Four Seasons 58078 A/C Compressor

Reliable A/C Compressor for GM Vehicles

The Four Seasons New Compressor 58078 is designed to restore efficient air conditioning performance in select GM vehicles. Engineered for compatibility with R134a refrigerant, this A/C compressor ensures proper cooling and system reliability for models like Chevrolet Blazer, GMC Sierra, and Pontiac Bonneville.

• Compatible with R134a refrigerant and Pag 46 oil
• Includes clutch and superheat switch for precise operation
• Direct mount design with 12V coil voltage
• Single-groove pulley compatible with V-belt systems
• O-ring sealed suction and discharge ports for leak prevention

Four Seasons New Compressor Product Line

The New Compressor line from Four Seasons offers brand-new, ready-to-install A/C compressors designed to meet or exceed original equipment specifications. This product line focuses on delivering reliable performance with included components such as clutches and switches, reducing the need for additional parts during installation. The 58078 model exemplifies this approach by providing a complete compressor solution for GM vehicles requiring a direct mount A6 type compressor.

Detailed Product Features and Specifications

This Four Seasons A/C compressor (part number 58078) is oil filled and compatible with Pag 46 refrigerant oil, ensuring proper lubrication and longevity. It features a superheat switch included for accurate system pressure control. The compressor has a 5.75-inch clutch diameter and a single-groove pulley designed for V-belt drive systems. The coil clock position is set at 10 o'clock, and the terminal type is spade for straightforward electrical connections. Both suction and discharge ports use O-ring seals, including two green oval O-rings (part number 24619), to maintain a secure, leak-free fit.

Compatible Vehicles and Applications

• Buick LeSabre, Century, and Skylark
• Chevrolet Blazer, C10, Impala, and Monte Carlo
• GMC Sierra, Jimmy, and K1500 Suburban
• Oldsmobile Cutlass, Delta 88, and 98
• Pontiac Bonneville, Firebird, and Grand Prix

Common Issues Addressed by This Compressor

• Loss of A/C cooling due to compressor failure
• Clutch engagement problems causing intermittent cooling
• Refrigerant leaks from worn seals or ports
• Electrical issues related to coil or switch malfunction
• Noise or vibration from damaged pulley or clutch assembly

Installation Notes and Tips

This compressor is designed for direct mount installation and includes the clutch and superheat switch for convenience. Mounting hardware is not included, so retain original bolts or source separately. Ensure the system is properly evacuated and recharged with R134a refrigerant and compatible Pag 46 oil. Verify the coil voltage and terminal connections match vehicle specifications before installation. Proper belt alignment with the single-groove V-belt pulley is essential for optimal operation.

Quality Assurance and Warranty

Four Seasons New Compressor 58078 is a new, not remanufactured, component built to meet OEM standards. It comes oil filled and includes necessary seals and switches to reduce installation errors. While specific warranty details vary by distributor, Four Seasons products typically include a limited warranty covering defects in materials and workmanship.