HomeHVAC > A/C Clutch and CompressorUniversal Air CK4842 A/C Compressor Kit
Part #: CK4842

Universal Air CK4842 A/C Compressor Kit

Short Compressor Replacement Kit
18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Short Compressor Replacement Kit
Fitment: Chevrolet, GMC, and Isuzu, Ascender, Envoy XL, Trailblazer, and Trailblazer EXT
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Universal Air CK4842 Short Compressor Replacement Kit

Universal Air CK4842 is a short compressor replacement kit for select rear A/C applications that need a complete compressor-side service solution. It is built for the 2003-2006 Chevrolet Trailblazer EXT, 2003-2006 GMC Envoy XL, 2003-2006 Isuzu Ascender, and 2009 Chevrolet Trailblazer with rear A/C.

Key Features

  • Short compressor replacement kit for HVAC A/C clutch and compressor service
  • Fits rear A/C applications on select Chevrolet, GMC, and Isuzu SUVs
  • Complete kit includes CO 4911AC, EX 5612C, EX 5900C, and HA 10487C
  • Recommended for use with a new condenser during repair
  • Part number CK4842 for easy ordering and catalog matching

Application Details

Compatible with 2009 Chevrolet Trailblazer, N/A, with rear A/C; 2003-2006 Chevrolet Trailblazer EXT, N/A, with rear A/C; 2003-2006 GMC Envoy XL, N/A, with fixed orifice and rear A/C; and 2003-2006 Isuzu Ascender, N/A, with rear A/C. Universal Air CK4842 is the correct choice when servicing these vehicle-specific HVAC systems and replacing compressor-related components as a matched kit.

Common Repair Uses

  • Restoring A/C performance after compressor failure
  • Addressing poor cooling in rear A/C-equipped SUVs
  • Replacing worn compressor-side components during HVAC repair
  • Correcting contamination concerns after system damage
  • Supporting a more complete repair on Trailblazer, Trailblazer EXT, Envoy XL, and Ascender models

Installation Notes

Before installation, verify the vehicle’s rear A/C configuration and confirm the application details against the existing HVAC layout. The notes for this kit call for replacing the condenser with a new condenser, which is important when repairing a failed compressor system. Part number CK4842 should be matched to the vehicle exactly as listed for proper fitment.

Quality Assurance

Universal Air CK4842 is cataloged as a short compressor replacement kit for the listed applications and is identified by the included component references for accurate parts matching. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

This part fits 18 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2009ChevroletTrailblazerLT5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2006ChevroletTrailblazer EXT5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2006GMCEnvoy XLDenali5.3LV8N/Awith Fixed Orifice; with Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2006IsuzuAscenderLS5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2005ChevroletTrailblazer EXT5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2005GMCEnvoy XLSLE5.3LV8N/Awith Fixed Orifice; with Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2005GMCEnvoy XLDenali5.3LV8N/Awith Fixed Orifice; with Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2005GMCEnvoy XLSLT5.3LV8N/Awith Fixed Orifice; with Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2005IsuzuAscenderLS5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2005IsuzuAscenderLimited5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2005IsuzuAscenderS5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2004ChevroletTrailblazer EXT5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2004GMCEnvoy XL5.3LV8N/Awith Fixed Orifice; with Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2004IsuzuAscenderLimited5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2004IsuzuAscenderLS5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2003ChevroletTrailblazer EXT5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2003GMCEnvoy XL5.3LV8N/Awith Fixed Orifice; with Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit
2003IsuzuAscender5.3LV8N/Awith Rear A/C; Complete Kit Includes #(s) CO 4911AC,EX 5612C,EX 5900C,HA 10487C; Recommend replacing condenser with new condenser; Short Compressor Replacement Kit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.