{"product_id":"gates-51579-radiator-coolant-hose-upper","title":"Gates 51579 Radiator Coolant Hose - Upper","description":"\u003ch2\u003eReliable Radiator Coolant Hose for Audi A4 and A4 Quattro\u003c\/h2\u003e\u003cp\u003eThe Gates Molded Coolant Hose 51579 is engineered to provide a precise fit and dependable performance for Audi A4 and A4 Quattro models. Designed with durable materials and molded construction, this radiator coolant hose ensures efficient coolant flow and system integrity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from EPDM, plastic, and steel for durability and heat resistance\u003c\/li\u003e\n\u003cli\u003eEnd 1 inside diameter: 1.25 inches (32 mm)\u003c\/li\u003e\n\u003cli\u003eEnd 2 inside diameter: 1.3 inches (33 mm)\u003c\/li\u003e\n\u003cli\u003eCenterline length of 16.5 inches (419 mm) for exact fitment\u003c\/li\u003e\n\u003cli\u003eIncludes two quick connect fittings: female and male connectors\u003c\/li\u003e\n\u003cli\u003eMolded design for precise shape and secure connections\u003c\/li\u003e\n\u003cli\u003eModular hose compatible with quick connect fittings\u003c\/li\u003e\n\u003cli\u003eContains no internal spring, ensuring smooth coolant flow\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Gates Molded Coolant Hose Product Line\u003c\/h2\u003e\u003cp\u003eThe Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to match specific vehicle coolant system layouts. This reduces installation time and potential leaks by providing a hose that fits the contours of the engine bay precisely. The 51579 part benefits from this design approach, offering a molded shape with integrated quick connectors tailored for Audi A4 and A4 Quattro applications.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis radiator coolant hose is manufactured using a combination of EPDM rubber, plastic, and steel components to withstand high temperatures and resist degradation from coolant chemicals. The hose features two different inside diameters at each end—1.25 inches (32 mm) and 1.3 inches (33 mm)—to match the specific radiator and engine fittings on compatible Audi models. With a centerline length of 16.5 inches (419 mm), the hose ensures proper routing without kinks or stress points. The inclusion of two quick connect fittings, one female and one male, facilitates secure and leak-free connections without the need for clamps or additional hardware. The molded construction guarantees consistent shape and fitment, reducing the risk of coolant leaks and system failures.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement of worn or cracked radiator coolant hoses on Audi A4 and A4 Quattro\u003c\/li\u003e\n\u003cli\u003eResolving coolant leaks caused by hose deterioration or improper fit\u003c\/li\u003e\n\u003cli\u003ePreventing overheating issues due to compromised coolant flow\u003c\/li\u003e\n\u003cli\u003eEliminating hose collapse or deformation under pressure\u003c\/li\u003e\n\u003cli\u003eUpgrading to a molded hose for improved durability and fitment\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 coolant hose to avoid burns. Verify that the quick connect fittings on the hose align correctly with the vehicle’s radiator and engine connectors. The molded shape of the hose should match the original routing path to prevent kinks or stress. Inspect all connection points for proper engagement to avoid leaks. It is recommended to replace coolant and inspect the entire cooling system during installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eGates Molded Coolant Hose 51579 is manufactured to meet or exceed OEM specifications for fit, form, and function. The use of EPDM rubber and steel components ensures resistance to heat, pressure, and coolant chemicals. While specific warranty details are not provided, Gates products typically adhere to industry standards for quality and reliability.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":51995915255989,"sku":"BBSC-51579","price":39.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_51579_Top.jpg?v=1775165151","url":"https:\/\/www.partcatalog.com\/products\/gates-51579-radiator-coolant-hose-upper","provider":"PartCatalog","version":"1.0","type":"link"}