HomeHVAC > Motors, Core, Case and Related ComponentsUniversal Air HT399346C HVAC Heater Core
Part #: HT399346C

Universal Air HT399346C HVAC Heater Core

Heater Core Aluminum
28 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Heater Core Aluminum
Fitment: Honda and Acura, Accord and TSX
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable HVAC Heater Core Replacement for Acura and Honda

The Universal Air Heater Core Aluminum HT399346C is designed specifically for Acura and Honda vehicles, including the Accord and TSX models. This heater core ensures efficient heating performance and helps maintain a comfortable cabin temperature during colder months.

  • Compatible with Acura Accord and Honda TSX models
  • Part number HT399346C for precise identification
  • Constructed from durable aluminum for enhanced heat transfer
  • Direct replacement for HVAC heater core components
  • Designed to integrate seamlessly with existing HVAC systems

About the Heater Core Aluminum Product Line

The Heater Core Aluminum line by Universal Air focuses on delivering heater cores made from aluminum, a material known for its excellent thermal conductivity and corrosion resistance. This product line is engineered to provide reliable heating performance and durability, making it suitable for HVAC systems in Acura and Honda vehicles. The HT399346C model benefits from these material advantages, ensuring consistent heat distribution and long service life.

Product Description and Application

The HT399346C HVAC heater core is a critical component in the heating and ventilation system of Acura Accord and Honda TSX vehicles. It functions by transferring heat from the engine coolant to the air blown into the cabin, providing warmth during cold weather. This heater core is manufactured to meet OEM specifications, ensuring proper fit and function within the HVAC assembly. Its aluminum construction aids in efficient heat exchange and resistance to corrosion, which contributes to the overall reliability of the vehicle’s heating system.

Common Issues Addressed by This Heater Core

  • Insufficient cabin heating during cold weather
  • Coolant leaks inside the vehicle’s HVAC system
  • Fogging or moisture buildup on interior windows
  • Unusual odors caused by leaking heater core fluid
  • Overheating or engine coolant loss related to heater core failure

Installation Notes and Tips

  • Ensure compatibility with Acura Accord and Honda TSX models before installation
  • Drain the cooling system prior to removal of the old heater core
  • Handle the aluminum core carefully to avoid damage to fins and tubes
  • Inspect and replace any worn seals or hoses during installation
  • Refill and bleed the cooling system to remove air pockets after installation

Quality Assurance and Warranty

The Universal Air Heater Core Aluminum HT399346C is manufactured to meet industry standards for durability and performance. While specific warranty details may vary, Universal Air products typically come with a limited warranty covering defects in materials and workmanship. This ensures confidence in the product’s reliability when installed in compatible Acura Accord and Honda TSX vehicles.

This part fits 28 vehicles. Search below:

YearMakeModelSubmodel# DoorsLitersCylindersFuel TypePositionNotes
2010HondaAccordLX4 Door2.4LL4N/AHeater Core Aluminum
2009HondaAccordLX2.4LL4N/AHeater Core Aluminum
2008AcuraTSXN/AHeater Core Aluminum
2008HondaAccordLX2.4LL4N/AHeater Core Aluminum
2007AcuraTSXN/AHeater Core Aluminum
2007HondaAccordSpecial Edition4 DoorGASN/AHeater Core Aluminum
2007HondaAccordValue Package4 DoorGASN/AHeater Core Aluminum
2007HondaAccordLX4 DoorGASN/AHeater Core Aluminum
2007HondaAccordHybrid4 DoorELECTRIC/GASN/AHeater Core Aluminum
2006AcuraTSXN/AHeater Core Aluminum
2006HondaAccordEX4 Door3.0LV6GASN/AHeater Core Aluminum
2006HondaAccordEX4 Door2.4LL4GASN/AHeater Core Aluminum
2006HondaAccordLX Special Edition4 Door2.4LL4GASN/AHeater Core Aluminum
2006HondaAccordLX4 Door2.4LL4GASN/AHeater Core Aluminum
2006HondaAccordHybrid4 Door3.0LV6ELECTRIC/GASN/AHeater Core Aluminum
2006HondaAccordValue Package4 Door2.4LL4GASN/AHeater Core Aluminum
2005AcuraTSXN/AHeater Core Aluminum
2005HondaAccordLX4 DoorGASN/AHeater Core Aluminum
2005HondaAccordEX4 DoorGASN/AHeater Core Aluminum
2005HondaAccordDX4 DoorGASN/AHeater Core Aluminum
2005HondaAccordHybrid4 DoorELECTRIC/GASN/AHeater Core Aluminum
2004AcuraTSXN/AHeater Core Aluminum
2004HondaAccordLX4 DoorN/AHeater Core Aluminum
2004HondaAccordEX4 DoorN/AHeater Core Aluminum
2004HondaAccordDX4 DoorN/AHeater Core Aluminum
2003HondaAccordLX4 DoorN/AHeater Core Aluminum
2003HondaAccordEX4 DoorN/AHeater Core Aluminum
2003HondaAccordDX4 DoorN/AHeater Core Aluminum

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.