{"product_id":"dayco-86841-hvac-heater-hose","title":"Dayco 86841 HVAC Heater Hose - Throttle Body To Thermostat","description":"\u003ch2\u003eOverview of Dayco Small I.D. Heater Hose 86841\u003c\/h2\u003e\u003cp\u003eThe Dayco Small I.D. Heater Hose 86841 is designed for reliable HVAC system performance in Toyota 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 high-quality EPDM for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eBlack single inside diameter (I.D.) hose with 5\/16 inch I.D. 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\u003eOutside diameter of 9\/16 inch on both ends for secure fitment\u003c\/li\u003e\n\u003cli\u003eCompatible with Toyota 4Runner, Tacoma, and Tundra models\u003c\/li\u003e\n\u003cli\u003eTrunk height of 5 1\/2 inches for proper routing and installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Small I.D. Heater Hose Product Line\u003c\/h2\u003e\u003cp\u003eThe Dayco Small I.D. Heater Hose line focuses on providing precise fitment and durability for HVAC systems requiring smaller diameter hoses. This product line is engineered to meet strict SAE standards, ensuring compatibility and performance in heating applications. The 86841 hose is part of this line, offering a single inside diameter design optimized for Toyota trucks and SUVs.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dayco 86841 heater hose is a single inside diameter hose constructed from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. Both ends of the hose have a 5\/16 inch inside diameter and a 9\/16 inch outside diameter, providing a consistent and secure connection within the HVAC system. This hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC specifications, which define performance requirements for heater hoses in automotive applications. The black color and 5 1\/2 inch trunk height make it suitable for routing in Toyota 4Runner, Tacoma, and Tundra models, ensuring proper fit and function.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement of worn or cracked heater hoses in Toyota 4Runner, Tacoma, and Tundra HVAC systems\u003c\/li\u003e\n\u003cli\u003eResolving coolant leaks that affect cabin heating performance\u003c\/li\u003e\n\u003cli\u003ePreventing hose collapse or blockage that restricts heater core flow\u003c\/li\u003e\n\u003cli\u003eMaintaining proper heat transfer within the vehicle’s heating system\u003c\/li\u003e\n\u003cli\u003eEnsuring compliance with OEM specifications for HVAC hose replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify hose dimensions and fitment with your specific Toyota model before installation\u003c\/li\u003e\n\u003cli\u003eEnsure all clamps and connections are secure to prevent leaks\u003c\/li\u003e\n\u003cli\u003eInspect surrounding components for wear or damage during replacement\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damaging the hose or fittings\u003c\/li\u003e\n\u003cli\u003eFlush the cooling system if necessary to remove debris before installing the new hose\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures the Small I.D. Heater Hose 86841 to meet stringent SAE standards, ensuring durability and reliable performance in automotive HVAC systems. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by the brand’s commitment to automotive replacement parts standards.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391550062773,"sku":"BCWL-86841","price":11.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_86841_Fro.jpg?v=1774728735","url":"https:\/\/www.partcatalog.com\/products\/dayco-86841-hvac-heater-hose","provider":"PartCatalog","version":"1.0","type":"link"}