Four Seasons 4578R A/C Compressor Kit - Front and Rear

Four Seasons PAC-Kit w/ Reman Compressor 4578R

Four Seasons 4578R is a PAC-Kit with a remanufactured A/C compressor for front and rear HVAC systems on select GM full-size SUVs. It is built for vehicles equipped with the 10S20F compressor and the listed related A/C service components.

Key Features

• Four Seasons PAC-Kit w/ Reman Compressor for A/C compressor replacement
• Remanufactured compressor application for front and rear HVAC systems
• For vehicles with 10S20F compressor configuration
• Fits Cadillac Escalade ESV, Chevrolet Suburban 1500, Chevrolet Suburban 2500, GMC Yukon XL 1500, and GMC Yukon XL 2500
• Part number 4578R for direct catalog lookup

Fitment Details

• Fits 2007-2009 Cadillac Escalade ESV, Front and Rear, with 10S20F compressor and rear A/C.
• Fits 2008-2009 Chevrolet Suburban 1500, Front and Rear, with 10S20F compressor and rear A/C.
• Fits 2008-2009 Chevrolet Suburban 2500, Front and Rear, with 10S20F compressor and rear A/C.
• Fits 2008-2009 GMC Yukon XL 1500, Front and Rear, with 10S20F compressor and rear A/C.
• Fits 2008-2009 GMC Yukon XL 2500, Front and Rear, with 10S20F compressor and rear A/C.

What This Part Is Used For

• Restoring A/C compressor operation after compressor wear or failure
• Addressing loss of cabin cooling in front and rear HVAC systems
• Replacing a compressor on GM SUVs with the 10S20F setup
• Supporting repair of noise, seizure, or poor refrigerant circulation at the compressor

Installation Notes and Tips

Verify the vehicle uses the 10S20F compressor and rear A/C configuration before ordering. Match the part number 4578R to the vehicle identification and service information, and inspect the full A/C system for contamination or related component wear during repair.

Quality Assurance

Four Seasons supplies HVAC service parts for automotive A/C repair applications. This PAC-Kit is cataloged for the listed GM SUV fitments and remanufactured compressor configuration.