Gates 51589 Radiator Coolant Hose - Water Pump To Thermostat

Reliable Radiator Coolant Hose for BMW Vehicles

The Gates Molded Coolant Hose 51589 is engineered to provide dependable coolant flow for select BMW models. Designed with durable materials and precise dimensions, this radiator coolant hose ensures optimal performance and fitment for your vehicle's cooling system.

• Constructed from EPDM, plastic, and steel for durability and heat resistance
• End 1 and End 2 inside diameters measure 1.46 inches (37 mm) and 1.47 inches (37 mm) respectively
• Centerline length of 17 inches (432 mm) for accurate fit
• Single branch design with modular hose compatibility
• Does not contain a spring, ensuring consistent coolant flow

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-molded hoses designed to meet exact OEM specifications. These hoses combine EPDM rubber with plastic and steel reinforcements to withstand high temperatures and pressures typical in automotive cooling systems. The 51589 part benefits from this engineering, providing a reliable replacement hose for BMW cooling applications.

Detailed Product Description

This radiator coolant hose is specifically designed for BMW models including the 320i, 320i xDrive, 328i, 328i GT xDrive, 328i xDrive, 428i, 428i xDrive, 528i, and 528i xDrive. The hose features a centerline length of 17 inches (432 mm) and inside diameters of approximately 1.46 to 1.47 inches (37 mm) at both ends, ensuring a precise fit within the cooling system. The combination of EPDM rubber, plastic, and steel materials provides resistance to heat, ozone, and coolant chemicals, contributing to long service life. The hose’s modular branch design allows for integration with compatible cooling system components without the need for additional springs or reinforcements.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in BMW 3 and 4 Series models
• Prevention of coolant leaks caused by hose degradation
• Restoration of proper coolant flow to avoid engine overheating
• Addressing hose swelling or softening due to heat exposure
• Ensuring secure connections in cooling system branches

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 51589, verify the hose dimensions against the original part to ensure compatibility. Inspect all hose connections and clamps for wear and replace if necessary to maintain a secure seal. Avoid twisting or stretching the hose during installation to prevent premature failure. It is recommended to drain the coolant system before removal and refill with the appropriate coolant after installation.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 51589 to meet or exceed OEM standards for durability and performance. The use of EPDM, plastic, and steel materials ensures resistance to heat and chemical degradation. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support reliable operation in BMW cooling systems.