Four Seasons 57991 A/C Compressor

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

The Four Seasons Reman Compressor 57991 is designed to restore your vehicle's air conditioning system with precision. Engineered for select Buick, Chevrolet, Oldsmobile, and Pontiac models, this remanufactured A/C compressor ensures compatibility and performance with R134a refrigerant systems.

• Compatible with R134a refrigerant and PAG 150 oil
• Includes oil pre-filled for immediate installation
• Features a 5-groove serpentine pulley for efficient belt engagement
• Comes with clutch assembly included, 5-inch maximum diameter
• 12-volt coil with pin terminal type and coil clock position at 2 o'clock
• Tangent mount type with a 2-inch distance from clutch to mounting flange
• Sealing washer suction ports sized 5/8" x 5/8" with included O-rings
• Designed for V5 compressor type applications

About the Four Seasons Reman Compressor Line

The Four Seasons Reman Compressor line offers remanufactured A/C compressors that meet strict quality standards to provide reliable performance and fitment. The Reman Compressor 57991 is part of this line, delivering a cost-effective solution for restoring air conditioning function in compatible GM vehicles while maintaining OEM specifications.

Detailed Product Description

This Four Seasons Reman Compressor 57991 is specifically engineered for use in Buick Achieva, Chevrolet Cavalier, Malibu, Oldsmobile Skylark, Pontiac Grand Am, and Sunfire models. It is pre-filled with PAG 150 oil and designed for R134a refrigerant systems, ensuring proper lubrication and cooling efficiency. The compressor features a 5-groove serpentine pulley with a 5-inch diameter and a tangent mount style for secure installation. The included clutch assembly and pin-type terminal coil operate at 12 volts, with a coil clock position set at 2 o'clock for precise electrical connection. Suction ports use sealing washers with two O-rings included for leak prevention.

Common Issues Addressed by This A/C Compressor

• Loss of air conditioning cooling performance
• Compressor clutch failure or slipping
• Refrigerant leaks due to worn seals or O-rings
• Unusual noises from compressor pulley or clutch
• Inconsistent compressor engagement in GM vehicles

Installation Notes and Tips

• Ensure system is evacuated and flushed before installation
• Verify compatibility with vehicle make and model before purchase
• Use proper torque specifications for mounting bolts (mounting hardware not included)
• Replace O-rings and seals to prevent leaks
• Check serpentine belt condition and alignment during installation

Quality Assurance and Warranty

The Four Seasons Reman Compressor 57991 undergoes rigorous remanufacturing processes to meet OEM standards. It includes pre-filled oil and necessary seals for reliable operation. While mounting hardware is not included, the compressor is backed by Four Seasons' quality assurance protocols. Please consult product documentation or supplier for specific warranty details.