Universal Air HT2091C HVAC Heater Core

Heater Core for Audi HVAC Repair

Universal Air HT2091C is an aluminum HVAC heater core for select Audi applications. It is built for direct-fit replacement use in the heating system and is listed for multiple Audi A8 Quattro, Allroad Quattro, A6, A6 Quattro, RS6, S6, and S8 model years.

Key Features

• Aluminum heater core construction
• HVAC heater core replacement for Audi heating systems
• Fits 1999-2005 Audi A6 and A6 Quattro applications
• Fits 2000-2005 Audi A8 Quattro applications
• Fits 2001-2005 Audi Allroad Quattro applications
• Part number HT2091C for ordering and fitment reference

Detailed Description

Universal Air Heater Core Aluminum, part number HT2091C, is a replacement HVAC heater core for Audi vehicles that use this application-specific core design. This heater core is listed for 1999-2004 Audi A6 and A6 Quattro, 2000-2005 Audi A8 Quattro, 2001-2005 Audi Allroad Quattro, 2003-2004 Audi RS6, 2002-2003 Audi S6, and 2001-2003 Audi S8. If you are searching for an Audi A6 heater core aluminum replacement or an Audi A8 Quattro HVAC heater core, HT2091C is the referenced part number.

What It Helps Address

• Weak or uneven cabin heat
• Coolant odor inside the vehicle
• Moisture or fogging related to heater core leakage
• Restricted heater core flow affecting defrost performance
• HVAC heating system service on Audi A6, A6 Quattro, and A8 Quattro models

Installation Notes and Tips

Verify the vehicle year, model, and HVAC configuration against the listed fitment before installation. Heater core replacement typically requires access to the HVAC case, so confirm all cooling system connections are clean and properly sealed during reassembly. Use HT2091C only on the Audi applications shown in the fitment list.

Quality Assurance

Universal Air HT2091C is cataloged as an aluminum heater core for the specified Audi fitments. Confirm part number HT2091C and vehicle application before purchase to ensure the correct HVAC heater core is selected.