{"product_id":"four-seasons-86321-engine-coolant-thermostat-water-outlet-assembly","title":"Four Seasons 86321 Engine Coolant Thermostat \/ Water Outlet Assembly","description":"\u003ch2\u003eOverview of Four Seasons Water Outlet Assembly 86321\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Water Outlet Assembly 86321 is designed for reliable engine coolant management in select Lexus and Toyota vehicles. This assembly includes a thermostat and gasket, ensuring proper coolant flow and temperature regulation for models like the Toyota Highlander and Lexus RX450h.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes thermostat and gasket for a complete coolant outlet solution\u003c\/li\u003e\n\u003cli\u003eConstructed from durable plastic material for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eInlet diameter of 1.365 inches for precise fitment\u003c\/li\u003e\n\u003cli\u003eCompact overall height of 2.918 inches and flange width of 0.4 inches\u003c\/li\u003e\n\u003cli\u003eCompatible with Lexus Highlander, RX450h, RX450hL, and Toyota TX550h+ models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Line Details: Four Seasons Water Outlet\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Water Outlet product line focuses on engine coolant components that integrate thermostat functionality with the outlet assembly. This combination helps maintain optimal engine temperature by regulating coolant flow through a single, easy-to-install unit. The 86321 part number represents a specific configuration within this line, tailored for select Lexus and Toyota hybrid models.\u003c\/p\u003e\u003ch2\u003eTechnical Description and Features\u003c\/h2\u003e\u003cp\u003eThis engine coolant thermostat and water outlet assembly is made from high-quality plastic, providing resistance to corrosion and heat exposure common in engine compartments. The included thermostat ensures accurate temperature control, while the gasket guarantees a secure, leak-free seal. With an inlet diameter of 1.365 inches and a mounting flange width of 0.4 inches, this assembly fits precisely in the cooling system of compatible vehicles. Its overall height of 2.918 inches allows for compact installation without compromising performance.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for faulty or leaking water outlet assemblies in Lexus RX450h and Toyota Highlander\u003c\/li\u003e\n\u003cli\u003eSolves overheating issues caused by malfunctioning thermostats\u003c\/li\u003e\n\u003cli\u003ePrevents coolant leaks that can lead to engine damage\u003c\/li\u003e\n\u003cli\u003eRestores proper coolant flow in hybrid models like RX450hL and TX550h+\u003c\/li\u003e\n\u003cli\u003eAddresses thermostat failure symptoms such as engine temperature fluctuations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Four Seasons Water Outlet Assembly 86321, ensure the gasket is properly seated to prevent leaks. Verify the inlet diameter and flange width match the vehicle’s specifications. It is recommended to drain the coolant system before removal and refill with fresh coolant after installation. Proper torque on mounting bolts will help maintain a secure fit and prevent damage to the plastic housing.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eFour Seasons parts are manufactured to meet or exceed OEM standards for fit, form, and function. The Water Outlet Assembly 86321 includes a thermostat and gasket to provide a complete solution for engine coolant regulation. While specific warranty details are not provided here, Four Seasons typically offers coverage against defects in material and workmanship to ensure reliability in service.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":52118511419573,"sku":"BBRN-86321","price":84.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_86321_Fro.jpg?v=1775161860","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-86321-engine-coolant-thermostat-water-outlet-assembly","provider":"PartCatalog","version":"1.0","type":"link"}