Universal Air HT2002C HVAC Heater Core - Rear

Rear Heater Core for Trailblazer and Envoy

Universal Air HT2002C is a rear HVAC heater core for select GM and Isuzu SUVs. It is listed for rear-position applications in the 2002-2006 Chevrolet Trailblazer, Chevrolet Trailblazer EXT, GMC Envoy, GMC Envoy XL, and 2003-2006 Isuzu Ascender.

Key Features

• Heater core aluminum construction
• Rear HVAC application
• Direct fitment for select Chevrolet, GMC, and Isuzu models
• Part number HT2002C for ordering and catalog lookup
• Fits 2002-2006 Chevrolet Trailblazer, rear
• Fits 2002-2006 GMC Envoy, rear

Product Details

The Universal Air Heater Core Aluminum line is focused on replacement HVAC core components for vehicle heating systems. HT2002C is the rear heater core application for the Chevrolet Trailblazer, Trailblazer EXT, GMC Envoy, Envoy XL, and Isuzu Ascender, covering model years 2002 through 2006 where listed. Use HT2002C when servicing rear heat output in these vehicles and when matching the rear HVAC core by fitment.

Common Issues This Part Can Address

• Weak or uneven rear cabin heat
• Coolant odor inside the vehicle
• Moisture or fogging related to a leaking heater core
• Reduced rear HVAC performance
• Heat transfer problems in the rear climate system

Installation Notes

Verify rear-position fitment before ordering and match the vehicle year, make, and model exactly to the listed applications. Inspect the HVAC system for coolant contamination, hose condition, and related leaks during replacement. Confirm the part number HT2002C against the original component and vehicle configuration before installation.

Quality Assurance

Universal Air supplies HVAC replacement components under its Heater Core Aluminum product line. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.