Four Seasons 58279 A/C Compressor

Reliable A/C Compressor for Buick, Oldsmobile, and Pontiac Models

The Four Seasons New Compressor 58279 is designed to restore efficient air conditioning performance in select GM vehicles. Engineered for compatibility with Buick Cutlass, Oldsmobile Cutlass Supreme, Pontiac Grand Prix, and Regal models, this A/C compressor meets the specific requirements of R134a refrigerant systems.

• Compatible with R134a refrigerant and Pag 150 oil
• Includes clutch and high-pressure switch for complete functionality
• Features a 6-groove serpentine pulley with a 5-inch diameter
• Ear mount design with precise mounting distance of 29.21 mm
• Oil-filled and equipped with sealing washer discharge and suction ports
• 12-volt coil with pin terminal type and coil clock position at 2 o'clock

Four Seasons New Compressor Product Line Overview

The Four Seasons New Compressor line offers brand-new, direct replacement compressors designed to meet original equipment specifications. This product line focuses on delivering reliable performance and durability for HVAC systems in various vehicle makes and models. The New Compressor 58279 is part of this line, providing a complete assembly including the clutch and pressure switch to simplify installation and ensure system compatibility.

Detailed Product Description and Specifications

This Four Seasons A/C compressor is a V5 type unit specifically engineered for GM vehicles using R134a refrigerant. It comes pre-filled with compatible Pag 150 oil to maintain proper lubrication and system efficiency. The compressor includes a high-pressure switch and a clutch assembly with a maximum diameter of 5 inches, designed to engage smoothly with the serpentine belt system. The pulley features six grooves and a 5-inch diameter, matching OEM specifications for reliable belt alignment and tension. The ear mount style and precise mounting distance of 29.21 mm ensure a secure fit in the engine bay. Both the discharge and suction ports utilize sealing washers for leak prevention, and the unit includes two O-rings (red and green sealing washers) for proper sealing during installation.

Common Applications and Issues Addressed

• Restores A/C cooling performance in Buick Cutlass and Cutlass Supreme models
• Replaces faulty compressors causing insufficient refrigerant compression in Pontiac Grand Prix
• Solves clutch engagement failures in Oldsmobile Regal air conditioning systems
• Addresses leaks or pressure switch malfunctions affecting system operation
• Eliminates noise or pulley wear issues related to original compressor units

Installation Notes and Tips

• Ensure system is evacuated and flushed before installing the new compressor
• Verify compatibility with R134a refrigerant and use Pag 150 oil as specified
• Check clutch alignment and pulley groove engagement during installation
• Replace O-rings with the included sealing washers to prevent leaks
• Note that mounting hardware is not included and may need to be reused or sourced separately

Quality Assurance and Warranty Information

The Four Seasons New Compressor 58279 is a new, direct replacement part manufactured to meet or exceed OEM standards. It includes a fully assembled clutch and pressure switch to ensure proper operation. While mounting hardware is not included, the compressor is oil-filled and factory tested for performance. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.