{"product_id":"four-seasons-84789-hvac-heater-control-valve","title":"Four Seasons 84789 HVAC Heater Control Valve","description":"\u003ch2\u003eReliable HVAC Heater Control Valve for Precise Temperature Management\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Shut-off Valve 84789 is a durable steel HVAC heater control valve designed to regulate coolant flow in vehicle heating systems. Engineered for manual operation, this valve ensures effective temperature control and system protection in various automotive applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from robust steel for long-lasting performance\u003c\/li\u003e\n\u003cli\u003eManual shut-off valve type for precise coolant flow control\u003c\/li\u003e\n\u003cli\u003eFitting sizes: 3\/4 inch hose to 1\/2 inch male pipe thread\u003c\/li\u003e\n\u003cli\u003eCompact dimensions with overall length of 3.5 inches and depth of 3 inches\u003c\/li\u003e\n\u003cli\u003eCompatible with HVAC temperature control systems requiring heater fittings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Specifications and Features\u003c\/h2\u003e\u003cp\u003eThis HVAC heater control valve features a center B width of 2.5 inches (63.5 mm) and a center width of 2.25 inches (57.15 mm), making it suitable for tight engine compartments. The inlet diameter measures 13\/16 inch (0.8125 inch or 20.638 mm), with an inlet length of 0.625 inch (15.875 mm) and an inlet B length of 0.5 inch (12.7 mm). The outlet length is 0.75 inch (19.05 mm), with outlet C and D lengths of 0.875 inch (22.225 mm) and 0.75 inch (19.05 mm) respectively. Thread size is 1\/2 inch, matching common heater hose and pipe thread connections. The valve’s manual style allows for straightforward operation and maintenance.\u003c\/p\u003e\u003ch2\u003eAbout the Four Seasons Shut-off Valve Product Line\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Shut-off Valve line focuses on providing heavy-duty, manual shut-off valves designed for HVAC systems in automotive applications. These valves are engineered to offer reliable control over coolant flow, helping maintain optimal cabin temperature and protecting heater cores from damage. Part number 84789 is a representative component within this line, built to meet the demands of various vehicle makes and models requiring precise temperature control solutions.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRegulates coolant flow to prevent heater core overheating\u003c\/li\u003e\n\u003cli\u003eStops coolant flow for heater system maintenance or repair\u003c\/li\u003e\n\u003cli\u003ePrevents coolant leaks in HVAC temperature control circuits\u003c\/li\u003e\n\u003cli\u003eEnsures consistent cabin heating performance in cold weather\u003c\/li\u003e\n\u003cli\u003eReplaces worn or faulty heater control valves in compatible vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Four Seasons Shut-off Valve 84789, ensure compatibility with your vehicle’s HVAC system by verifying fitting sizes and thread dimensions. The manual valve requires proper hose connections: a 3\/4 inch hose to a 1\/2 inch male pipe thread. Use appropriate clamps to secure hoses and prevent leaks. Inspect the valve for smooth operation before final installation. This valve is suitable for vehicles that require manual control of heater coolant flow.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eFour Seasons manufactures the Shut-off Valve 84789 with high-quality steel materials to ensure durability and resistance to corrosion. While specific warranty details are not provided, Four Seasons products typically meet industry standards for automotive HVAC components, offering reliable performance and longevity when installed correctly.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":52019500613813,"sku":"BBRN-84789","price":41.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_84789_Fro.jpg?v=1775070634","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-84789-hvac-heater-control-valve","provider":"PartCatalog","version":"1.0","type":"link"}