Gates 51609 Radiator Coolant Hose - Auxiliary Radiator Outlet

Reliable Radiator Coolant Hose for BMW 550i and 650i Models

The Gates Molded Coolant Hose 51609 is engineered to meet the cooling system demands of select BMW vehicles. Designed with durable materials and precise dimensions, this radiator coolant hose ensures efficient coolant flow and system integrity for BMW 550i and 650i series models.

• Constructed from EPDM, plastic, and steel for durability and heat resistance
• Molded design with two female quick connectors for secure, leak-free connections
• Centerline length of 72 inches (1829 mm) for exact fitment
• Consistent inside diameter of 0.61 inches (15 mm) on both ends
• Modular hose with two quick connect fittings for easy integration

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses that combine molded construction with modular quick connect fittings. This design approach enhances installation accuracy and system reliability, reducing the risk of leaks and coolant loss. The 51609 part benefits from this product line's emphasis on durable materials and exact fitment for specific vehicle applications.

Detailed Product Description

The Gates 51609 radiator coolant hose is molded from EPDM rubber, plastic, and steel components to withstand high temperatures and pressure within the cooling system. Both ends feature a uniform inside diameter of 0.61 inches (15 mm), ensuring consistent coolant flow. The hose measures 72 inches (1829 mm) in centerline length, providing a precise fit for the cooling circuits in BMW 550i, 550i GT, 550i GT xDrive, 550i xDrive, 650i, 650i Gran Coupe, 650i xDrive, and 650i xDrive Gran Coupe models. The inclusion of two female quick connectors facilitates secure and efficient hose connections without the need for additional clamps or fittings.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in BMW 550i and 650i vehicles
• Resolving coolant leaks caused by degraded or damaged hoses
• Maintaining optimal engine temperature by ensuring proper coolant circulation
• Preventing overheating issues related to compromised hose integrity
• Upgrading to a molded hose with quick connectors for improved serviceability

Installation Notes and Tips

Ensure the engine is cool before removing the old hose to avoid burns. Verify that the inside diameters and centerline length match the original hose specifications. The two female quick connectors on this molded hose simplify installation by providing secure attachment points. Inspect all connection points for proper seating to prevent leaks. No spring reinforcement is included, so handle the hose carefully to avoid kinks during installation.

Quality Assurance and Warranty

Gates Molded Coolant Hose 51609 is manufactured to meet OEM standards for durability and performance. The use of EPDM, plastic, and steel materials ensures resistance to heat, pressure, and chemical exposure typical in automotive cooling systems. While specific warranty details are not provided, Gates products generally adhere to strict quality control processes to support reliable operation in BMW 550i and 650i vehicles.