Universal Air HT400012C HVAC Heater Core

Heater Core Overview

The Universal Air HT400012C heater core is a direct-fit HVAC replacement for select Kia Optima applications. It is listed for non-hybrid and aluminum heater core configurations, giving buyers a focused option when restoring cabin heat performance.

Key Features

• Heater core for HVAC system repair and replacement
• Aluminum construction for efficient heat transfer
• Application-specific fitment for select Kia Optima models
• Part number HT400012C for easy identification
• Fits 2016-2020 Kia Optima applications listed below

Detailed Description

Universal Air HT400012C is an HVAC heater core built for select Kia Optima vehicles, including 2016-2017 and 2019 models without hybrid equipment and 2018-2020 applications listed with aluminum heater core fitment. This part number, HT400012C, is intended for buyers replacing a heater core that no longer transfers heat properly through the cabin HVAC system. The aluminum design supports efficient thermal exchange in a compact HVAC package.

Compatible With Kia Optima fitment shown here, this heater core is a practical replacement when the original unit is leaking, restricted, or no longer delivering consistent cabin heat. Universal Air HT400012C is identified by the same part number throughout the catalog, which helps simplify matching during service work.

What It Is Used For

• Restoring cabin heat output
• Replacing a leaking heater core
• Addressing restricted coolant flow through the HVAC core
• Correcting uneven or weak heater performance
• Servicing a damaged HVAC heat exchanger

Installation Notes and Tips

Verify the vehicle’s model year and hybrid status before ordering. Fitment is listed for 2016-2017 Kia Optima without hybrid, 2018 Kia Optima, 2019 Kia Optima without hybrid, and 2020 Kia Optima. Confirm the existing heater core configuration matches the aluminum application noted for HT400012C.

Quality Assurance

Universal Air identifies this part with a specific catalog number, HT400012C, to support accurate replacement selection for the listed Kia Optima applications.