Gates 51643 Radiator Coolant Hose - Upper

Reliable Radiator Coolant Hose for BMW 760i and 760Li

The Gates Molded Coolant Hose part number 51643 is engineered to meet the cooling system demands of BMW 760i and 760Li models. Designed with durable materials and precise dimensions, this radiator coolant hose ensures efficient coolant flow and system integrity.

• Constructed from EPDM, plastic, and steel for durability and heat resistance
• Molded design with 3 branches and 5 female quick connectors for modular installation
• Multiple inside diameters ranging from 0.5 to 1.2 inches (13 to 30 mm) to fit specific coolant pathways
• Centerline lengths between 15 and 16.5 inches (419 mm) for accurate fitment
• Does not contain springs, ensuring consistent hose flexibility and performance

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses that integrate multiple branches and quick connectors for streamlined coolant routing. This product line is designed to simplify installation and maintenance while maintaining OEM-level performance and reliability. Part number 51643 exemplifies this approach with its molded construction and modular components tailored for BMW cooling systems.

Detailed Product Description

This radiator coolant hose is specifically designed for BMW 760i and 760Li vehicles, providing a direct replacement that matches original equipment specifications. The combination of EPDM rubber, plastic, and steel materials offers resistance to heat, pressure, and coolant chemicals. The hose features three branches and five female quick connectors, allowing for a modular setup that fits complex coolant circuits. With inside diameters ranging from 0.5 to 1.2 inches (13 to 30 mm) and centerline lengths around 15 to 16.5 inches (419 mm), it ensures precise fitment and reliable coolant flow.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in BMW 760i and 760Li
• Resolving coolant leaks caused by hose degradation or damage
• Maintaining proper coolant circulation to prevent engine overheating
• Upgrading to a molded hose assembly for improved coolant system reliability
• Addressing coolant hose failures due to aging or exposure to harsh conditions

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid burns or injury. Verify that all quick connectors are securely attached to prevent leaks. Inspect mating surfaces for debris or damage prior to hose installation. Properly route the hose assembly to avoid kinks or contact with moving parts. Use OEM recommended coolant and follow vehicle manufacturer torque specifications for clamps if applicable.

Quality Assurance and Warranty

Gates Molded Coolant Hose part number 51643 is manufactured to meet strict quality standards for durability and performance. The use of EPDM, plastic, and steel materials ensures resistance to heat and chemical exposure typical in automotive cooling systems. While specific warranty details are not provided, Gates products generally adhere to industry standards for reliability and fitment in BMW 760i and 760Li vehicles.