Four Seasons 40027SK A/C Compressor Replacement Service Kit

Reliable A/C Compressor Replacement Service Kit for GM SUVs

The Four Seasons 40027SK A/C Compressor Replacement Service Kit is designed to support efficient HVAC system repairs on select Cadillac, Chevrolet, and GMC models. This kit provides essential components to restore proper air conditioning function in vehicles like the Escalade, Tahoe, and Yukon.

• Includes compressor oil (Pag oil / 46) for optimal lubrication
• Equipped with block type expansion device for precise refrigerant flow
• Sealing washer inlet and outlet expansion valve connections for leak prevention
• Comes with gasket and seals to ensure airtight assembly
• Contains dessicant bag kit, expansion valve, rear expansion valve, and compressor oil
• Compatible with R134a refrigerant systems
• Receiver drier/accumulator diameter: 1.000 inch
• Limited lifetime warranty for long-term reliability

About Four Seasons A/C Installer Kits

The Four Seasons A/C Installer Kits product line is tailored to provide comprehensive service solutions for automotive HVAC repairs. These kits include all necessary components such as expansion valves, seals, and compressor oil to facilitate a thorough replacement process. The 40027SK kit is part of this line, ensuring compatibility and quality for professional-grade A/C system maintenance on GM full-size SUVs.

Detailed Product Description

This A/C Compressor Replacement Service Kit (part number 40027SK) is engineered to meet the specific needs of Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon models equipped with R134a refrigerant systems. The included Pag oil (46 viscosity) ensures proper lubrication of the compressor, while the block type expansion device regulates refrigerant flow efficiently. Sealing washers on both the inlet and outlet of the expansion valve help maintain system integrity by preventing leaks. The kit also includes gaskets and seals to support a secure and airtight installation. The receiver drier/accumulator with a 1.000 inch diameter is designed to remove moisture and contaminants, protecting the A/C system components.

Common Applications and Issues Addressed

• Replacement of worn or damaged expansion valves causing poor cooling performance
• Restoring compressor lubrication with included Pag oil to prevent premature failure
• Sealing leaks in the A/C system with new gaskets and sealing washers
• Eliminating moisture and contaminants with the dessicant bag and receiver drier
• Supporting full A/C system service on Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon

Installation Notes and Tips

When installing the Four Seasons 40027SK kit, ensure the system is properly evacuated before replacing components. Use the included Pag oil to lubricate the compressor as specified. Verify that sealing washers are correctly positioned on the expansion valve inlet and outlet to prevent leaks. Replace all gaskets and seals to maintain system integrity. Confirm the receiver drier diameter matches the vehicle specifications for proper fitment.

Quality Assurance and Warranty

Four Seasons backs the 40027SK A/C Compressor Replacement Service Kit with a limited lifetime warranty, reflecting confidence in the durability and performance of the included components. This warranty provides assurance for technicians and vehicle owners performing HVAC repairs on Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon models.