Gates 22455 Radiator Coolant Hose - Upper

Gates 22455 Molded Coolant Hose for Mazda Miata

Gates 22455 is a molded radiator coolant hose built to OEM-quality specifications for the upper coolant circuit on select Mazda Miata models. It uses EPDM construction and a formed shape to match the original routing for a cleaner, more direct replacement.

Compatible with 1999-2005 Mazda Miata upper hose applications, this Gates Molded Coolant Hose line is built for radiator, bypass, heater, and other coolant system positions where a shaped hose is required. If you are replacing a worn Mazda Miata upper radiator hose, part number 22455 provides a direct-fit service option.

Key Features

• EPDM rubber construction for coolant system service
• Molded design for OE-style hose routing
• 1.18 in. inside diameter at both ends
• 13 in. centerline length
• No spring, no branch, and no quick-connect fittings
• Fits upper coolant hose applications on select Mazda Miata models

Product Details

The Gates Molded Coolant Hose line is engineered for replacement applications that require a pre-formed hose shape rather than a straight universal hose. Gates 22455 follows OEM-quality specifications and is intended for the upper radiator hose position on 1999-2005 Mazda Miata models. The molded profile helps maintain the original hose path in the engine bay, which is important for proper coolant routing and service fitment.

This part cross-references Continental 66022 for the same application.

Common Replacement Reasons

• Cracked or hardened upper radiator hose
• Coolant seepage at the hose body or ends
• Collapsed or misshaped hose routing
• Heat-related rubber deterioration
• Service replacement during cooling system repair

Installation Notes

Verify the hose routing, end diameters, and centerline length before installation. Drain the cooling system as needed, inspect the hose necks and clamps, and confirm the hose seats fully on the radiator and engine connections. For best results, replace any damaged clamps and refill the cooling system according to Mazda service procedures.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for consistent fit and cooling system service on the Mazda Miata. Part number 22455 is built as a direct replacement for the listed upper hose application.