{"product_id":"dayco-86128-hvac-heater-hose","title":"Dayco 86128 HVAC Heater Hose","description":"\u003ch2\u003eOverview of Dayco Small I.D. Heater Hose 86128\u003c\/h2\u003e\u003cp\u003eThe Dayco Small I.D. Heater Hose 86128 is designed for reliable HVAC system performance in select Buick, Mercury, Nissan, Oldsmobile, and Pontiac vehicles. Engineered with durable EPDM material, this hose ensures consistent heat transfer and resistance to automotive fluids.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from EPDM for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eBlack single inside diameter hose with 23\/32 inch ID on both ends\u003c\/li\u003e\n\u003cli\u003eMeets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications\u003c\/li\u003e\n\u003cli\u003eDoes not include heat shield or protective sleeve\u003c\/li\u003e\n\u003cli\u003eCompatible with Buick 88, 98, LeSabre, Park Avenue, Oldsmobile 88, 98, Pontiac Bonneville, Mercury Villager, and Nissan Quest\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetails on the Small I.D. Heater Hose Product Line\u003c\/h2\u003e\u003cp\u003eThe Dayco Small I.D. Heater Hose line focuses on single inside diameter hoses designed for HVAC applications requiring precise fitment and durability. This product line emphasizes compliance with SAE standards such as J20R3 Class D-1 and J1684 Type EC, ensuring hoses withstand typical heater core system pressures and temperatures without degradation. The 86128 part exemplifies this line’s commitment to quality materials and exact fit for specific vehicle models.\u003c\/p\u003e\u003ch2\u003eTechnical Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dayco 86128 heater hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids, making it suitable for HVAC heater core connections. Both ends of the hose have an inside diameter of 23\/32 inches, providing a consistent seal and fit. This single inside diameter hose does not include additional heat shielding or protective sleeves, which is typical for applications where external heat exposure is minimal. The hose’s trunk height is 10, supporting proper routing within the engine bay.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement of cracked or leaking heater hoses in Buick 88, 98, and LeSabre models\u003c\/li\u003e\n\u003cli\u003eResolving coolant leaks in Pontiac Bonneville and Oldsmobile 98 HVAC systems\u003c\/li\u003e\n\u003cli\u003eRestoring proper heater core flow in Mercury Villager and Nissan Quest vehicles\u003c\/li\u003e\n\u003cli\u003eAddressing hose deterioration due to age or exposure to engine heat\u003c\/li\u003e\n\u003cli\u003eEnsuring compliance with SAE specifications for HVAC hose performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dayco Small I.D. Heater Hose 86128, ensure the hose is routed without kinks or sharp bends to maintain coolant flow. Verify that the 23\/32 inch inside diameter matches the heater core and pipe fittings on your specific vehicle model. Use appropriate clamps to secure the hose ends and check for leaks after installation. It is recommended to inspect adjacent components for wear during replacement to prevent future HVAC system issues.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures the 86128 heater hose to meet SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring durability and performance under typical automotive conditions. While specific warranty details are not provided, Dayco products generally adhere to industry quality controls and are backed by the brand’s commitment to reliable automotive components.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391548358837,"sku":"BCWL-86128","price":19.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_86128_Fro.jpg?v=1774728727","url":"https:\/\/www.partcatalog.com\/products\/dayco-86128-hvac-heater-hose","provider":"PartCatalog","version":"1.0","type":"link"}