HomeHVAC > Motors, Core, Case and Related ComponentsUniversal Air HT399417C HVAC Heater Core
Part #: HT399417C

Universal Air HT399417C HVAC Heater Core

Heater Core Aluminum
22 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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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Heater Core Aluminum
Fitment: Buick and Cadillac, Park Avenue, DeVille, and Seville
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Universal Air Heater Core Aluminum HT399417C

The Universal Air Heater Core Aluminum HT399417C is designed specifically for select Buick and Cadillac models, including the DeVille, Park Avenue, and Seville. This HVAC heater core replacement ensures efficient heating performance and reliable operation within your vehicle's climate control system.

  • Compatible with Buick DeVille, Cadillac Park Avenue, and Cadillac Seville
  • Part number HT399417C for precise identification
  • Constructed from durable aluminum for effective heat transfer
  • Direct replacement for HVAC heater core applications
  • Designed to integrate seamlessly with existing HVAC components

Product Line: Heater Core Aluminum

The Heater Core Aluminum product line by Universal Air focuses on delivering heater cores made from aluminum, a material known for its excellent thermal conductivity and corrosion resistance. This line is engineered to provide consistent heating performance and durability, making it suitable for HVAC systems in various Buick and Cadillac vehicles. The HT399417C is part of this line, offering a reliable solution for maintaining cabin comfort.

Detailed Product Description

The HT399417C heater core is an essential component of the HVAC system, responsible for transferring heat from the engine coolant to the vehicle’s interior. Manufactured with aluminum, this heater core offers efficient heat exchange and resistance to corrosion, which helps extend the service life of the part. It is designed to fit specific Buick and Cadillac models, including the DeVille, Park Avenue, and Seville, ensuring proper fitment and function. This heater core replacement supports the vehicle’s heating system by restoring warm airflow and maintaining comfortable cabin temperatures during colder conditions.

Common Issues Resolved by This Heater Core

  • Insufficient cabin heat due to clogged or leaking heater core
  • Coolant leaks inside the vehicle causing foggy windows or damp carpets
  • Overheating engine symptoms related to heater core failure
  • Unpleasant odors from coolant entering the HVAC system
  • Reduced HVAC system efficiency impacting passenger comfort

Installation Notes and Tips

  • Ensure compatibility with Buick DeVille, Cadillac Park Avenue, or Seville before installation
  • Drain the cooling system prior to heater core removal to prevent spills
  • Handle the aluminum core carefully to avoid damage to fins and tubes
  • Inspect and replace any worn hoses or seals during installation
  • Bleed the cooling system after installation to remove air pockets

Quality Assurance and Warranty

The Universal Air Heater Core Aluminum HT399417C is manufactured to meet industry standards for durability and performance. While specific warranty details are not provided here, Universal Air products typically come with a limited warranty covering defects in materials and workmanship. It is recommended to verify warranty terms with the supplier or manufacturer at the time of purchase.

This part fits 22 vehicles. Search below:

YearMakeModelPositionNotes
2005BuickPark AvenueN/AHeater Core Aluminum
2005CadillacDeVilleN/AHeater Core Aluminum
2004BuickPark AvenueN/AHeater Core Aluminum
2004CadillacDeVilleN/AHeater Core Aluminum
2004CadillacSevilleN/AHeater Core Aluminum
2003BuickPark AvenueN/AHeater Core Aluminum
2003CadillacDeVilleN/AHeater Core Aluminum
2003CadillacSevilleN/AHeater Core Aluminum
2002BuickPark AvenueN/AHeater Core Aluminum
2002CadillacDeVilleN/AHeater Core Aluminum
2002CadillacSevilleN/AHeater Core Aluminum
2001BuickPark AvenueN/AHeater Core Aluminum
2001CadillacDeVilleN/AHeater Core Aluminum
2001CadillacSevilleN/AHeater Core Aluminum
2000BuickPark AvenueN/AHeater Core Aluminum
2000CadillacDeVilleN/AHeater Core Aluminum
2000CadillacSevilleN/AHeater Core Aluminum
1999BuickPark AvenueN/AHeater Core Aluminum
1999CadillacSevilleN/AHeater Core Aluminum
1998BuickPark AvenueN/AHeater Core Aluminum
1998CadillacSevilleN/AHeater Core Aluminum
1997BuickPark AvenueN/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.