Four Seasons 1821N A/C Compressor and Component Kit - Front

Reliable A/C Compressor Kit for GM Trucks and SUVs

The Four Seasons PAC-Kit w/ New Compressor 1821N is designed to restore efficient air conditioning performance in select Cadillac, Chevrolet, and GMC vehicles. This A/C compressor kit is engineered to meet the specific needs of popular models like the Chevrolet Silverado and GMC Sierra series.

• Complete A/C compressor kit including a new compressor
• Compatible with multiple GM trucks and SUVs including Avalanche, Escalade, Sierra, Silverado, Suburban, Tahoe, and Yukon
• Part number 1821N ensures precise fitment and reliable operation
• Designed to work with factory A/C clutch systems
• Manufactured by Four Seasons, a trusted name in automotive HVAC components

About the Four Seasons PAC-Kit w/ New Compressor Line

The PAC-Kit w/ New Compressor product line from Four Seasons provides a comprehensive solution for A/C system repairs by including a brand new compressor along with necessary components. This approach simplifies installation and helps ensure system reliability by replacing worn or damaged parts with new, factory-quality components. The 1821N kit is part of this line, tailored for GM full-size trucks and SUVs.

Detailed Product Description

The Four Seasons 1821N A/C compressor kit is engineered for direct compatibility with a range of Cadillac, Chevrolet, and GMC vehicles, including the Avalanche 1500 and 2500, Escalade models, Sierra 1500 through 3500 HD variants, Silverado 1500 through 3500 HD models, Suburban 1500 and 2500, Tahoe, and Yukon series. This kit replaces the compressor and associated components to restore proper air conditioning function. It is designed to integrate seamlessly with the vehicle’s existing A/C clutch and HVAC system, ensuring consistent cooling performance and durability.

Common Applications and Issues Addressed

• Restores cooling performance in Cadillac Escalade and Chevrolet Silverado A/C systems
• Replaces failing or noisy compressors in GMC Sierra and Yukon models
• Solves issues related to compressor clutch failure or A/C system leaks
• Addresses intermittent or no cooling problems in Avalanche and Suburban vehicles
• Prevents further damage to the A/C system by installing a new compressor

Installation Notes and Tips

• Ensure the vehicle is compatible by verifying make, model, and year against the fitment list
• Properly evacuate and recharge the A/C system following compressor replacement
• Inspect and replace the receiver/drier or accumulator as needed during installation
• Check for any additional system leaks or damaged components before assembly
• Use manufacturer-recommended refrigerant and oil types for optimal performance

Quality Assurance and Warranty

Four Seasons manufactures the 1821N PAC-Kit w/ New Compressor to meet or exceed OEM standards for durability and performance. While specific warranty details should be confirmed at the point of purchase, Four Seasons typically offers coverage against defects in materials and workmanship to provide confidence in the product’s reliability.