{"product_id":"four-seasons-91721-hvac-heater-core","title":"Four Seasons 91721 HVAC Heater Core","description":"\u003ch2\u003eReliable Four Seasons Heater Core for Efficient Cabin Heating\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Core 91721 is designed to restore your vehicle's heating system performance. Engineered with durable copper and brass materials, this heater core ensures effective heat transfer and long-lasting operation for compatible makes and models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCore dimensions: 8-1\/4 inches length, 7-1\/4 inches width, 2 inches thickness\u003c\/li\u003e\n\u003cli\u003eConstructed from copper\/brass for enhanced heat conductivity\u003c\/li\u003e\n\u003cli\u003eCore depth of 2.000 inches, height 8.250 inches, width 7.250 inches\u003c\/li\u003e\n\u003cli\u003eTube sizes: 0.625 inch (15.875 mm) and 0.750 inch (19.050 mm)\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM specifications for reliable fit and function\u003c\/li\u003e\n\u003cli\u003eNon-adjustable pipe positioning for straightforward installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFour Seasons Heater Core Product Line Overview\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Core line focuses on delivering replacement heater cores that meet or exceed original equipment manufacturer standards. This product line emphasizes quality materials such as copper and brass to provide efficient heat transfer and corrosion resistance. The 91721 model is part of this line, offering a precise fit and dependable performance for vehicles requiring a copper\/brass heater core.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Heater Core 91721 features a copper\/brass construction that promotes efficient heat exchange within the HVAC system. Its core dimensions—8.25 inches in height, 7.25 inches in width, and 2 inches in thickness—are designed to match OEM specifications, ensuring compatibility with specific vehicle models. The heater core includes two tubes sized at 0.625 inch and 0.750 inch diameters, facilitating proper coolant flow. This part does not have adjustable pipe positioning, which simplifies installation by maintaining fixed tube locations. The 91721 heater core is engineered to meet or exceed OEM standards, providing a reliable replacement option for vehicles experiencing heating system issues.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores heating performance in vehicles with insufficient cabin heat\u003c\/li\u003e\n\u003cli\u003eReplaces leaking or corroded heater cores causing coolant loss\u003c\/li\u003e\n\u003cli\u003eEliminates unpleasant odors from a damaged heater core\u003c\/li\u003e\n\u003cli\u003ePrevents fogging of interior windows due to heater core leaks\u003c\/li\u003e\n\u003cli\u003eResolves overheating issues related to heater core blockages\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Four Seasons Heater Core 91721, ensure the vehicle's cooling system is properly drained before removal of the old core. Verify the core dimensions and tube sizes match the original part to avoid fitment issues. Since pipe positioning is fixed, align the heater core carefully to the HVAC housing. Inspect all seals and connections for leaks after installation. Professional installation is recommended for accurate fit and to maintain HVAC system integrity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThis Four Seasons Heater Core 91721 is manufactured to meet or exceed OEM quality standards, ensuring durability and reliable operation. The copper\/brass construction offers corrosion resistance and efficient heat transfer. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":52118514663605,"sku":"BBRN-91721","price":163.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_91721_Ang.jpg?v=1775161891","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-91721-hvac-heater-core","provider":"PartCatalog","version":"1.0","type":"link"}