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

Reliable A/C Compressor Kit for GM Trucks and SUVs

The Four Seasons PAC-Kit w/ Reman Compressor 1821R is designed to restore proper air conditioning function 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 1500 and GMC Sierra 2500 HD, ensuring compatibility and performance.

• Complete A/C compressor kit including remanufactured compressor
• Compatible with multiple GM trucks and SUVs including Silverado, Sierra, Yukon, and Escalade
• Part number 1821R for precise identification and fitment
• Designed to replace worn or faulty compressors in HVAC systems
• Supports efficient cooling and reliable operation in heavy-duty applications

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

The PAC-Kit w/ Reman Compressor product line from Four Seasons offers a comprehensive solution by combining a remanufactured compressor with all necessary components for installation. This approach simplifies repairs by providing a matched kit that addresses common compressor failures. The 1821R kit is part of this line, tailored for GM vehicles requiring a dependable replacement compressor that meets OEM specifications.

Product Description and Vehicle Compatibility

This A/C compressor kit is specifically designed for use in a range of Cadillac, Chevrolet, and GMC models, including the Chevrolet Avalanche 1500, GMC Sierra 3500 Classic, and Cadillac Escalade EXT. The kit includes a remanufactured compressor that has been tested to ensure proper function and durability. Using part number 1821R guarantees that the replacement matches the original equipment in form, fit, and function, helping maintain the HVAC system's performance in your vehicle.

Common Issues Addressed by This A/C Compressor Kit

• Loss of cooling or insufficient air conditioning performance
• Compressor clutch failure or slipping
• Unusual noises from the compressor unit
• Refrigerant leaks or compressor seal failures
• Intermittent compressor engagement or electrical faults

Installation Notes and Tips

• Ensure the vehicle is compatible by verifying make, model, and year against the fitment list
• Properly evacuate and recover refrigerant before removal of the old compressor
• Replace the receiver/drier or accumulator and expansion valve as recommended
• Use correct refrigerant oil type and quantity during installation
• Test the system for leaks and proper operation after installation

Quality Assurance and Warranty Information

Four Seasons remanufactured compressors undergo rigorous testing to meet industry standards for durability and performance. The PAC-Kit w/ Reman Compressor 1821R is backed by a limited warranty that covers defects in materials and workmanship, providing confidence in the product's reliability for your Cadillac, Chevrolet, or GMC vehicle.