Gates 23870 Radiator Coolant Hose - Lower

Gates 23870 Molded Coolant Hose Overview

The Gates 23870 molded coolant hose is a radiator coolant hose built to OEM-quality specifications for select Ford and Lincoln applications. It is formed from EPDM and shaped for the lower coolant routing used on 2005-2006 Ford Expedition and 2005-2006 Lincoln Navigator models.

Gates Molded Coolant Hose products cover upper, lower, bypass, heater, and other coolant paths, giving technicians a direct replacement option for common cooling-system service. The 23870 part number is part of that molded hose line and is engineered for a precise fit in the intended application.

Key Features

• Brand: Gates Molded Coolant Hose
• Part number: 23870
• Radiator coolant hose for lower hose routing
• EPDM construction for cooling-system use
• Molded design for application-specific routing
• End inside diameter: 1.5 in. (38 mm) at both ends
• Centerline length: 25.23 in. (641 mm)
• No spring and no quick-connect fittings

Detailed Description

Gates 23870 is a molded lower radiator coolant hose for 2005-2006 Ford Expedition and 2005-2006 Lincoln Navigator models. The molded shape follows the intended coolant path, helping maintain proper hose routing in the engine bay while replacing a worn or damaged original hose. If you are sourcing a Ford Expedition lower radiator hose or a Lincoln Navigator lower coolant hose, this part number provides a direct replacement reference.

This Gates molded coolant hose line is built around OE-style dimensions and application-specific fitment. The 1.5-inch inside diameter at both ends and 25.23-inch centerline length support the intended lower hose configuration for the listed vehicles. Part number 23870 also cross-references 5L1Z 8286 BB for the same application.

What It Helps Fix

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or collapse in the original hose
• Improper hose routing after cooling-system service
• Loss of coolant caused by hose deterioration
• Fitment issues when replacing the lower hose on the listed Ford and Lincoln models

Installation Notes and Tips

Verify the hose routing against the original part before installation and confirm the lower hose position on the vehicle. Inspect adjoining clamps, necks, and cooling-system connections for wear or corrosion before installing the new hose. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed Ford Expedition and Lincoln Navigator applications. The molded EPDM construction and application-specific dimensions support accurate replacement service for the intended cooling-system repair.