Four Seasons 4579R A/C Compressor Kit - Front and Rear

Four Seasons PAC-Kit w/ Reman Compressor

The Four Seasons 4579R is an A/C compressor kit for select full-size GM SUVs with rear air conditioning. This PAC-Kit w/ Reman Compressor is built for 2007-2009 Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon applications with the 10S20F compressor setup.

Key Features

• Four Seasons PAC-Kit w/ Reman Compressor for HVAC A/C compressor replacement
• Fits front and rear HVAC systems on select 2007-2009 Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon models
• Application-specific kit for vehicles using a 10S20F compressor
• Includes components referenced for the compressor service package: accumulator, orifice, expansion valve, flush, and oil references
• Part number 4579R for catalog and fitment lookup

Detailed Description

Four Seasons 4579R is a PAC-Kit w/ Reman Compressor for GM SUVs equipped with rear A/C and the 10S20F compressor configuration. It is listed for 2007-2009 Cadillac Escalade, 2007-2009 Chevrolet Tahoe, and 2007-2009 GMC Yukon, making it a direct fitment match for owners searching for a reman A/C compressor kit for these vehicles. The Four Seasons brand line identifies this as a packaged compressor service solution rather than a standalone compressor, and the part number 4579R helps confirm the correct application during ordering and service lookup.

Common Problems This Part Addresses

• Loss of cabin cooling from a worn or failed A/C compressor
• Rear A/C performance issues on full-size SUV HVAC systems
• Noisy compressor operation tied to internal wear
• Reduced refrigerant circulation in the air conditioning system
• Service replacement needs on 2007-2009 Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon models

Installation Notes and Tips

Verify the vehicle uses the 10S20F compressor and rear A/C before ordering. Match the original system layout and confirm the part number 4579R against the vehicle identification and existing compressor configuration. Proper evacuation, flushing, and refrigerant service procedures are important when replacing A/C compressor components on Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon applications.

Quality Assurance

Four Seasons is a recognized HVAC parts brand with cataloged OE-style service coverage for air conditioning repair applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.