Four Seasons 168399 A/C Compressor

Overview of Four Seasons New Compressor 168399

The Four Seasons New Compressor 168399 is designed for reliable air conditioning performance in select Buick, Cadillac, Chevrolet, and GMC vehicles. This A/C compressor supports refrigerants R-134a and R-1234yf, making it suitable for modern automotive HVAC systems.

• Compatible with Buick Acadia, Cadillac XT4, Chevrolet Blazer, Malibu, and Regal models
• Supports refrigerant types R-134a and R-1234yf
• Includes A/C clutch with a maximum diameter of 4.31 inches
• Features a 5-groove serpentine pulley with a diameter of 109.54 mm
• 12-volt coil with 1 wire lead terminal harness
• Mounting type: 3 tangent bolts with one on rear head
• Compressor type: 7sas18a Nippondenso design
• Includes slimline washer O-rings (part numbers 24402 and 24404)

Four Seasons New Compressor Product Line Details

The Four Seasons New Compressor line offers brand-new, direct replacement compressors engineered to meet or exceed OEM specifications. The New Compressor 168399 is part of this line, providing a fresh, unused unit that includes the clutch assembly and necessary O-rings for installation. This ensures compatibility and performance for vehicles requiring a Nippondenso 7sas18a compressor type.

Technical Description and Features

This Four Seasons A/C compressor features a 5-groove serpentine pulley system designed for efficient belt engagement and durability. The clutch assembly is included, with a maximum diameter of 4.31 inches, and the coil operates at 12 volts with a single wire lead terminal harness for straightforward electrical connection. The mounting system uses three tangent bolts, including one on the rear head, ensuring secure attachment to the engine. The compressor supports both R-134a and R-1234yf refrigerants, accommodating vehicles with updated HVAC requirements. O-rings included are slimline washers, part numbers 24402 and 24404, to maintain proper sealing during installation.

Applications and Common Issues Addressed

• Replacement for failed or leaking A/C compressors in Buick Acadia and Chevrolet Blazer
• Restores proper air conditioning function in Cadillac XT4 and Regal Sportback models
• Solves clutch engagement problems due to worn or damaged clutch assemblies
• Addresses refrigerant leaks caused by compressor seal failure
• Improves cooling efficiency in Chevrolet Malibu and GMC vehicles with serpentine belt systems

Installation Notes and Tips

Installation requires removal of the old compressor and clutch assembly. Note that this unit does not include oil; proper oil type and quantity must be added according to vehicle specifications. Mounting hardware is not included, so retain or replace bolts as needed. Ensure the serpentine belt is properly aligned on the 5-groove pulley. Electrical connection uses a harness lead with a single wire coil terminal. Verify compatibility with vehicle refrigerant type (R-134a or R-1234yf) before installation.

Quality Assurance and Warranty

The Four Seasons New Compressor 168399 is a new, unused part manufactured to meet OEM standards. It includes the clutch and necessary O-rings for sealing. While mounting hardware and oil are not included, the compressor is designed for reliable operation in specified Buick, Cadillac, Chevrolet, and GMC models. Warranty coverage details should be confirmed with the distributor or installer.