{"product_id":"dayco-88502-hvac-heater-hose","title":"Dayco 88502 HVAC Heater Hose - Heater Hose or Heater To Pipe","description":"\u003ch2\u003eOverview of Dayco Small I.D. Heater Hose 88502\u003c\/h2\u003e\u003cp\u003eThe Dayco Small I.D. Heater Hose 88502 is designed specifically for Volkswagen Golf and Jetta models. Engineered to meet SAE J20R3 Class D-1 and SAE J1684 Type EC specifications, this dual inside diameter hose ensures reliable HVAC system performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable EPDM material for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eDual inside diameters: 3\/4 inch and 7\/8 inch for versatile fitment\u003c\/li\u003e\n\u003cli\u003eBlack color for standard OEM appearance\u003c\/li\u003e\n\u003cli\u003eOutside diameters: 1 1\/16 inch and 1 3\/8 inch for secure connections\u003c\/li\u003e\n\u003cli\u003eComplies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards\u003c\/li\u003e\n\u003cli\u003eTrunk height of 11 inches suitable for compact routing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetails on the Small I.D. Heater Hose Product Line\u003c\/h2\u003e\u003cp\u003eThe Small I.D. Heater Hose line by Dayco focuses on providing hoses with dual inside diameters to accommodate specific HVAC system requirements. This product line is engineered to deliver precise fit and durability for heating applications, making it suitable for Volkswagen vehicles such as the Golf and Jetta. The 88502 part number represents a hose designed to maintain system integrity without additional heat shields or protective sleeves.\u003c\/p\u003e\u003ch2\u003eProduct Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dayco 88502 heater hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids. This hose features two different inside diameters—3\/4 inch on one end and 7\/8 inch on the other—allowing it to connect components with varying sizes within the HVAC system. The outside diameters of 1 1\/16 inch and 1 3\/8 inch ensure a secure fit with clamps and fittings. Its black color matches OEM standards, and the hose does not include a heat shield or protective sleeve, which is typical for this product line. The hose length and trunk height of 11 inches provide adequate routing space in Volkswagen Golf and Jetta models.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement of worn or cracked heater hoses in Volkswagen Golf and Jetta HVAC systems\u003c\/li\u003e\n\u003cli\u003eResolving coolant leaks that affect cabin heating performance\u003c\/li\u003e\n\u003cli\u003eAddressing hose swelling or softening due to heat exposure\u003c\/li\u003e\n\u003cli\u003eEnsuring proper coolant flow between heater core and engine\u003c\/li\u003e\n\u003cli\u003eMaintaining system pressure and preventing overheating issues\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify hose diameters match the vehicle’s HVAC fittings before installation\u003c\/li\u003e\n\u003cli\u003eInspect clamps and fittings for wear and replace if necessary\u003c\/li\u003e\n\u003cli\u003eEnsure proper routing to avoid kinks or contact with moving parts\u003c\/li\u003e\n\u003cli\u003eUse appropriate coolant compatible with EPDM hoses\u003c\/li\u003e\n\u003cli\u003eCheck for leaks after installation and during initial operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures the Small I.D. Heater Hose 88502 to meet strict SAE standards, ensuring durability and performance in Volkswagen Golf and Jetta vehicles. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support reliable HVAC system operation.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391576211637,"sku":"BCWL-88502","price":32.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_88502_Fro.jpg?v=1774728829","url":"https:\/\/www.partcatalog.com\/products\/dayco-88502-hvac-heater-hose","provider":"PartCatalog","version":"1.0","type":"link"}