Four Seasons 58979 A/C Compressor

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

The Four Seasons New Compressor 58979 is designed to restore efficient air conditioning performance in select GM vehicles. Engineered for compatibility with Chevrolet Lumina APV, Oldsmobile Silhouette, and Pontiac Trans Sport models, this A/C compressor ensures proper refrigerant flow and system pressure.

• Compatible with R134a refrigerant and Pag 150 oil
• Includes oil and high-pressure pressure switch for optimal operation
• Features a 6-groove serpentine pulley with a 12V coil voltage
• V5 compressor type with ear mount installation
• Includes clutch assembly with a maximum diameter of 4.703 inches

Four Seasons New Compressor Product Line Overview

The New Compressor line from Four Seasons offers brand-new, direct replacement A/C 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 58979 compressor is part of this line, providing a complete solution with included clutch and pressure switch components to simplify installation and ensure system compatibility.

Technical Details and Features

This Four Seasons A/C compressor uses R134a refrigerant and is pre-filled with compatible Pag 150 oil to maintain lubrication and system efficiency. The unit includes a high-pressure pressure switch and a pin-type terminal for electrical connections. The compressor features a 6-groove serpentine pulley with a diameter of approximately 119.38 mm (4.703 inches), designed for smooth belt engagement. The clutch coil is positioned at 12 o'clock and operates at 12 volts. Mounting is via an ear mount style with a 30.48 mm distance between mounts. Both suction and discharge ports use sealing washers with included O-rings for secure, leak-free connections.

Common Applications and Problem Resolution

• Restores A/C cooling in Chevrolet Lumina APV, Oldsmobile Silhouette, and Pontiac Trans Sport
• Replaces worn or failed compressors causing insufficient cooling or system noise
• Addresses clutch engagement issues with included clutch assembly
• Solves refrigerant leaks at compressor ports with included sealing washers and O-rings
• Resolves electrical faults related to pressure switch failure

Installation Notes and Tips

Installation requires removal of the old compressor and proper evacuation of the A/C system. The Four Seasons 58979 compressor comes pre-filled with oil, but verify oil levels according to vehicle specifications. Use the included sealing washers and O-rings to ensure leak-free connections at suction and discharge ports. Note that mounting hardware is not included and must be reused or sourced separately. Confirm the serpentine belt condition and alignment during installation. Electrical connections use a pin-type terminal; ensure secure attachment to the vehicle wiring harness.

Quality Assurance and Warranty

Four Seasons New Compressor 58979 is a new, direct replacement part manufactured to meet or exceed OEM standards. The compressor includes a clutch and pressure switch to provide a complete solution for HVAC system repairs. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.