Four Seasons 58987 A/C Compressor

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

The Four Seasons New Compressor 58987 is designed to restore efficient air conditioning performance in select GM vehicles. Engineered for compatibility with R134a refrigerant, this A/C compressor meets the specific needs of models like the Buick Regal, Chevrolet Impala, and Pontiac Grand Prix.

• Compatible with R134a refrigerant and Pag 150 oil
• Includes oil pre-filled for immediate installation
• 6-groove serpentine pulley with 4.703-inch diameter
• Pin-type electrical terminal and 12-volt coil voltage
• Ear mount design with precise clutch and mounting dimensions
• Includes clutch assembly and sealing washers for suction and discharge ports
• Designed for V5 compressor type applications

Four Seasons New Compressor Product Line Overview

The Four Seasons New Compressor line offers brand-new, factory-quality A/C compressors designed to meet or exceed original equipment specifications. The New Compressor 58987 provides a direct replacement solution with included clutch and oil, reducing installation time and ensuring reliable operation in compatible GM vehicles. This product line focuses on delivering components that maintain system integrity and performance without the need for remanufacturing.

Detailed Product Description and Specifications

This Four Seasons A/C compressor (part number 58987) is engineered for use with R134a refrigerant and compatible with Pag 150 refrigerant oil, which is included pre-filled to facilitate installation. The compressor features a 6-groove serpentine pulley with a diameter of approximately 4.703 inches (119.38 mm) and a belt width of 0.875 inches (22.225 mm). The clutch assembly is included, with a maximum diameter of 4.703 inches and a coil voltage of 12 volts. The compressor uses a pin-type terminal and has an ear mount design with a mounting distance of 29.21 mm. Both suction and discharge ports utilize sealing washers, and the package includes two O-rings (part number 24354) for proper sealing. This V5 compressor type is compatible with various GM models, including the Chevrolet Lumina, Oldsmobile Intrigue, and Pontiac Monte Carlo.

Common Applications and Issues Addressed

• Restores A/C cooling performance in Buick Regal and Chevrolet Impala
• Replaces worn or failed compressors causing insufficient refrigerant compression
• Solves clutch engagement problems in Pontiac Grand Prix and Oldsmobile Intrigue
• Addresses pulley or bearing noise related to compressor wear
• Eliminates refrigerant leaks at compressor ports with included sealing washers and O-rings

Installation Notes and Tips

• Ensure system is evacuated and flushed before installation to prevent contamination
• Verify compatibility with vehicle refrigerant type R134a and use Pag 150 oil as specified
• Check belt alignment and tension on the 6-groove serpentine pulley
• Use proper torque specifications for ear mount hardware (mounting hardware not included)
• Inspect electrical connections for secure pin-type terminal engagement

Quality Assurance and Warranty Information

The Four Seasons New Compressor 58987 is a new, factory-quality replacement part designed to meet original equipment standards. It includes pre-filled oil and clutch assembly to ensure reliable operation. While mounting hardware is not included, the compressor is manufactured to precise specifications for fit and function. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.