{"product_id":"gates-21649-radiator-coolant-hose","title":"Gates 21649 Radiator Coolant Hose - Upper","description":"\u003ch2\u003eOverview of Gates Molded Coolant Hose 21649\u003c\/h2\u003e\u003cp\u003eThe Gates Molded Coolant Hose 21649 is designed for reliable cooling system performance in select Chevrolet and GMC trucks and SUVs. Engineered with durable EPDM material, this radiator coolant hose ensures proper coolant flow and heat dissipation for vehicles like the Chevrolet C20 and GMC K3500.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from high-quality EPDM for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eMolded design for precise fit and secure connections\u003c\/li\u003e\n\u003cli\u003eEnd 1 inside diameter: 1.26 inches (32 mm)\u003c\/li\u003e\n\u003cli\u003eEnd 2 inside diameter: 1.5 inches (38 mm)\u003c\/li\u003e\n\u003cli\u003eCenterline length of 29.4 inches (747 mm)\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple Chevrolet and GMC truck models\u003c\/li\u003e\n\u003cli\u003eDoes not contain internal springs or quick connect fittings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the 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 exact specifications, reducing installation time and improving coolant system reliability. This product line uses EPDM material known for its resistance to heat, ozone, and coolant chemicals, making it suitable for heavy-duty applications in trucks and SUVs. The molded construction ensures consistent shape and fitment, which is critical for maintaining proper coolant flow and preventing leaks.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Gates Molded Coolant Hose 21649 is a radiator coolant hose specifically designed for use in Chevrolet and GMC vehicles including the C20, C20 Suburban, C30, C2500, C2500 Suburban, C3500, K20 Suburban, K30, K3500, R30, and R3500 models. Made from EPDM, this hose offers excellent resistance to heat and coolant fluids, helping to maintain system integrity under demanding conditions. The molded design provides a precise fit with an inside diameter of 1.26 inches (32 mm) on one end and 1.5 inches (38 mm) on the other, with a centerline length of 29.4 inches (747 mm). This hose does not include springs or quick connect fittings, simplifying installation and reducing potential failure points.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement of worn or cracked radiator coolant hoses in Chevrolet and GMC trucks\u003c\/li\u003e\n\u003cli\u003ePrevention of coolant leaks caused by hose degradation or improper fit\u003c\/li\u003e\n\u003cli\u003eRestoration of proper coolant flow to avoid engine overheating\u003c\/li\u003e\n\u003cli\u003eAddressing hose swelling or softening due to heat exposure\u003c\/li\u003e\n\u003cli\u003eEliminating coolant contamination from hose material breakdown\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the engine is cool before removing the old hose to prevent burns\u003c\/li\u003e\n\u003cli\u003eCheck hose connections and clamps for corrosion or damage and replace if necessary\u003c\/li\u003e\n\u003cli\u003eVerify the correct orientation of the molded hose before installation\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damaging the hose or fittings during installation\u003c\/li\u003e\n\u003cli\u003eInspect the cooling system for leaks after installation and during initial operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eGates Molded Coolant Hose 21649 is manufactured to meet or exceed OEM specifications for durability and performance. The EPDM material and molded construction provide resistance to heat, ozone, and coolant chemicals, ensuring long service life. While specific warranty details are not provided here, Gates products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":45307250213045,"sku":"BBSC-21649","price":38.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_21649_Fro.jpg?v=1775145989","url":"https:\/\/www.partcatalog.com\/products\/gates-21649-radiator-coolant-hose","provider":"PartCatalog","version":"1.0","type":"link"}