{"product_id":"gates-51501-radiator-coolant-hose","title":"Gates 51501 Radiator Coolant Hose - Lower or Lower Right","description":"\u003ch2\u003eGates Molded Coolant Hose for Audi Cooling Repair\u003c\/h2\u003e\u003cp\u003eThe Gates 51501 molded coolant hose is built for specific Audi cooling system applications that require an OE-style formed hose with integrated connection points. It is a direct-fit radiator coolant hose for select Audi A4 Quattro, A5, A5 Quattro, A4, Q5, S4, and S5 models with lower or lower right routing.\u003c\/p\u003e\u003cp\u003eGates Molded Coolant Hose products are application-specific assemblies that mirror OEM-style layouts, including molded shapes and integrated components where required. This helps maintain proper coolant flow path and connection integrity in vehicles that use a modular hose design.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaterial: EPDM, plastic, and steel construction\u003c\/li\u003e\n\u003cli\u003eMolded hose design for exact routing\u003c\/li\u003e\n\u003cli\u003e1.5 in. \/ 38 mm inside diameter at both ends\u003c\/li\u003e\n\u003cli\u003e19 in. \/ 483 mm centerline length\u003c\/li\u003e\n\u003cli\u003eIncludes one female quick connect fitting and a bleeder valve\u003c\/li\u003e\n\u003cli\u003eNo spring included\u003c\/li\u003e\n\u003cli\u003eModular hose design for OE-style cooling system service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Overview\u003c\/h2\u003e\u003cp\u003eThis Gates 51501 radiator coolant hose is engineered for lower cooling system routing on select Audi platforms, including 2008-2011 Audi A5, 2008-2011 Audi A5 Quattro, 2009-2011 Audi A4 Quattro, 2009-2012 Audi Q5, 2010-2015 Audi A4, 2010-2015 Audi S5, 2016 Audi S4, 2016 Audi S5, and 2017 Audi S5. It also cross-references Genuine 8K0121055B for the same application. If you are replacing a worn Audi S4 lower right coolant hose or a lower radiator coolant hose on an Audi S5, part number 51501 provides the correct molded layout and integrated connection style.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Hose Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoolant leaks from cracked or aged hose material\u003c\/li\u003e\n\u003cli\u003eImproper fit from a straight universal hose in a formed routing location\u003c\/li\u003e\n\u003cli\u003eConnection issues at the quick-connect interface\u003c\/li\u003e\n\u003cli\u003eAir trapped in the cooling circuit where a bleeder valve is required\u003c\/li\u003e\n\u003cli\u003eHeat-related deterioration in the lower radiator hose path\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm the vehicle’s engine and hose routing before installation, especially on Audi A4 Quattro, A5 Quattro, Q5, S4, and S5 applications where lower and lower-right positions are listed. Inspect mating connectors, clamps, and adjacent plastic fittings for wear before installing the new hose. Verify the bleeder valve orientation and ensure the quick connector seats fully to prevent coolant loss.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eGates is a recognized automotive aftermarket supplier with a focus on modular coolant hose assemblies that follow OE-style application requirements. The 51501 is built to match the specified fitment and integrated component layout for the listed Audi vehicles.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":43611121942709,"sku":"BBSC-51501","price":92.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_51501_Top.jpg?v=1774983774","url":"https:\/\/www.partcatalog.com\/products\/gates-51501-radiator-coolant-hose","provider":"PartCatalog","version":"1.0","type":"link"}