Four Seasons 6421R A/C Compressor Kit

Reliable A/C Compressor Kit for Classic GM Vehicles

The Four Seasons PAC-Kit w/ Reman Compressor 6421R offers a dependable solution for restoring air conditioning performance in select Buick, Cadillac, Oldsmobile, and Pontiac models. Designed to meet the specific needs of vehicles like the Bonneville, Eldorado, and Grand Prix, this kit ensures proper fit and function.

• Complete A/C compressor kit with remanufactured compressor
• Compatible with Buick Bonneville, LeSabre, Skylark, and more
• Fits Cadillac Eldorado and other classic GM models
• Part number 6421R for precise identification
• Designed for models including Oldsmobile Cutlass Supreme and Pontiac GTO

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

The PAC-Kit w/ Reman Compressor product line from Four Seasons provides a comprehensive solution by combining a remanufactured compressor with necessary components to facilitate A/C system repairs. This approach helps maintain system integrity and performance while offering a cost-effective alternative to new compressors. The 6421R kit is tailored for specific GM vehicles, ensuring compatibility and reliable operation.

Product Details and Compatibility

This A/C compressor kit is engineered for use in a range of Buick, Cadillac, Oldsmobile, and Pontiac vehicles, including models such as the Pontiac LeMans, Oldsmobile Tempest, and Cadillac Catalina. The remanufactured compressor included in the 6421R kit meets original equipment specifications, providing consistent cooling performance. Its design supports proper clutch engagement and system pressure management, essential for effective air conditioning operation in these classic cars.

Common Applications and Problem Resolution

• Restores cooling function in Buick Skylark and LeSabre A/C systems
• Replaces failing compressors in Cadillac Eldorado and Pontiac Grand Prix
• Addresses compressor clutch engagement issues in Oldsmobile Cutlass models
• Solves refrigerant leakage and pressure loss in Pontiac GTO and LeMans
• Improves overall A/C system reliability in Buick Bonneville and Catalina

Installation Notes and Tips

When installing the Four Seasons 6421R PAC-Kit w/ Reman Compressor, ensure the A/C system is properly evacuated and recharged according to manufacturer specifications. Verify compatibility with the vehicle’s model year and engine configuration before installation. Proper torque settings and alignment of the compressor clutch are critical for optimal performance. It is recommended to inspect related components such as hoses and condensers during replacement to prevent future issues.

Quality Assurance and Warranty

Four Seasons remanufactured compressors undergo rigorous testing to meet industry standards for durability and performance. The PAC-Kit w/ Reman Compressor 6421R is backed by Four Seasons’ quality assurance processes, providing confidence in its reliability. Warranty coverage details should be confirmed with the product documentation or supplier to ensure protection against defects.