Four Seasons 58271 A/C Compressor

Overview of Four Seasons New Compressor 58271

The Four Seasons New Compressor 58271 is designed for reliable air conditioning performance in select GM vehicles. Engineered to work with R134a refrigerant, this A/C compressor supports efficient cooling for models like the Chevrolet Cavalier and Pontiac Grand Am.

• Compatible with R134a refrigerant and PAG 150 oil
• Includes clutch and oil for immediate installation
• Pressure switch type with high-pressure switch included
• V5 compressor type with 12V coil voltage
• Ear mount style with spade terminal connections
• Single groove V-belt pulley with 5.125 inch diameter
• O-ring and sealing washer discharge and suction ports

Four Seasons New Compressor Product Line Details

The Four Seasons New Compressor line offers brand-new, direct replacement compressors designed to meet original equipment specifications. This ensures compatibility and performance for vehicles requiring a V5 compressor type, such as many GM models. The New Compressor series includes essential components like the clutch and oil, simplifying installation and reducing downtime.

Technical Description and Features

This Four Seasons A/C compressor (part number 58271) is engineered for GM vehicles including Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models such as the Calais, Celebrity, Cutlass Ciera, and Skylark. It operates with R134a refrigerant and uses PAG 150 oil, which is included. The compressor features a pressure switch and a high-pressure switch for system protection. The coil is positioned at the 2 o'clock clock position and runs on 12 volts. The pulley is designed for a single V-belt with a 0.5 inch (12.7 mm) width and a diameter of 5.125 inches (130.048 mm). Mounting is via ear mounts with a 45.72 mm mount distance. Both suction and discharge ports use O-ring and sealing washer types for secure connections. The clutch is included and has a maximum diameter of 5.125 inches, matching the pulley lip and ridge diameters.

Common Applications and Problem Solving

• Restores A/C cooling in GM vehicles with failing or seized compressors
• Replaces compressors with worn clutches or pulley issues
• Addresses refrigerant leaks due to damaged O-rings or seals
• Solves pressure switch failures affecting compressor engagement
• Upgrades older compressors to support R134a refrigerant systems

Installation Notes and Tips

• Ensure system is evacuated and flushed before installation
• Use compatible PAG 150 oil as specified for lubrication
• Verify clutch alignment and pulley groove matches belt type
• Replace O-rings and sealing washers to prevent leaks
• Check electrical connections for proper spade terminal fit

Quality Assurance and Warranty

The Four Seasons New Compressor 58271 is a new, direct replacement part manufactured to meet or exceed OEM standards. It comes oil-filled and includes the clutch and pressure switch for a complete solution. While mounting hardware is not included, the compressor is designed for straightforward installation on compatible GM vehicles. Warranty coverage details should be confirmed with the parts provider or manufacturer.