Universal Air HT399940C HVAC Heater Core - Front or Rear

Heater Core Aluminum for Rear and Front HVAC Service

Universal Air HT399940C is an aluminum HVAC heater core for select Ford, Lincoln, Jeep, Chrysler, and Dodge applications. It is built for vehicles with rear or front heater core locations, depending on the application, and supports cabin heat restoration when the original core is leaking, restricted, or no longer transferring heat properly.

Key Features

• Aluminum heater core construction
• Compatible with rear and front HVAC locations, depending on vehicle application
• Direct-fit replacement for select Expedition, Navigator, Commander, Grand Cherokee, Voyager, Town & Country, Caravan, and Grand Caravan models
• Part number HT399940C for ordering and catalog lookup
• Universal Air Heater Core Aluminum product line

Fitment Coverage

• Fits 2015-2017 Ford Expedition, rear.
• Fits 2007-2009 Ford Expedition, rear.
• Fits 2011-2017 Lincoln Navigator, front.
• Fits 2007-2009 Lincoln Navigator, front.
• Fits 2006-2010 Jeep Commander, rear.
• Fits 2005-2010 Jeep Grand Cherokee, rear.
• Fits 2010 Lincoln Navigator, rear.
• Fits 2006-2008 Chrysler Voyager, rear.
• Fits 2002-2007 Chrysler Town & Country, rear.
• Fits 2006-2007 Dodge Caravan, rear.
• Fits 2006-2007 Dodge Grand Caravan, rear.
• Fits 2001 Chrysler Town & Country, rear, with Dual Zone Controls.

Detailed Description

Universal Air HT399940C is an aluminum heater core for HVAC systems that use a rear or front core location, depending on the vehicle. It is a practical replacement for service work on Ford Expedition and Lincoln Navigator models, as well as Jeep Commander, Jeep Grand Cherokee, Chrysler Voyager, Chrysler Town & Country, Dodge Caravan, and Dodge Grand Caravan applications. Use HT399940C when the existing heater core is clogged, corroded, or leaking coolant into the HVAC housing.

Common Repair Symptoms

• Weak or uneven cabin heat
• Coolant odor inside the vehicle
• Fogging from heater core leakage
• Loss of heat in rear HVAC systems
• Restricted coolant flow through the heater circuit

Installation Notes and Tips

Confirm the vehicle’s HVAC position before ordering, since this part is listed for both rear and front applications across different models. Compare the original core dimensions, hose connections, and HVAC case layout before installation. On vehicles with rear HVAC, inspect the coolant lines and blend door operation during service to verify the repair.

Quality Assurance

Universal Air Heater Core Aluminum parts are cataloged for specific vehicle applications to support accurate replacement selection. Verify fitment by year, make, model, and HVAC position before installation. Part number HT399940C is the reference for this heater core application.