.0","type":"link"}