Universal Air HT400122C HVAC Heater Core - Rear

Rear Heater Core for Audi 4-Zone Climate Control

Universal Air HT400122C is a rear HVAC heater core for select Audi models equipped with 4 Zone Climate Control. It is built for the rear heating circuit in Audi Q7, A8 Quattro, Q8, and S8 applications, with aluminum construction noted for this product line.

• Rear HVAC heater core for select Audi vehicles
• Heater Core Aluminum product line
• Fits rear climate control systems with 4 Zone Climate Control
• Direct fitment for Audi Q7, A8 Quattro, Q8, and S8 applications
• Part number HT400122C for ordering and catalog lookup

Fitment Details

• Fits 2017-2020 Audi Q7, rear, with 4 Zone Climate Control; Heater Core Aluminum
• Fits 2011-2019 Audi A8 Quattro, rear, with 4 Zone Climate Control; Heater Core Aluminum
• Fits 2019 Audi Q8, rear, with 4 Zone Climate Control; Heater Core Aluminum
• Fits 2013-2018 Audi S8, rear, with 4 Zone Climate Control; Heater Core Aluminum

What This Part Helps Address

• Weak or uneven rear cabin heat
• Loss of heat output from the rear HVAC system
• Restricted coolant flow through the rear heater core
• Leak-related heater core service on the rear climate circuit
• Temperature control issues in 4-zone rear passenger areas

Installation Notes

Verify the vehicle’s rear HVAC configuration and 4 Zone Climate Control before ordering. Match HT400122C to the existing heater core layout and confirm the rear position on the vehicle. Professional HVAC service is recommended because heater core replacement typically requires access to the rear climate housing and coolant system.

Quality Assurance

Universal Air HT400122C is identified as a Heater Core Aluminum part for the specified Audi rear applications. Confirm fitment by year, model, position, and climate-control configuration before installation.