Universal Air HT399964C HVAC Heater Core

Heater Core for Ford Edge and Lincoln MKX

Universal Air HT399964C is an aluminum HVAC heater core for select 2007-2015 Ford Edge and 2007-2015 Lincoln MKX applications. It is built for direct replacement service in vehicles using the listed OE-style fitment, including Lincoln MKX models with OE number 7T4Z18476A.

Key Features

• Aluminum heater core construction for HVAC service replacement
• Fits 2007-2015 Ford Edge, N/A
• Fits 2007-2015 Lincoln MKX, N/A
• OE number reference for Lincoln MKX: 7T4Z18476A
• Universal Air Heater Core Aluminum line
• Part number HT399964C for catalog matching and ordering

Product Details

This Universal Air heater core is part of the Heater Core Aluminum product line and is cataloged as HT399964C. It is intended for HVAC repair work where the original heater core has leaked, restricted coolant flow, or no longer transfers heat effectively through the cabin heater system. For Ford Edge and Lincoln MKX vehicles in the listed years, this heater core provides a direct-fit replacement path based on the confirmed application data.

This part cross-references OE number 7T4Z18476A for the same application. Search terms such as Ford Edge heater core aluminum HT399964C and Lincoln MKX heater core HT399964C can help identify the correct HVAC replacement for these vehicles.

Common Issues This Part Can Address

• Loss of cabin heat
• Coolant odor inside the vehicle
• Heater core leakage
• Restricted coolant flow through the HVAC system
• Uneven or weak defrost performance tied to heater output

Installation Notes and Tips

Verify the vehicle year, make, and model before ordering. Confirm the OE number on the original part when possible, especially for Lincoln MKX applications. Heater core replacement typically requires access to the HVAC case, so inspect related hoses, seals, and coolant condition during service. After installation, refill and bleed the cooling system according to factory procedure.

Quality Assurance

Universal Air catalogs this heater core as part of its aluminum HVAC component line for the listed Ford Edge and Lincoln MKX applications. Confirm fitment against the vehicle’s original part number and HVAC configuration before installation.