Gates 23878 Radiator Coolant Hose - Heater - Inlet Assembly or Heater Inlet

Gates Molded Coolant Hose for Ford and Lincoln

The Gates 23878 molded coolant hose is built for specific heater inlet applications on select Ford Expedition and Lincoln Navigator models. It follows OE-style routing and integrates the components needed for a direct replacement in the cooling system.

Gates Molded Coolant Hose products are application-specific assemblies made to match original equipment layouts, including molded shapes and integrated connection points. This helps maintain proper coolant flow and fitment in vehicles that use a modular hose design.

Key Features

• Application-specific molded coolant hose for heater inlet service
• OE-style modular assembly for select Ford Expedition and Lincoln Navigator vehicles
• Constructed from EPDM, plastic, and steel
• Includes molded branches and integrated quick-connect fittings
• Built with a check valve and flow restrictor as part of the modular design
• Part number 23878 for easy identification

Detailed Description

The Gates 23878 radiator coolant hose is a molded modular assembly engineered for select Ford Expedition and Lincoln Navigator cooling system layouts. It is designed around the original hose routing and connection style used on heater inlet applications, including integrated OE-type components such as a branch, two female quick connectors, a check valve, and a flow restrictor. This makes it a practical replacement when servicing the heater inlet assembly on 2007-2010 Ford Expedition and 2007-2010 Lincoln Navigator applications listed below.

Compatible With: Fits 2009-2010 Ford Expedition, Heater - Inlet Assembly; Fits 2010 Lincoln Navigator, Heater Inlet; Fits 2007-2009 Lincoln Navigator, Heater Inlet; Fits 2007-2008 Ford Expedition, Heater Inlet. This part cross-references Dorman OE Solutions 626-540 for the same application.

Common Problems This Hose Can Address

• Cracked or deteriorated heater inlet hose material
• Coolant leaks at molded hose sections or connector points
• Improper fit from a non-OE-style replacement hose
• Restricted coolant flow caused by a damaged check valve or restrictor
• Service issues on modular cooling system hose assemblies

Installation Notes and Tips

Verify the vehicle year, make, model, and heater inlet configuration before installation. Inspect the mating quick-connect fittings, seals, and nearby cooling system components for wear or contamination before connecting the new hose. Because this is a molded modular assembly, correct routing and connector engagement are important for leak-free operation.

Quality Assurance

Gates is a recognized automotive aftermarket supplier with experience in modular coolant hose assemblies. The 23878 is manufactured for specific applications and built to follow OE-style specifications for the listed Ford Expedition and Lincoln Navigator fitments.