Universal Air CK4420 A/C Compressor Kit

Short Compressor Replacement Kit for Rear A/C

Universal Air CK4420 is a Short Compressor Replacement Kit for vehicles equipped with rear A/C. It is built for direct service on select Chevrolet Trailblazer, Trailblazer EXT, GMC Envoy XL, and Isuzu Ascender applications, with fitment covering model years from 2003 through 2009.

This kit is organized for compressor replacement service on the listed platforms and includes the components identified for the application: CO 4910AC, EX 5612C, EX 5900C, and HA 10487C. Part number CK4420 is a fitment-specific solution for rear A/C systems that require a short compressor replacement kit.

Key Features

• Universal Air Short Compressor Replacement Kit
• Part number CK4420
• Fits rear A/C-equipped GM and Isuzu SUV applications
• Application-specific for Chevrolet Trailblazer, Trailblazer EXT, GMC Envoy XL, and Isuzu Ascender
• Notes call for condenser replacement with a new condenser
• Includes the listed application components for the kit

Vehicle Fitment

• Fits 2003-2009 Chevrolet Trailblazer, with Rear A/C.
• Fits 2003-2006 Chevrolet Trailblazer EXT, with Rear A/C.
• Fits 2003-2006 GMC Envoy XL, with Fixed Orifice; with Rear A/C.
• Fits 2003-2008 Isuzu Ascender, with Rear A/C.

Common Repair Uses

• Restores compressor function on rear A/C systems
• Addresses loss of cabin cooling performance
• Supports repair after compressor wear or internal failure
• Helps correct system issues tied to contaminated or restricted A/C components
• Provides a matched replacement path for CK4420 applications

Installation Notes

Verify the vehicle’s rear A/C configuration before ordering. For the listed applications, the notes specify that the condenser should be replaced with a new condenser during service. Confirm all system connections and component compatibility before evacuation, recharge, and final testing.

Quality Assurance

Universal Air CK4420 is cataloged as a fitment-specific A/C compressor kit for the listed vehicles and configurations. This part cross-references no additional part numbers beyond the application references shown here.