{"product_id":"four-seasons-74661-hvac-heater-control-valve","title":"Four Seasons 74661 HVAC Heater Control Valve - Rear","description":"\u003ch2\u003eOverview of Four Seasons Heater Valve 74661\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Valve 74661 is a cable-operated, non-bypass heater valve designed for precise temperature control in select Chevrolet and Pontiac vehicles. Engineered with durable steel construction, this valve ensures reliable operation in HVAC systems for models like the C10 Suburban and Tempest.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCable operated open non-bypass heater valve\u003c\/li\u003e\n\u003cli\u003eConstructed from durable steel for long-lasting performance\u003c\/li\u003e\n\u003cli\u003eIncludes 2 hose connectors with 0.625 inch (15.875 mm) openings\u003c\/li\u003e\n\u003cli\u003eOEM replacement part ensuring direct fit and function\u003c\/li\u003e\n\u003cli\u003eCompatible with Chevrolet and Pontiac models including C10 Suburban, G10, and Tempest\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Four Seasons Heater Valve 74661 is part of the Heater Valve product line, which focuses on providing reliable temperature control components for automotive HVAC systems. The valve operates via a cable mechanism, allowing for smooth and responsive control of coolant flow to the heater core. Its non-bypass style means it fully opens or closes the flow path without diverting coolant, which is essential for maintaining consistent cabin heating performance.\u003c\/p\u003e\u003cp\u003eManufactured from steel, the valve offers durability and resistance to wear under typical engine bay conditions. The two hose connectors each measure 0.625 inches (15.875 mm) in diameter, matching OEM specifications for a direct replacement. This ensures compatibility and ease of installation in vehicles requiring this specific heater valve.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis heater valve is compatible with a range of Chevrolet and Pontiac vehicles, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet C10 Suburban\u003c\/li\u003e\n\u003cli\u003eChevrolet C20 Suburban\u003c\/li\u003e\n\u003cli\u003eChevrolet G10, G20, G30 vans\u003c\/li\u003e\n\u003cli\u003eChevrolet K10 and K20 Suburban\u003c\/li\u003e\n\u003cli\u003ePontiac Tempest\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUsing the Four Seasons Heater Valve 74661 in these models helps maintain proper HVAC temperature control and system efficiency.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Heater Valve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eInconsistent or no heat inside the vehicle cabin\u003c\/li\u003e\n\u003cli\u003eHeater core coolant flow blockage or leakage\u003c\/li\u003e\n\u003cli\u003eFailure of cable-operated heater valve mechanisms\u003c\/li\u003e\n\u003cli\u003eOEM valve corrosion or mechanical wear\u003c\/li\u003e\n\u003cli\u003eHVAC temperature control valve malfunction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the cable linkage is properly connected and adjusted for smooth operation\u003c\/li\u003e\n\u003cli\u003eVerify hose connector sizes match the vehicle’s heater core and coolant lines\u003c\/li\u003e\n\u003cli\u003eInspect surrounding HVAC components for wear or damage during installation\u003c\/li\u003e\n\u003cli\u003eFlush the cooling system if contamination or debris is present before installing the valve\u003c\/li\u003e\n\u003cli\u003eFollow vehicle-specific service manual instructions for removal and installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Valve 74661 is an OEM replacement part manufactured to meet original equipment specifications. Constructed from steel and designed for durability, it undergoes quality control to ensure reliable performance. Warranty coverage details should be confirmed with the product supplier or manufacturer.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":44611025469621,"sku":"BBRN-74661","price":35.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_74661_Fro_9e16dde3-1d37-43d4-8265-e92cc8213b9e.jpg?v=1775070018","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-74661-hvac-heater-control-valve","provider":"PartCatalog","version":"1.0","type":"link"}