Gates 51423 Radiator Coolant Hose - Lower

Overview of Gates Molded Coolant Hose 51423

The Gates Molded Coolant Hose 51423 is engineered for reliable cooling system performance in select Mercedes-Benz models. Designed with durable EPDM, plastic, and steel materials, this radiator coolant hose ensures efficient coolant flow and long-lasting service.

• Constructed from EPDM, plastic, and steel for durability and heat resistance
• Multiple inside diameters: 0.65 inches (17 mm) and 1.4 inches (36 mm) at hose ends
• Centerline length options include 23, 46, and 584 mm for precise fitment
• Includes one branch with male and female quick connectors for secure connections
• Does not contain a spring, maintaining consistent coolant flow

Detailed Product Description

This radiator coolant hose from the Gates Molded Coolant Hose line is designed to meet the specific cooling system requirements of Mercedes-Benz vehicles such as the GL450, GLE43 AMG, GLE400, GLE450 AMG, GLE500e, GLE550e, GLS450, and ML400. The combination of EPDM rubber, plastic, and steel materials provides resistance to heat, pressure, and chemical exposure commonly found in automotive cooling systems. The hose features multiple inside diameters at its ends—0.65 inches (17 mm) and 1.4 inches (36 mm)—to ensure a precise and secure fit. Its centerline length options (23 mm, 46 mm, and 584 mm) accommodate the complex routing required in these Mercedes-Benz models. Additionally, the hose includes one branch equipped with male and female quick connectors, facilitating straightforward installation and reliable coolant flow without the need for springs.

The Molded Coolant Hose product line by Gates focuses on delivering pre-formed hoses that match original equipment specifications. This approach reduces installation time and potential leaks by providing exact fitment and integrated connectors, making it suitable for professional repairs and maintenance.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Mercedes-Benz GL450 and GLE series
• Addressing coolant leaks caused by deteriorated or damaged hoses
• Restoring proper coolant circulation to prevent engine overheating
• Ensuring secure connections with integrated quick connectors to avoid coolant loss
• Maintaining system integrity in hybrid models like GLE500e and GLE550e

Installation Notes and Tips

• Verify hose dimensions and connector types against vehicle specifications before installation
• Ensure coolant system is depressurized and cooled prior to hose replacement
• Inspect mating surfaces and clean thoroughly to prevent leaks
• Use appropriate clamps or connectors as specified by the vehicle manufacturer
• Check for proper routing to avoid kinks or contact with moving parts

Quality Assurance and Warranty

Gates Molded Coolant Hose 51423 is manufactured to meet or exceed OEM standards for durability and performance. The use of EPDM, plastic, and steel materials ensures resistance to heat, pressure, and chemical degradation. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support reliable operation in Mercedes-Benz cooling systems.