{"product_id":"gates-51421-radiator-coolant-hose-upper","title":"Gates 51421 Radiator Coolant Hose - Upper","description":"\u003ch2\u003eReliable Radiator Coolant Hose for Mercedes-Benz Vehicles\u003c\/h2\u003e\u003cp\u003eThe Gates Molded Coolant Hose 51421 is engineered to provide dependable cooling system performance for select Mercedes-Benz models. Designed with durable materials and precise dimensions, this radiator coolant hose ensures a secure fit and efficient coolant flow for your C350, E300, E350, and GLK350 vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from EPDM, plastic, and steel for durability and heat resistance\u003c\/li\u003e\n\u003cli\u003eMolded design with a centerline length of 533 mm (21 inches) for exact fitment\u003c\/li\u003e\n\u003cli\u003eFeatures two male quick connectors and two Henn quick connectors for modular hose assembly\u003c\/li\u003e\n\u003cli\u003eEnd 1 and End 2 inside diameters both measure 36 mm (1.4 inches) for consistent coolant flow\u003c\/li\u003e\n\u003cli\u003eContains no internal spring, ensuring smooth coolant passage without obstruction\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 precision-engineered hoses that are molded to exact specifications for specific vehicle applications. This approach enhances fitment accuracy and reduces installation time. The 51421 part benefits from this product line by offering a molded hose with integrated quick connectors, designed to meet the cooling system requirements of Mercedes-Benz models such as the C350, E300, E350, and GLK350.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis radiator coolant hose is made from a combination of EPDM rubber, plastic, and steel components, providing resistance to heat, pressure, and chemical exposure typical in automotive cooling systems. The molded construction ensures a precise shape that matches the original equipment specifications. With a centerline length of 533 mm (21 inches) and consistent inside diameters of 36 mm (1.4 inches) on both ends, the hose maintains optimal coolant flow. The inclusion of two male quick connectors and two Henn quick connectors allows for modular assembly and secure connections without the need for additional clamps or fittings.\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 Mercedes-Benz C350, E300, E350, and GLK350\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\u003eElimination of coolant hose failures due to material fatigue or heat damage\u003c\/li\u003e\n\u003cli\u003eEnsuring secure connections with quick connectors to reduce maintenance time\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the cooling system is fully depressurized and cooled before removing the old hose. Verify that the inside diameters and centerline length match the original hose to guarantee proper fitment. The molded design and quick connectors simplify installation, but confirm that all connections are secure to prevent leaks. Avoid twisting or stretching the hose during installation to maintain integrity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eGates Molded Coolant Hose 51421 is manufactured to meet or exceed OEM standards for durability and performance. The use of EPDM, plastic, and steel materials ensures resistance to heat and chemical exposure common in automotive cooling systems. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support reliable operation in Mercedes-Benz C350, E300, E350, and GLK350 vehicles.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":51993848119477,"sku":"BBSC-51421","price":40.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_51421_Top.jpg?v=1775163921","url":"https:\/\/www.partcatalog.com\/products\/gates-51421-radiator-coolant-hose-upper","provider":"PartCatalog","version":"1.0","type":"link"}