{"product_id":"dayco-71221-engine-coolant-bypass-hose","title":"Dayco 71221 Engine Coolant Bypass Hose","description":"\u003ch2\u003eOverview of Dayco Curved Radiator Hose 71221\u003c\/h2\u003e\u003cp\u003eThe Dayco Curved Radiator Hose 71221 is engineered for reliable engine coolant bypass in select Audi and Volkswagen models. Designed with durable EPDM material, this black single inside diameter hose ensures consistent performance under typical operating conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from high-quality EPDM for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eBlack color with a curved design for precise fitment\u003c\/li\u003e\n\u003cli\u003eEnd 1 and End 2 inside diameters both measure 31\/32 inches\u003c\/li\u003e\n\u003cli\u003eMeets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications\u003c\/li\u003e\n\u003cli\u003eTrunk height of 12 1\/2 inches for proper routing\u003c\/li\u003e\n\u003cli\u003eSingle inside diameter hose type for engine coolant bypass\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dayco Curved Radiator Hose line is designed to provide dependable coolant flow and maintain engine temperature control in various vehicle applications. The 71221 part number is a single inside diameter hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This hose features a consistent 31\/32 inch inside diameter on both ends, ensuring a secure connection within the cooling system. Its black color and curved shape facilitate installation and routing in tight engine compartments.\u003c\/p\u003e\u003cp\u003eCompliant with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, this hose meets industry requirements for coolant hoses, providing assurance of material and performance quality. The trunk height of 12 1\/2 inches supports proper fitment in the cooling system layout of compatible vehicles.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis Dayco Curved Radiator Hose 71221 is compatible with a range of Audi and Volkswagen models, including the Audi 4000 and Cabriolet, as well as Volkswagen Fox, Golf, Jetta, Quantum, and Rabbit Convertible. It is specifically designed for engine coolant bypass applications in these vehicles, ensuring proper coolant circulation and temperature regulation.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Hose\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents coolant leaks caused by cracked or worn hoses\u003c\/li\u003e\n\u003cli\u003eMaintains proper engine temperature by ensuring coolant flow\u003c\/li\u003e\n\u003cli\u003eReplaces deteriorated or swollen hoses that can cause overheating\u003c\/li\u003e\n\u003cli\u003eEliminates coolant bypass hose failures that lead to engine damage\u003c\/li\u003e\n\u003cli\u003eRestores cooling system integrity in Audi and Volkswagen models listed\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 vehicle’s specifications 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\u003eReplace coolant and bleed the system as recommended after hose installation\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damaging the hose or fittings during installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures the Curved Radiator Hose 71221 to meet stringent SAE standards, ensuring durability and performance in engine coolant systems. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Audi and Volkswagen vehicles.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43389886136501,"sku":"BCWL-71221","price":24.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_71221_Fro_3aea564e-ad27-4f74-ad35-26532e9c747f.jpg?v=1774728346","url":"https:\/\/www.partcatalog.com\/products\/dayco-71221-engine-coolant-bypass-hose","provider":"PartCatalog","version":"1.0","type":"link"}