HomeHVAC > Motors, Core, Case and Related ComponentsUniversal Air HT2002C HVAC Heater Core - Rear
Part #: HT2002C

Universal Air HT2002C HVAC Heater Core - Rear

Heater Core Aluminum, Rear
24 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Heater Core Aluminum, Rear
Fitment: Chevrolet, GMC, and Isuzu, Trailblazer, Trailblazer EXT, Envoy, Envoy XL, and Ascender
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Reliable HVAC Heater Core for Chevrolet, GMC, and Isuzu Vehicles

The Universal Air Heater Core Aluminum HT2002C is designed to restore efficient heating performance in select Chevrolet, GMC, and Isuzu models. Engineered to meet OEM specifications, this HVAC heater core ensures consistent cabin warmth and comfort during colder months.

  • Compatible with Chevrolet Trailblazer, Trailblazer EXT, GMC Envoy, Envoy XL, Ascender, and Isuzu models
  • Durable aluminum construction for effective heat transfer and corrosion resistance
  • Part number HT2002C for precise fit and easy identification
  • Direct replacement for original heater core components
  • Designed for HVAC systems requiring reliable heating performance

About the Heater Core Aluminum Product Line

The Heater Core Aluminum line by Universal Air focuses on delivering heater cores constructed from aluminum, which offers improved heat conductivity and resistance to corrosion compared to traditional materials. This product line is tailored to provide dependable heating solutions for various vehicle HVAC systems, including the HT2002C model designed for specific Chevrolet, GMC, and Isuzu vehicles.

Product Details and Compatibility

The HT2002C heater core is engineered to fit a range of mid-2000s Chevrolet, GMC, and Isuzu SUVs, including the Chevrolet Trailblazer and Trailblazer EXT, GMC Envoy and Envoy XL, and the Isuzu Ascender. Its aluminum construction supports efficient heat exchange, helping maintain optimal cabin temperature. This part is a direct replacement, ensuring proper fitment and function within the vehicle's HVAC system.

Common Issues Addressed by the HT2002C Heater Core

  • Insufficient cabin heating during cold weather
  • Coolant leaks inside the vehicle cabin
  • Fogged or fogging windows due to heater core failure
  • Unpleasant odors from a leaking or clogged heater core
  • Overheating engine caused by heater core malfunction

Installation Notes and Tips

Installation of the HT2002C heater core requires removal of the dashboard and HVAC housing in the compatible Chevrolet, GMC, or Isuzu models. It is recommended to drain the cooling system before removal to prevent spills. Ensure all hose connections are secure and check for leaks after installation. Professional installation is advised for those unfamiliar with HVAC system repairs.

Quality Assurance and Warranty

Universal Air provides the HT2002C heater core with quality standards that meet or exceed OEM requirements. The aluminum construction offers durability and resistance to corrosion, contributing to long service life. Warranty details should be confirmed at the point of purchase, as coverage may vary.

This part fits 24 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006ChevroletTrailblazer4.2LL6RearHeater Core Aluminum
2006ChevroletTrailblazer EXTRearHeater Core Aluminum
2006GMCEnvoyRearHeater Core Aluminum
2006GMCEnvoy XLRearHeater Core Aluminum
2006IsuzuAscenderRearHeater Core Aluminum
2005ChevroletTrailblazerRearHeater Core Aluminum
2005ChevroletTrailblazer EXTRearHeater Core Aluminum
2005GMCEnvoyRearHeater Core Aluminum
2005GMCEnvoy XLRearHeater Core Aluminum
2005IsuzuAscenderRearHeater Core Aluminum
2004ChevroletTrailblazerRearHeater Core Aluminum
2004ChevroletTrailblazer EXTRearHeater Core Aluminum
2004GMCEnvoyRearHeater Core Aluminum
2004GMCEnvoy XLRearHeater Core Aluminum
2004IsuzuAscenderRearHeater Core Aluminum
2003ChevroletTrailblazerRearHeater Core Aluminum
2003ChevroletTrailblazer EXTRearHeater Core Aluminum
2003GMCEnvoyRearHeater Core Aluminum
2003GMCEnvoy XLRearHeater Core Aluminum
2003IsuzuAscenderRearHeater Core Aluminum
2002ChevroletTrailblazerRearHeater Core Aluminum
2002ChevroletTrailblazer EXTRearHeater Core Aluminum
2002GMCEnvoyRearHeater Core Aluminum
2002GMCEnvoy XLRearHeater 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.