{"product_id":"dayco-71521-radiator-coolant-hose-lower","title":"Dayco 71521 Radiator Coolant Hose - Lower","description":"\u003ch2\u003eOverview of Dayco Curved Radiator Hose 71521\u003c\/h2\u003e\u003cp\u003eThe Dayco Curved Radiator Hose 71521 is designed to provide reliable coolant flow for select Buick, Chevrolet, and Oldsmobile vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and long-lasting performance in radiator cooling systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from high-quality EPDM rubber for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eDual inside diameters: 1 1\/2 inch and 1 3\/4 inch ends for precise fitment\u003c\/li\u003e\n\u003cli\u003eBlack color for standard OEM appearance\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 20 inches suitable for specific radiator configurations\u003c\/li\u003e\n\u003cli\u003eDesigned without heat shield or protective sleeve\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dayco Curved Radiator Hose 71521 is a dual inside diameter hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This hose features a 1 1\/2 inch inside diameter on one end and a 1 3\/4 inch inside diameter on the other, allowing it to connect different radiator components securely. The black hose is 20 inches in trunk height, making it compatible with certain radiator layouts in Buick Caprice, Chevrolet Custom Cruiser, and Oldsmobile Roadmaster models. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for coolant hoses.\u003c\/p\u003e\u003ch2\u003eAbout the Curved Radiator Hose Product Line\u003c\/h2\u003e\u003cp\u003eThe Curved Radiator Hose line by Dayco focuses on providing hoses with specific bends and dual inside diameters to accommodate unique radiator and engine configurations. This product line is engineered to maintain coolant flow efficiency while fitting tightly within the engine bay, reducing the risk of leaks or hose failure. The 71521 part is a representative example, designed for select GM vehicles requiring a curved hose with dual diameters.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or cracked radiator coolant hoses in Buick Caprice, Chevrolet Custom Cruiser, and Oldsmobile Roadmaster\u003c\/li\u003e\n\u003cli\u003eAddresses coolant leaks caused by hose degradation or improper fit\u003c\/li\u003e\n\u003cli\u003ePrevents overheating issues related to compromised coolant flow\u003c\/li\u003e\n\u003cli\u003eRestores proper coolant system pressure and circulation\u003c\/li\u003e\n\u003cli\u003eEliminates coolant contamination from hose material breakdown\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the engine is cool before removing the old radiator hose to avoid burns. Verify the hose ends match the radiator and engine fittings by checking the inside diameters of 1 1\/2 inch and 1 3\/4 inch. Use appropriate clamps to secure the hose and check for leaks after installation. Avoid twisting or stretching the hose during installation to maintain its integrity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDayco manufactures the Curved Radiator Hose 71521 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring durability and performance under typical operating conditions. While no specific warranty information is provided, Dayco products are generally subject to quality control processes to maintain consistent reliability.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":51995874984117,"sku":"BCWL-71521","price":34.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_71521_Fro.jpg?v=1775164157","url":"https:\/\/www.partcatalog.com\/products\/dayco-71521-radiator-coolant-hose-lower","provider":"PartCatalog","version":"1.0","type":"link"}