Rein CHH0789 HVAC Heater Hose - Heater Core Extension Inlet or Heater Core Extension Outlet

OE Heater Hose for Ford and Lincoln

Rein CHH0789 is an OE-quality HVAC heater hose built for European-vehicle-style fit and function in Ford and Lincoln applications. It is made from EPDM and formed to match the original hose shape, branch layout, and thermoplastic quick-connect design used on the vehicle.

Compatible With 2011-2014 Ford F-150 heater core extension inlet, 2011-2014 Ford Expedition heater core extension outlet, 2015-2017 Ford Expedition heater core extension inlet, 2011-2014 Lincoln Navigator heater core extension outlet, and 2015-2017 Lincoln Navigator heater core extension inlet.

Key Features

• Rein HVAC heater hose, part number CHH0789
• EPDM construction for heater hose service
• Black finish
• Direct replacement shape and branch layout
• Thermoplastic quick-connect fittings match OE-style connections
• No clamps included
• End 1 inside diameter: 19.56 mm; end 2 inside diameter: 14.22 mm
• End 1 outside diameter: 30.56 mm; end 2 outside diameter: 19.05 mm

Detailed Description

Rein CHH0789 is an HVAC heater hose designed as a direct replacement for the original hose assembly on select Ford Expedition, Ford F-150, and Lincoln Navigator models. The hose follows the OE configuration closely, including the branch geometry and quick-connect fittings, which helps maintain the factory routing and connection style. This part cross-references Ford OE number BL3Z18472D for the same application.

For buyers searching for a 2011-2014 Ford F-150 heater core extension inlet hose, a 2011-2014 Ford Expedition heater core extension outlet hose, or a 2015-2017 Lincoln Navigator heater core extension inlet hose, CHH0789 provides the correct OE-style replacement format. The EPDM material and molded construction are selected for heater circuit service in the engine bay.

What It Helps Address

• Coolant leakage at a cracked or aged heater hose
• Loss of heater performance from restricted coolant flow
• Broken or worn quick-connect fittings
• Incorrect hose routing after prior repair work
• Fitment issues caused by non-OE hose shapes

Installation Notes

Verify the vehicle year, model, and heater core extension position before installation. This hose is listed for heater core extension inlet and outlet applications depending on the vehicle, so match the original routing and connection points exactly. Because clamps are not included, reuse or replace any required clamps separately if your application uses them.

Quality Assurance

Rein markets this hose as OE-quality replacement hardware for European-vehicle-style applications, with dimensions and connector design matched to the original assembly. Part number CHH0789 is built to the specified OE-style fitment for Ford Expedition, Ford F-150, and Lincoln Navigator heater hose service.