{"product_id":"dayco-71663-radiator-coolant-hose","title":"Dayco 71663 Radiator Coolant Hose - Upper","description":"\u003ch2\u003eOverview of Dayco Curved Radiator Hose 71663\u003c\/h2\u003e\u003cp\u003eThe Dayco Curved Radiator Hose 71663 is designed to provide reliable coolant flow for various BMW models. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance under typical engine operating conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from high-quality EPDM material for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eBlack single inside diameter hose with 1 19\/32 inch diameter on both ends\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 inches for precise fitment\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple BMW models including 320i, 323i, 325i, 328i, 525i, 528i, 530i, M3, and Z3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dayco Curved Radiator Hose 71663 is part of the Curved Radiator Hose product line, which focuses on delivering hoses shaped to fit specific engine layouts and cooling system designs. This hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for maintaining coolant flow in demanding automotive environments. Both ends of the hose have an inside diameter of 1 19\/32 inches, ensuring a secure connection to the radiator and engine fittings. The hose does not include a heat shield or protective sleeve, which is typical for this type of single inside diameter hose. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis radiator coolant hose is compatible with a range of BMW vehicles, including the 320i, 323i, 323is, 325i, 325is, 328i, 328is, 525i, 528i, 530i, M3, and Z3 models. It is designed to replace original equipment hoses that require a curved shape and specific diameter for proper coolant system function.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReplaces worn or cracked radiator hoses causing coolant leaks\u003c\/li\u003e\n\u003cli\u003ePrevents overheating due to coolant flow restrictions\u003c\/li\u003e\n\u003cli\u003eRestores proper coolant circulation in BMW 3 Series and 5 Series models\u003c\/li\u003e\n\u003cli\u003eAddresses hose swelling or softening from heat exposure\u003c\/li\u003e\n\u003cli\u003eEliminates coolant contamination from hose deterioration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dayco Curved Radiator Hose 71663, ensure the engine is cool to avoid burns from hot coolant. Verify that the hose diameter matches the radiator and engine fittings for a secure seal. Use appropriate clamps to prevent leaks and check for any signs of wear on adjoining components. Proper routing is essential to avoid kinks or contact with moving parts.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures this radiator coolant hose to meet industry SAE specifications, ensuring consistent quality and performance. While specific warranty details are not provided, Dayco products typically adhere to strict quality control standards to support reliable operation in BMW cooling systems.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391434752181,"sku":"BCWL-71663","price":30.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_71663_Fro.jpg?v=1774728403","url":"https:\/\/www.partcatalog.com\/products\/dayco-71663-radiator-coolant-hose","provider":"PartCatalog","version":"1.0","type":"link"}