{"product_id":"gates-21150-radiator-coolant-hose","title":"Gates 21150 Radiator Coolant Hose - Lower or Upper - Radiator To Pipe","description":"\u003ch2\u003eGates 21150 Molded Coolant Hose\u003c\/h2\u003e\u003cp\u003eGates 21150 is a molded radiator coolant hose built for lower cooling-system routing on select Buick, Cadillac, and Oldsmobile applications. It uses EPDM construction and an internal spring to help maintain hose shape under heat and vacuum conditions.\u003c\/p\u003e\u003cp\u003eThe Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant hose applications with OEM-quality specifications. For buyers replacing a lower radiator hose on a 1979-1985 Buick Riviera, Cadillac Eldorado, Cadillac Seville, or Oldsmobile Toronado, this part number provides a direct replacement option without needing to source an OE dealer hose.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: 21150\u003c\/li\u003e\n\u003cli\u003eBrand line: Gates Molded Coolant Hose\u003c\/li\u003e\n\u003cli\u003eEPDM rubber construction for coolant-system service\u003c\/li\u003e\n\u003cli\u003eMolded hose shape for factory-style routing\u003c\/li\u003e\n\u003cli\u003eInternal spring included\u003c\/li\u003e\n\u003cli\u003eCenterline length: 16.2 in. (411 mm)\u003c\/li\u003e\n\u003cli\u003eEnd inside diameters: 1.5 in. (38 mm) and 1.81 in. (46 mm)\u003c\/li\u003e\n\u003cli\u003eLower hose application for select GM vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eGates 21150 is a molded radiator coolant hose engineered for lower hose replacement on specific 1979-1985 Buick Riviera, Cadillac Eldorado, Cadillac Seville, and Oldsmobile Toronado models. The molded profile supports the original hose routing, while EPDM material is commonly used in cooling-system service for resistance to heat and coolant exposure. The internal spring helps the hose retain its shape in demanding lower-hose applications.\u003c\/p\u003e\u003cp\u003eThis part cross-references Dayco 71217 for the same application. If you are replacing a lower coolant hose on a 1980-1985 Cadillac Eldorado or a 1979 Buick Riviera, Gates 21150 provides a fitment-specific replacement path. It also matches lower hose needs on 1979-1985 Oldsmobile Toronado and 1980-1985 Cadillac Seville applications listed in the fitment data.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCracked or deteriorated lower radiator hose\u003c\/li\u003e\n\u003cli\u003eCoolant leaks at the hose body\u003c\/li\u003e\n\u003cli\u003eCollapsed hose sections under operating temperature\u003c\/li\u003e\n\u003cli\u003eIncorrect hose routing after a replacement\u003c\/li\u003e\n\u003cli\u003eFitment issues when replacing an OE-style molded hose\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the vehicle year, make, model, and lower-hose routing before installation. Compare the end inside diameters and centerline length to the removed hose to confirm match-up. Inspect adjoining clamps, necks, and coolant passages for wear or corrosion before installing the new hose. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eGates manufactures this molded coolant hose to OEM-quality specifications for the listed applications. The Gates Molded Coolant Hose line is built to cover a wide range of replacement cooling-hose needs, including lower radiator hose service on the vehicles shown in the fitment data.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 1979 Buick Riviera, Lower\u003c\/li\u003e\n\u003cli\u003eFits 1980-1985 Buick Riviera, Lower\u003c\/li\u003e\n\u003cli\u003eFits 1979 Cadillac Eldorado, Lower\u003c\/li\u003e\n\u003cli\u003eFits 1980-1985 Cadillac Eldorado, Lower\u003c\/li\u003e\n\u003cli\u003eFits 1980-1985 Cadillac Seville, Lower\u003c\/li\u003e\n\u003cli\u003eFits 1979 Oldsmobile Toronado, Lower\u003c\/li\u003e\n\u003cli\u003eFits 1980-1985 Oldsmobile Toronado, Lower\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":45307232649397,"sku":"BBSC-21150","price":35.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_21150_Fro.jpg?v=1775145933","url":"https:\/\/www.partcatalog.com\/products\/gates-21150-radiator-coolant-hose","provider":"PartCatalog","version":"1.0","type":"link"}