{"product_id":"four-seasons-74771-hvac-heater-control-valve","title":"Four Seasons 74771 HVAC Heater Control Valve - Front","description":"\u003ch2\u003eOverview of Four Seasons Heater Valve 74771 for Ford Aerostar\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Valve 74771 is designed specifically for Ford Aerostar models, providing reliable HVAC temperature control. This vacuum-operated, non-bypass heater valve ensures efficient heating system performance by regulating coolant flow.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVacuum closes non-bypass heater valve design\u003c\/li\u003e\n\u003cli\u003eConstructed from durable steel material\u003c\/li\u003e\n\u003cli\u003eIncludes 2 hose connectors for secure installation\u003c\/li\u003e\n\u003cli\u003eOpening size: 0.625 inches (15.875 mm)\u003c\/li\u003e\n\u003cli\u003eO.E. replacement part for direct fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFour Seasons Heater Valve Product Line Details\u003c\/h2\u003e\u003cp\u003eThe Heater Valve product line from Four Seasons focuses on precise temperature control components for vehicle HVAC systems. This line includes valves engineered to meet original equipment specifications, ensuring compatibility and reliable operation. The 74771 heater valve exemplifies this approach with its vacuum operation and non-bypass style, tailored for specific vehicle applications like the Ford Aerostar.\u003c\/p\u003e\u003ch2\u003eTechnical Description and Features\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Valve 74771 features a vacuum-operated mechanism that closes the valve to regulate coolant flow through the heater core. Its non-bypass style means all coolant passes through the heater core when the valve is open, providing consistent cabin heating. Made from steel, this valve offers durability and resistance to wear. The two hose connectors with 0.625 inch (15.875 mm) openings ensure a secure and leak-free connection to the vehicle’s HVAC system. As an O.E. replacement, it fits directly into the Ford Aerostar without modification.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper heater core coolant flow in Ford Aerostar vehicles\u003c\/li\u003e\n\u003cli\u003eResolves issues with inconsistent or no cabin heat\u003c\/li\u003e\n\u003cli\u003eEliminates vacuum leaks affecting heater valve operation\u003c\/li\u003e\n\u003cli\u003ePrevents coolant bypass that reduces heating efficiency\u003c\/li\u003e\n\u003cli\u003eReplaces worn or corroded heater valves causing HVAC malfunctions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vacuum lines are intact and properly connected for valve operation\u003c\/li\u003e\n\u003cli\u003eVerify hose connector sizes match existing HVAC hoses (0.625 inch openings)\u003c\/li\u003e\n\u003cli\u003eInspect surrounding components for wear or damage during replacement\u003c\/li\u003e\n\u003cli\u003eFollow vehicle-specific service manual instructions for heater valve replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eFour Seasons manufactures the Heater Valve 74771 to meet or exceed original equipment standards, ensuring reliable performance in Ford Aerostar vehicles. This part is an exact O.E. replacement, backed by Four Seasons’ quality control processes. Warranty coverage details should be confirmed with the product documentation or supplier.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":44611060596917,"sku":"BBRN-74771","price":82.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_74771_Fro.jpg?v=1775070022","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-74771-hvac-heater-control-valve","provider":"PartCatalog","version":"1.0","type":"link"}