Universal Air HT400008C HVAC Heater Core

Heater Core for Select GM Applications

Universal Air HT400008C is a heater core aluminum replacement for select Buick, Chevrolet, and GMC HVAC systems. It is built for direct-fit service on listed applications, including Buick Envision, Chevrolet Equinox, and GMC Terrain models.

Key Features

• Heater core aluminum construction
• Fits 2016-2020 Buick Envision, N/A
• Fits 2020 Chevrolet Equinox, N/A
• Fits 2018-2020 GMC Terrain, N/A, without Auxiliary Heater
• Fits 2018-2019 Chevrolet Equinox, N/A, Main Unit HVAC Heater Core
• Part number HT400008C for application matching

Product Details

This Universal Air heater core is intended for HVAC repair on the listed vehicles where the original core has failed or no longer transfers heat properly. The aluminum core construction supports efficient heat exchange within the heater housing, and the fitment data identifies exact coverage for Buick Envision, Chevrolet Equinox, and GMC Terrain applications. Use HT400008C when replacing the heater core in the specified GM HVAC configurations.

Common Problems It Can Address

• Weak or inconsistent cabin heat
• Coolant odor inside the vehicle
• Fogging from a leaking heater core
• Restricted heat output from a clogged core
• HVAC performance loss in the heater circuit

Installation Notes

Verify the vehicle year, make, model, and HVAC configuration before installation. This part fits 2018-2020 GMC Terrain, N/A, without Auxiliary Heater, and 2018-2019 Chevrolet Equinox, N/A, Main Unit HVAC Heater Core, so configuration matching is important. Inspect hoses, seals, and coolant condition during service, and confirm the replacement core is seated correctly in the HVAC case. Part number HT400008C should be matched to the vehicle application before removal of the original unit.

Quality Assurance

Universal Air HT400008C is a heater core aluminum replacement identified for the listed GM applications and built for HVAC service use. Confirm fitment against the vehicle’s original equipment configuration before installation.