Universal Air HT2004C HVAC Heater Core

Heater Core Replacement for Hyundai and Kia

Universal Air HT2004C is an aluminum HVAC heater core for select Hyundai and Kia applications. It is built for direct-fit replacement service in vehicles such as the Hyundai Sonata, Hyundai Azera, Kia Optima, and Kia Cadenza.

Fits 2006-2015 Hyundai Sonata, N/A; Fits 2006-2017 Hyundai Azera, N/A; Fits 2011-2016 Kia Optima, N/A; Fits 2014-2016 Kia Cadenza, N/A.

Key Features

• Aluminum heater core construction
• HVAC core replacement for cabin heat restoration
• Application-specific fitment for Hyundai Sonata, Hyundai Azera, Kia Optima, and Kia Cadenza
• Universal Air Heater Core Aluminum product line
• Part number HT2004C for ordering and catalog lookup

Product Details

The HT2004C heater core is part of Universal Air’s Heater Core Aluminum line, focused on HVAC core service for late-model Hyundai and Kia vehicles. This heater core is used in the cabin heating circuit to transfer heat from engine coolant into the HVAC system, helping restore proper warm-air output through the dash vents. The HT2004C is a fitment-based replacement for 2006-2015 Hyundai Sonata, 2006-2017 Hyundai Azera, 2011-2016 Kia Optima, and 2014-2016 Kia Cadenza applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

• Weak or no cabin heat
• Coolant odor inside the vehicle
• Fogging caused by heater core leakage
• Uneven heat output from the HVAC system
• Cooling system leaks at the heater core assembly

Installation Notes and Tips

Verify vehicle year, make, and model before ordering. Heater core replacement often requires access through the HVAC case, so compare the original core dimensions, hose connections, and mounting points before installation. Flush the cooling system and inspect hoses, clamps, and coolant condition during service to help prevent repeat contamination. Part number HT2004C should be matched to the exact application listed above.

Quality Assurance

Universal Air supplies HVAC replacement components for vehicle-specific service applications. Confirm fitment against the listed Hyundai and Kia coverage before installation.