Four Seasons 88958 A/C Compressor

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

The Four Seasons New Compressor 88958 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 LeSabre, Chevrolet Lumina Van, and Pontiac Bonneville.

• Compatible with R134a refrigerant and Pag 46 oil
• Includes clutch and high-pressure switch for complete functionality
• Features a 6-groove serpentine pulley with 5.5-inch diameter
• Oil-filled compressor with sealing washer discharge and suction ports
• Designed for Type III mounting with precise clutch-to-mounting flange distance

Four Seasons New Compressor Product Line Overview

The New Compressor line from Four Seasons offers brand-new, direct replacement A/C compressors engineered to meet original equipment specifications. This ensures reliable operation and compatibility with factory refrigerants and oils. The 88958 model is part of this line, providing a fully assembled compressor with clutch and pressure switch included, simplifying installation and reducing downtime.

Detailed Features and Specifications

This Four Seasons A/C compressor uses R134a refrigerant and is compatible with Pag 46 oil, ensuring proper lubrication and system longevity. The included clutch has a maximum diameter of 5.5 inches and is positioned 0.59375 inches from the mounting flange, matching OEM dimensions. The compressor features a 6-groove serpentine pulley with a 5.5-inch lip and ridge diameter, designed for smooth belt engagement. The coil operates at 12 volts with a coil clock position at 2 o'clock, and the terminal type is pin style for secure electrical connections. Both discharge and suction ports use sealing washers with included O-rings for leak prevention. The high-pressure switch is included to maintain system safety and performance.

Compatible Vehicles and Applications

• Buick models including LeSabre and Park Avenue
• Chevrolet models such as Lumina APV, Lumina Van, and Silhouette
• Oldsmobile 88 and 98 series
• Pontiac Bonneville, Regal, and Trans Sport

Common Issues Addressed by This Compressor

• Loss of A/C cooling due to compressor failure
• Clutch engagement problems causing intermittent cooling
• Leaks from worn or damaged compressor seals
• High-pressure switch malfunctions affecting system safety
• Noise or pulley wear impacting belt drive performance

Installation Notes and Tips

Installation requires removal of the old compressor and proper evacuation of the A/C system. Ensure the use of compatible refrigerant oil (Pag 46) and verify the correct routing of the serpentine belt on the 6-groove pulley. The included clutch and high-pressure switch simplify replacement, but mounting hardware is not included and must be reused or sourced separately. Confirm the coil voltage and terminal connections match vehicle specifications before installation.

Quality Assurance and Warranty

The Four Seasons New Compressor 88958 is a new, not remanufactured, component built to meet or exceed OEM standards. It includes oil and necessary seals to ensure proper operation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.