Gates 23723 Radiator Coolant Hose - Lower

Gates 23723 Lower Coolant Hose for Toyota 4Runner

The Gates Molded Coolant Hose 23723 is a lower radiator coolant hose built to OEM-quality specifications for select Toyota 4Runner applications. It is formed to match the original hose routing and dimensions, helping restore proper coolant flow in the engine cooling system.

Compatible with 2010-2024 Toyota 4Runner, lower position, this molded EPDM hose is shaped for a direct replacement on the specified application. Gates 23723 is part of the Gates Molded Coolant Hose line, which covers upper, lower, bypass, heater, and other coolant hose needs.

Key Features

• Part number: 23723
• Brand: Gates Molded Coolant Hose
• Part type: radiator coolant hose
• Fits 2010-2024 Toyota 4Runner, lower
• EPDM construction for coolant-system use
• Molded design for OE-style hose routing
• End inside diameter: 1.31 in. (33 mm) at both ends
• Centerline length: 23 in. (584 mm)
• No spring, no modular hose, no quick connect fittings

Product Details

Gates 23723 is a molded lower coolant hose engineered for the Toyota 4Runner cooling system. The EPDM material is commonly used in radiator hose applications for its resistance to heat and coolant exposure, while the molded shape supports the original hose path and fitment requirements. This part cross-references Dayco 72548 and Continental 66666 for the same application.

The Gates Molded Coolant Hose line is built to cover a wide range of replacement cooling applications, including lower radiator hose service. For Toyota 4Runner owners replacing a worn or leaking lower hose, Gates 23723 provides a direct-fit solution for the listed model years.

Common Problems This Hose Can Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or collapse of the original hose
• Improper hose routing after a previous repair
• Loss of coolant flow caused by hose deterioration
• Cooling-system service on a Toyota 4Runner lower hose connection

Installation Notes and Tips

Verify the vehicle year, engine configuration, and lower hose routing before installation. Compare the original hose length, molded bends, and end diameters to Gates 23723 to confirm the correct replacement for your Toyota 4Runner. Inspect hose clamps, necks, and adjacent cooling components for wear or corrosion before reassembly.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed application. The Gates 23723 part number is supported by a broad replacement hose catalog designed for radiator, heater, bypass, and other coolant-system service needs.