Gates 23309 Radiator Coolant Hose - Upper

Gates 23309 Molded Coolant Hose Overview

Gates 23309 is a molded radiator coolant hose built to OEM-quality specifications for upper coolant routing. Made from EPDM, it is shaped for a precise fit on select Toyota cooling systems, including Toyota Sequoia and Toyota Tundra applications.

The Gates Molded Coolant Hose line is engineered for upper, lower, bypass, heater, and other coolant hose positions, giving technicians a direct replacement option for common radiator hose service. Part number 23309 is formed to match the original hose path and dimensions for a cleaner installation.

Key Features

• EPDM construction for coolant system service
• Molded design for accurate routing and fit
• End 1 inside diameter: 1.46 in. (37 mm)
• End 2 inside diameter: 1.46 in. (37 mm)
• Centerline length: 13.4 in. (340 mm)
• No spring and no quick-connect fittings
• Upper hose position
• Gates part number 23309

Detailed Description

This molded radiator coolant hose is intended for upper hose replacement on 2008-2022 Toyota Sequoia and 2007-2021 Toyota Tundra models. The molded shape helps maintain the factory hose path, while the EPDM material is selected for coolant system use where heat and fluid exposure are part of normal operation. Gates 23309 is a practical OE-style replacement when servicing the upper radiator hose on these Toyota trucks and SUVs.

Gates Molded Coolant Hose products are built around OEM-quality specifications and cover a wide range of cooling-system applications. If you are replacing a worn upper hose on a Toyota Sequoia or Toyota Tundra, part number 23309 provides a direct-fit molded configuration for the listed applications.

This part cross-references Bosch 16046 and Continental 66206 for the same application.

Common Problems This Hose Can Address

• Cracked or split upper radiator hose
• Coolant seepage at the hose body
• Collapsed or softened hose material
• Improper hose routing after prior repair
• Heat-related deterioration in the cooling system

Installation Notes and Tips

Verify the hose shape, end diameters, and centerline length against the removed part before installation. Inspect hose clamps, necks, and adjacent cooling-system components for wear or corrosion before fitting the new hose. Confirm the hose is routed without twist or tension so the molded shape follows the factory path on the Toyota Sequoia or Toyota Tundra.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for radiator hose replacement service. Part number 23309 is part of Gates' molded coolant hose line, which is built to cover a broad range of cooling-system applications with application-specific fitment.