Gates 22440 Radiator Coolant Hose

BMW Lower Radiator Coolant Hose

Gates 22440 is a molded lower radiator coolant hose built to OEM-quality specifications for select BMW cooling systems. It uses EPDM construction and the correct molded shape to match the original routing on covered applications, including BMW Z3, 323i/323is/323ti, 328i/328is, M3, 320i, 325i, and 325is models.

Key Features

• EPDM rubber construction for coolant service
• Molded hose profile for factory-style fitment
• End 1 inside diameter: 1.61 in. (41 mm)
• End 2 inside diameter: 1.61 in. (41 mm)
• Centerline length: 15.3 in. (389 mm)
• No spring and no quick-connect fittings
• Lower radiator hose application for select BMW cooling systems

Product Details

This Gates Molded Coolant Hose line is built for upper, lower, bypass, heater, and other coolant routing needs, with this part number focused on lower radiator hose replacement. Gates 22440 follows the molded shape needed to maintain proper hose routing and connection alignment on the listed BMW applications. It is a direct-fit style replacement for BMW Z3 lower radiator hose service, as well as lower hose replacement on BMW 3 Series and M3 applications listed in the fitment data.

This part cross-references Continental 62476 and Dayco 71664 for the same application.

Common Cooling System Issues It Can Address

• Cracked or split lower radiator hose
• Coolant leaks at the hose body or ends
• Softening, swelling, or heat-related hose deterioration
• Poor hose routing from an incorrect replacement part
• Cooling system service on BMW Z3, 323i, 328i, and M3 models

Installation Notes and Tips

• Verify engine and chassis notes before ordering, especially for BMW Z3 and 328i applications with specific configuration requirements.
• Inspect hose clamps, necks, and adjacent cooling components before installation.
• Drain coolant safely and confirm the system is fully refilled and bled after replacement.
• Check the hose routing against the original part to confirm molded orientation and length.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use in covered BMW applications. The molded EPDM design and application-specific dimensions support proper fitment on the listed vehicles, including 1992-2002 BMW models in the fitment range for this part.