{"product_id":"continental-63641-hvac-heater-hose","title":"Continental 63641 HVAC Heater Hose","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eContinental 63641 is a molded HVAC heater hose built for coolant transfer between the heater core, bypass circuits, radiator routing, and related engine components. It is a fitment-based replacement for a wide range of vehicles, including Toyota Land Cruiser, Lexus LX570, Toyota Prius, and Honda Pilot applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMolded hose construction for application-specific routing\u003c\/li\u003e\n\u003cli\u003eBuilt to transfer glycol-based coolant through heater and bypass circuits\u003c\/li\u003e\n\u003cli\u003eMeets SAE 20R3EC Class D1 and Class D2 specifications\u003c\/li\u003e\n\u003cli\u003eResistant to electrochemical degradation for added hose durability\u003c\/li\u003e\n\u003cli\u003e0.625 in. inside diameter on both ends\u003c\/li\u003e\n\u003cli\u003e5.000 in. hose length\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eContinental 63641 is an HVAC heater hose intended for coolant flow in heating and engine cooling systems. The molded shape helps match the original routing on many vehicles, including Toyota Land Cruiser, Lexus LX570, and Honda Pilot fitments, while the hose material is specified to resist electrochemical degradation. Part number 63641 is also listed across multiple interchange references for the same application, including Gates 21742 and Four Seasons 20338.\u003c\/p\u003e\u003cp\u003eThe Molded product line focuses on formed hose routing for direct replacement applications where a shaped hose is needed rather than a universal straight hose. That makes Continental 63641 a practical choice when the original hose follows a specific path between heater, valve, pipe, or engine connections.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoolant leaks from a deteriorated heater hose\u003c\/li\u003e\n\u003cli\u003eRestricted heater circuit flow caused by hose collapse or cracking\u003c\/li\u003e\n\u003cli\u003eIncorrect hose routing after prior repairs\u003c\/li\u003e\n\u003cli\u003eElectrochemical hose degradation in the cooling system\u003c\/li\u003e\n\u003cli\u003eFitment issues on molded heater hose applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the vehicle’s hose routing, connection points, and inside diameter before installation. This part fits many molded and cut-to-fit heater hose applications, so confirm the listed position and notes for your exact vehicle. On some applications, the hose is used in heater valve, pipe, thermostat, or auxiliary heater routing.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eContinental specifies SAE 20R3EC Class D1 and D2 compliance for this hose and identifies resistance to electrochemical degradation as a key material characteristic. Part number 63641 is engineered for coolant transfer in HVAC and engine cooling circuits across a broad range of fitments.\u003c\/p\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":53267537068213,"sku":"HSKV-63641","price":18.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/6N_63641_Fro.jpg?v=1789450880","url":"https:\/\/www.partcatalog.com\/products\/continental-63641-hvac-heater-hose","provider":"PartCatalog","version":"1.0","type":"link"}