Four Seasons 10721SK A/C Compressor Replacement Service Kit

Reliable A/C Compressor Replacement Service Kit for Chevrolet and GMC Trucks

The Four Seasons 10721SK A/C Compressor Replacement Service Kit is designed to support efficient HVAC system repairs on Chevrolet and GMC heavy-duty trucks. This kit provides essential components to restore proper air conditioning function in select Sierra and Silverado models.

• Includes accumulator, orifice tube kit, compressor oil (Pag oil / 46), and o-ring/gasket pack
• Compressor oil included for optimal lubrication and system performance
• Receiver drier/accumulator with 3.5-inch diameter and 9.5-inch length
• Equipped with P-nut fittings on both inlet and outlet for secure connections
• Compatible with R134a refrigerant systems
• Limited lifetime warranty for long-term reliability

About Four Seasons A/C Installer Kits Product Line

The Four Seasons A/C Installer Kits product line offers comprehensive service kits tailored for HVAC system repairs and maintenance. These kits include all necessary components such as accumulators, orifice tubes, compressor oil, and seals to facilitate a complete and efficient A/C compressor replacement. The 10721SK kit is part of this line, ensuring compatibility and quality for professional-grade repairs on heavy-duty Chevrolet and GMC trucks.

Detailed Product Description

The 10721SK A/C Compressor Replacement Service Kit from Four Seasons is engineered to meet the specific needs of Chevrolet Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models, including their Classic and HD variants. This kit includes a receiver drier/accumulator with a 3.5-inch diameter and 9.5-inch length, designed with P-nut fittings on both inlet and outlet to ensure secure and leak-free connections. The included Pag oil type 46 compressor oil supports proper lubrication of the compressor, enhancing system longevity and performance. Additionally, the kit contains an orifice tube and a comprehensive o-ring and gasket pack to replace worn seals and prevent refrigerant leaks. Compatible with R134a refrigerant, this kit supports the maintenance and restoration of your vehicle’s air conditioning system.

Common Applications and Issues Addressed

• Restores proper A/C compressor function in Chevrolet Sierra 2500 HD and Silverado 3500 models
• Replaces worn or damaged accumulator and orifice tube components
• Prevents refrigerant leaks with new o-rings and gaskets
• Ensures correct compressor lubrication with included Pag oil
• Supports R134a refrigerant system maintenance and repair

Installation Notes and Tips

When installing the Four Seasons 10721SK kit, ensure the system is fully evacuated and flushed before replacing components to avoid contamination. Use the included Pag oil to lubricate the compressor according to manufacturer specifications. Verify that all P-nut fittings on the receiver drier/accumulator are securely tightened to prevent leaks. Replace all seals and gaskets included in the kit to maintain system integrity. Proper handling of refrigerant R134a is essential for safety and compliance.

Quality Assurance and Warranty

Four Seasons backs the 10721SK A/C Compressor Replacement Service Kit with a limited lifetime warranty, reflecting confidence in the durability and performance of their components. This warranty provides assurance for professional technicians and vehicle owners seeking reliable HVAC repair parts for Chevrolet and GMC heavy-duty trucks.