HomeHVAC > Motors, Core, Case and Related ComponentsUniversal Air HT399919C HVAC Heater Core
Part #: HT399919C

Universal Air HT399919C HVAC Heater Core

Heater Core Aluminum
19 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: Acura and Honda, RSX and Civic
Easy Returns — Return within 60 days for a full refund
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Reliable HVAC Heater Core Replacement for Acura and Honda

The Universal Air Heater Core Aluminum HT399919C is designed to restore efficient heating performance in select Acura and Honda vehicles. Engineered to meet OEM specifications, this HVAC heater core ensures consistent cabin warmth and comfort during colder months.

  • Compatible with Acura Civic and Honda Civic models, as well as Honda RSX
  • Durable aluminum construction for effective heat transfer and corrosion resistance
  • Direct replacement part number HT399919C for easy identification and fitment
  • Designed for HVAC systems requiring heater core replacement
  • Precision engineered to maintain proper coolant flow and heating efficiency

About the Heater Core Aluminum Product Line

The Heater Core Aluminum line by Universal Air focuses on providing high-quality heater cores constructed from aluminum material. This choice of material offers improved heat conductivity and resistance to corrosion compared to traditional copper cores. The HT399919C model benefits from this design approach, delivering reliable heating performance and durability for Acura and Honda vehicles requiring HVAC heater core replacements.

Product Details and Compatibility

This HVAC heater core is specifically compatible with Acura and Honda vehicles, including the Civic and RSX models. The part number HT399919C corresponds to a direct-fit replacement, ensuring proper installation without modifications. The aluminum construction supports efficient heat exchange, helping maintain optimal cabin temperature and HVAC system function.

Common Issues Addressed by This Heater Core

  • Insufficient cabin heat during cold weather
  • Coolant leaks inside the vehicle cabin
  • Reduced HVAC system efficiency due to clogged or damaged heater core
  • Unpleasant odors caused by coolant contamination
  • Fogging or moisture buildup on interior windows

Installation Notes and Tips

Installation of the HT399919C heater core should be performed by a qualified technician familiar with Acura and Honda HVAC systems. It is important to properly drain the cooling system before removal and ensure all connections are secure to prevent leaks. Flushing the cooling system prior to installation is recommended to remove debris and contaminants that could affect heater core performance.

Quality Assurance and Warranty

Universal Air provides this heater core with manufacturing quality controls to meet industry standards. While specific warranty details are not provided here, Universal Air products typically come with a limited warranty against defects in materials and workmanship. Verify warranty terms with the supplier or manufacturer documentation.

This part fits 19 vehicles. Search below:

YearMakeModelSubmodel# DoorsLitersCylindersFuel TypePositionNotes
2006AcuraRSXN/AHeater Core Aluminum
2005AcuraRSXN/AHeater Core Aluminum
2005HondaCivicSi4 Door1.7LL4GASN/AHeater Core Aluminum
2005HondaCivicSi2 Door1.7LL4GASN/AHeater Core Aluminum
2005HondaCivicSi2 Door2.0LL4GASN/AHeater Core Aluminum
2004AcuraRSXN/AHeater Core Aluminum
2004HondaCivicSiR2 Door2.0LL4GASN/AHeater Core Aluminum
2004HondaCivicSi4 Door1.7LL4GASN/AHeater Core Aluminum
2004HondaCivicSi2 Door2.0LL4GASN/AHeater Core Aluminum
2004HondaCivicSi2 Door1.7LL4GASN/AHeater Core Aluminum
2003AcuraRSXN/AHeater Core Aluminum
2003HondaCivicSi2 Door2.0LL4GASN/AHeater Core Aluminum
2003HondaCivicSi4 Door1.7LL4GASN/AHeater Core Aluminum
2003HondaCivicSi2 Door1.7LL4GASN/AHeater Core Aluminum
2003HondaCivicSiR2 Door2.0LL4GASN/AHeater Core Aluminum
2002AcuraRSXN/AHeater Core Aluminum
2002HondaCivicSi2.0LL4GASN/AHeater Core Aluminum
2002HondaCivicSi1.7LL4GASN/AHeater Core Aluminum
2002HondaCivicSiR2.0LL4GASN/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.