{"product_id":"dayco-87777-hvac-heater-hose","title":"Dayco 87777 HVAC Heater Hose - Heater Outlet","description":"\u003ch2\u003eDayco 87777 Small I.D. Heater Hose\u003c\/h2\u003e\u003cp\u003eDayco 87777 is a branched HVAC heater hose built for small-diameter coolant routing in the heater outlet circuit. Made from EPDM with a black finish and a protective sleeve, it is specified for direct-fit service on select Ford Escort and Mercury Tracer applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEPDM construction for heater hose service\u003c\/li\u003e\n\u003cli\u003eBranched hose design for multiple connection points\u003c\/li\u003e\n\u003cli\u003eBlack finish for OE-style appearance\u003c\/li\u003e\n\u003cli\u003eProtective sleeve included for added abrasion resistance\u003c\/li\u003e\n\u003cli\u003eBuilt to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications\u003c\/li\u003e\n\u003cli\u003eEnd inside diameters: 19\/32 in., 7\/8 in., and 1\/4 in.\u003c\/li\u003e\n\u003cli\u003eTrunk height: 19 in.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThis Dayco Small I.D. Heater Hose line is focused on replacement routing for compact heater circuits where molded branch geometry matters. Part number 87777 uses EPDM rubber for coolant and heat exposure, and its branched layout supports the heater outlet configuration found on 1998-2002 Ford Escort and 1999 Mercury Tracer models. If you are searching for a Dayco 87777 heater hose for a Ford Escort heater outlet repair, this part matches the listed application and dimensions.\u003c\/p\u003e\u003cp\u003eThis part cross-references ACDelco 24459L and Gates 22399 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Problems It Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCracked or split heater hose at the outlet connection\u003c\/li\u003e\n\u003cli\u003eCoolant seepage from aged EPDM hose material\u003c\/li\u003e\n\u003cli\u003eRestricted heater flow caused by deteriorated internal hose walls\u003c\/li\u003e\n\u003cli\u003eIncorrect routing from a damaged branched hose assembly\u003c\/li\u003e\n\u003cli\u003eHeat-related hose wear in the engine bay\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the heater outlet routing and all connection diameters before installation. Match the branched layout and protective sleeve orientation to the original hose path, and inspect adjoining clamps, fittings, and coolant passages for wear or corrosion before reassembly. After installation, refill and bleed the cooling system according to the vehicle service procedure.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDayco specifies this hose to SAE J20R3 Class D-1 and SAE J1684 Type EC standards, supporting consistent material and dimensional requirements for heater hose service.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 1998-2002 Ford Escort, Heater Outlet\u003c\/li\u003e\n\u003cli\u003eFits 1999 Mercury Tracer, Heater Outlet\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391559729333,"sku":"BCWL-87777","price":88.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_87777_Fro.jpg?v=1774728770","url":"https:\/\/www.partcatalog.com\/products\/dayco-87777-hvac-heater-hose","provider":"PartCatalog","version":"1.0","type":"link"}