{"product_id":"four-seasons-74863-hvac-heater-control-valve","title":"Four Seasons 74863 HVAC Heater Control Valve","description":"\u003ch2\u003eOverview of Four Seasons Heater Valve 74863\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Valve 74863 is designed to regulate coolant flow in the heating system of select Chrysler, Dodge, and Plymouth vehicles. This vacuum-operated bypass heater valve ensures precise temperature control for models like the Daytona, Lancer, LeBaron, Shadow, Spirit, and Sundance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVacuum-operated heater control valve with bypass function\u003c\/li\u003e\n\u003cli\u003eIncludes 4 hose connectors for secure installation\u003c\/li\u003e\n\u003cli\u003ePlastic construction for durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eO.E. replacement part ensuring proper fit and function\u003c\/li\u003e\n\u003cli\u003eStandard 0.625 inch (15.875 mm) hose openings for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Valve 74863 belongs to the Heater Valve product line, which focuses on temperature control components within vehicle HVAC systems. This particular heater valve uses vacuum operation to close the bypass, allowing controlled coolant flow through the heater core. Its plastic material offers resistance to corrosion and wear, contributing to long service life. The valve features four hose connectors, each with a 0.625 inch (15.875 mm) opening, matching original equipment specifications for a direct replacement. This ensures compatibility with the heating systems of Chrysler, Dodge, and Plymouth vehicles including the Daytona, Lancer, LeBaron, Shadow, Spirit, and Sundance models.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRegulates heater core coolant flow to maintain cabin temperature\u003c\/li\u003e\n\u003cli\u003ePrevents heater core bypass to ensure effective heating\u003c\/li\u003e\n\u003cli\u003eResolves issues with inconsistent or no heat output\u003c\/li\u003e\n\u003cli\u003eReplaces faulty or leaking heater control valves\u003c\/li\u003e\n\u003cli\u003eRestores proper vacuum operation in HVAC temperature control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify vacuum lines and hose connections match the 0.625 inch openings\u003c\/li\u003e\n\u003cli\u003eEnsure all four hose connectors are securely attached to prevent leaks\u003c\/li\u003e\n\u003cli\u003eCheck vacuum source and operation before installation\u003c\/li\u003e\n\u003cli\u003eFollow vehicle-specific service manual for removal and installation procedures\u003c\/li\u003e\n\u003cli\u003eInspect surrounding HVAC components for wear or damage during replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Valve 74863 is an O.E. replacement part manufactured to meet original equipment standards. Its plastic construction and vacuum operation are tested for durability and reliable performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Always consult product documentation or supplier information for exact warranty terms.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":44611178299573,"sku":"BBRN-74863","price":30.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_74863_Fro.jpg?v=1775070034","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-74863-hvac-heater-control-valve","provider":"PartCatalog","version":"1.0","type":"link"}