{"product_id":"dayco-71509-radiator-coolant-hose-lower","title":"Dayco 71509 Radiator Coolant Hose - Lower","description":"\u003ch2\u003eDayco Curved Radiator Hose 71509\u003c\/h2\u003e\u003cp\u003eDayco 71509 is a curved radiator coolant hose built from EPDM for dependable coolant transfer in the engine cooling system. This dual I.D. hose measures 2 1\/2 inches on one end and 3 inches on the other, making it a practical OE-style replacement for select Ford, Motorcraft, and related applications.\u003c\/p\u003e\u003cp\u003eFor buyers searching for a curved radiator hose for Ford truck and van cooling system service, Dayco 71509 offers the correct dual-diameter layout and SAE J20R4 Class D-1 \/ SAE J1684 Type EC compliance. It is a black radiator hose with no heat shield and no protective sleeve.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: Dayco Curved Radiator Hose\u003c\/li\u003e\n\u003cli\u003ePart number: 71509\u003c\/li\u003e\n\u003cli\u003eEPDM construction for coolant hose service\u003c\/li\u003e\n\u003cli\u003eDual I.D. hose design: 2 1\/2 in. to 3 in.\u003c\/li\u003e\n\u003cli\u003eBlack finish for a clean OE-style appearance\u003c\/li\u003e\n\u003cli\u003eMeets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications\u003c\/li\u003e\n\u003cli\u003eNo heat shield and no protective sleeve\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eDayco 71509 is a radiator coolant hose engineered as a curved dual I.D. hose for applications that require a 2 1\/2-inch connection on one end and a 3-inch connection on the other. The EPDM rubber construction is suited for hot coolant circulation, while the curved shape helps route coolant through tight engine bay layouts. This part number is commonly searched as Dayco 71509 radiator hose, Ford radiator hose 71509, and curved coolant hose for Ford truck applications.\u003c\/p\u003e\u003cp\u003eDayco’s Curved Radiator Hose line focuses on replacement hoses that match the size and routing needs of OE cooling systems. If you are servicing a Ford truck or van cooling circuit and need a dual-diameter upper or lower hose configuration, Dayco 71509 is the type of hose to verify against the original part before installation.\u003c\/p\u003e\u003cp\u003eThis part cross-references Motorcraft KM2397 and Gates 22062 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Cooling System Issues It Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCracked or hardened radiator hose material\u003c\/li\u003e\n\u003cli\u003eCoolant leaks at a worn hose connection\u003c\/li\u003e\n\u003cli\u003eIncorrect hose diameter at one end of the cooling circuit\u003c\/li\u003e\n\u003cli\u003eCollapsed or softened hose sections from age and heat\u003c\/li\u003e\n\u003cli\u003eService replacement for a damaged curved coolant hose\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm end diameters, hose routing, and overall length against the removed hose before installation. Inspect clamps, necks, and adjoining coolant pipes for corrosion or wear, and replace any damaged sealing surfaces before refilling the cooling system. After installation, refill with the correct coolant and check for leaks at operating temperature.\u003c\/p\u003e\u003cp\u003eCompatible with select Ford truck and van cooling system applications; verify against the original hose profile and dimensions for proper fit. Search terms often used for this part include Ford radiator hose replacement, Dayco 71509 coolant hose, and dual I.D. curved radiator hose for Ford.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDayco manufactures cooling system hoses to meet published SAE specifications for radiator hose service. Part number 71509 is built to SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for radiator coolant hose applications.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":52396006441141,"sku":"BCWL-71509","price":79.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_71509_Fro.jpg?v=1777757408","url":"https:\/\/www.partcatalog.com\/products\/dayco-71509-radiator-coolant-hose-lower","provider":"PartCatalog","version":"1.0","type":"link"}