Gates 24863 Radiator Coolant Hose - Reservoir (Lower)

Gates Molded Coolant Hose for BMW

The Gates Molded Coolant Hose, part number 24863, is a vehicle-specific radiator coolant hose built for lower reservoir applications on select BMW models. It uses EPDM, plastic, and steel construction and follows an OE-style modular design with integrated quick-connect fittings for a precise service replacement.

Gates Molded Coolant Hose line products are built around application-specific routing and factory-style integrated components, making them a direct match for systems that use molded hose assemblies rather than universal hose lengths. This Gates 24863 hose is made for BMW 228i, 320i, and 328i cooling system service where the lower reservoir hose connection is required.

Key Features

• Part number 24863 for select BMW cooling system applications
• OE-style molded coolant hose construction
• EPDM, plastic, and steel materials for application-specific fitment
• Two female quick connectors for factory-style connection points
• Centerline length: 23 in. (584 mm)
• End 1 inside diameter: 0.9 in. (23 mm)
• End 2 inside diameter: 1.05 in. (27 mm)
• Modular hose design with molded routing

Detailed Description

This radiator coolant hose is engineered for lower reservoir use on compatible BMW cooling systems and follows the molded, modular format used in many OE assemblies. The design supports a clean routing path and factory-style connection geometry, which is important when replacing a hose that includes integrated connectors rather than a simple straight section. If you are servicing a BMW 228i, BMW 320i, or BMW 328i cooling circuit, Gates 24863 provides the correct molded layout for the listed applications.

This part cross-references Davico Mfg 17513 for the same application.

What This Hose Helps Address

• Coolant leaks at a cracked or aged lower reservoir hose
• Broken or worn quick-connect fittings at the hose ends
• Improper hose routing after prior cooling system repairs
• Heat-related deterioration in molded EPDM coolant hose sections
• Fitment issues caused by using a non-molded replacement hose

Installation Notes and Tips

• Verify the vehicle’s lower reservoir hose routing before installation.
• Inspect the mating connectors and sealing surfaces for wear or contamination.
• Confirm end diameters and connector style against the removed hose.
• Check the cooling system for leaks after installation and refill service.
• Use the vehicle’s service procedure for proper coolant bleeding.

Quality Assurance

Gates is a recognized automotive aftermarket supplier with a focus on modular coolant hose assemblies that mirror OE-style component layouts and application-specific fitment. Part number 24863 is built for the listed BMW applications and follows the factory-style modular hose format used in modern cooling systems.