{"product_id":"dayco-87778-hvac-heater-hose","title":"Dayco 87778 HVAC Heater Hose - Heater Inlet","description":"\u003ch2\u003eOverview of Dayco Small I.D. Heater Hose 87778\u003c\/h2\u003e\u003cp\u003eThe Dayco Small I.D. Heater Hose 87778 is designed specifically for Ford Escort and Mercury Tracer models. This branched HVAC heater hose is constructed from durable EPDM material, ensuring reliable performance in your vehicle's heating system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from EPDM for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eBranched hose design with three different inside diameters (19\/32\", 23\/32\", 1\/4\")\u003c\/li\u003e\n\u003cli\u003eBlack color for standard OEM appearance\u003c\/li\u003e\n\u003cli\u003eMeets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications\u003c\/li\u003e\n\u003cli\u003eCompatible with Ford Escort and Mercury Tracer HVAC systems\u003c\/li\u003e\n\u003cli\u003eDoes not include heat shield or protective sleeve\u003c\/li\u003e\n\u003cli\u003eTrunk height dimension of 14 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dayco Small I.D. Heater Hose 87778 is engineered to meet the specific HVAC hose requirements of Ford Escort and Mercury Tracer vehicles. Made from EPDM (ethylene propylene diene monomer), this hose offers excellent resistance to heat, ozone, and automotive fluids, which is critical for maintaining the integrity of the heating system. The branched hose design features three distinct inside diameters—19\/32\", 23\/32\", and 1\/4\"—allowing it to connect multiple points within the heater core assembly efficiently. The hose is black in color, matching OEM standards, and complies with SAE J20R3 Class D-1 and SAE J1684 Type EC specifications, ensuring it meets industry standards for durability and performance.\u003c\/p\u003e\u003ch2\u003eAbout the Small I.D. Heater Hose Product Line\u003c\/h2\u003e\u003cp\u003eThe Small I.D. Heater Hose line by Dayco focuses on providing precise fitment and reliable materials for HVAC systems requiring smaller inside diameter hoses. This product line is tailored to meet the demands of specific vehicle models, such as the Ford Escort and Mercury Tracer, offering branched hose configurations that simplify installation and maintain system integrity without the need for additional heat shields or protective sleeves.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement of worn or cracked heater hoses in Ford Escort and Mercury Tracer HVAC systems\u003c\/li\u003e\n\u003cli\u003eResolving coolant leaks within the heater core hose assembly\u003c\/li\u003e\n\u003cli\u003ePreventing overheating caused by compromised heater hose integrity\u003c\/li\u003e\n\u003cli\u003eMaintaining proper coolant flow for effective cabin heating\u003c\/li\u003e\n\u003cli\u003eAddressing hose failures due to age-related material degradation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the vehicle is cool before beginning installation to avoid burns from hot coolant\u003c\/li\u003e\n\u003cli\u003eVerify hose diameters match the OEM specifications for proper fitment\u003c\/li\u003e\n\u003cli\u003eInspect all hose connections and clamps for wear and replace as necessary\u003c\/li\u003e\n\u003cli\u003eFlush the cooling system if contamination or debris is present before installing the new hose\u003c\/li\u003e\n\u003cli\u003eCheck for leaks after installation by running the engine and monitoring the heater hose assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures the Small I.D. Heater Hose 87778 to meet SAE industry standards, including J20R3 Class D-1 and J1684 Type EC, ensuring consistent quality and durability. While specific warranty details are not provided, Dayco products typically adhere to strict quality control processes to support reliable vehicle operation.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391559762101,"sku":"BCWL-87778","price":71.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_87778_Fro.jpg?v=1774728770","url":"https:\/\/www.partcatalog.com\/products\/dayco-87778-hvac-heater-hose","provider":"PartCatalog","version":"1.0","type":"link"}