{"product_id":"dayco-87964-hvac-heater-hose","title":"Dayco 87964 HVAC Heater Hose - Pipe To Thermostat","description":"\u003ch2\u003eDayco 87964 Small I.D. Heater Hose\u003c\/h2\u003e\u003cp\u003eDayco 87964 is a Small I.D. Heater Hose built for Subaru cooling system service where a 5\/8 in. heater hose connection is required. This EPDM hose is a direct-fit HVAC heater hose option for select Subaru Legacy, Outback, Forester, and Impreza applications, including pipe-to-thermostat routing.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEPDM construction for heater hose service\u003c\/li\u003e\n\u003cli\u003eBlack finish for a clean OE-style appearance\u003c\/li\u003e\n\u003cli\u003e5\/8 in. inside diameter at both ends\u003c\/li\u003e\n\u003cli\u003eSingle I.D. hose design\u003c\/li\u003e\n\u003cli\u003eBuilt to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications\u003c\/li\u003e\n\u003cli\u003eDayco Small I.D. Heater Hose line for Subaru cooling system replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThis Dayco Small I.D. Heater Hose line focuses on OE-style replacement for Subaru heater circuit routing where compact hose sizing is required. Part number 87964 uses EPDM material and a single I.D. hose design with 5\/8 in. inside diameter at each end and 31\/32 in. outside diameter at each end. It is listed for Subaru Legacy, Subaru Outback, Subaru Forester, and Subaru Impreza applications, including pipe-to-thermostat positions on select model years. This part number, 87964, is a practical choice when replacing a worn heater hose in the Subaru Legacy or Subaru Outback cooling system.\u003c\/p\u003e\u003cp\u003eThis part cross-references no listed interchange numbers in the provided data.\u003c\/p\u003e\u003ch2\u003eCommon Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a cracked or hardened heater hose\u003c\/li\u003e\n\u003cli\u003eRestoring coolant flow between the pipe and thermostat\u003c\/li\u003e\n\u003cli\u003eAddressing coolant seepage at a 5\/8 in. hose connection\u003c\/li\u003e\n\u003cli\u003eRepairing Subaru heater hose routing on Legacy, Outback, Forester, or Impreza models\u003c\/li\u003e\n\u003cli\u003eServicing an aging HVAC heater hose in the engine bay\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify hose routing, end diameters, and position before installation. Confirm the application matches the listed Subaru Legacy, Outback, Forester, or Impreza fitment for your year and engine layout. Inspect adjoining pipes, clamps, and thermostat connections for wear before installing Dayco 87964. Because this hose is specified as a small I.D. heater hose, match the 5\/8 in. ends to the vehicle’s existing connection points.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDayco lists this hose to SAE J20R3 Class D-1 and SAE J1684 Type EC standards, supporting consistent heater hose construction for automotive cooling system service.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391568281781,"sku":"BCWL-87964","price":22.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_87964_Fro.jpg?v=1774728799","url":"https:\/\/www.partcatalog.com\/products\/dayco-87964-hvac-heater-hose","provider":"PartCatalog","version":"1.0","type":"link"}