Four Seasons 58278 A/C Compressor

Overview of Four Seasons New Compressor 58278

The Four Seasons New Compressor 58278 is designed specifically for select Chevrolet and GMC models, including the Astro, S10, S10 Blazer, S15, S15 Jimmy, Safari, and Sonoma. This A/C compressor is engineered to work with R134a refrigerant and includes essential components for reliable HVAC system performance.

• Compatible with R134a refrigerant and PAG 150 oil
• Includes clutch and oil-filled compressor for immediate installation
• Pressure switch and high-pressure switch included for system protection
• 6-groove serpentine pulley with 5-inch diameter for proper belt alignment
• Ear mount type with precise mounting distance for direct fit
• 12-volt coil with spade terminal for electrical connection
• Sealing washer type discharge and suction ports with included O-rings

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. The 58278 model is part of this line, providing a complete solution with included clutch, oil, and pressure switches to simplify installation and ensure compatibility with the specified GM vehicles. This line focuses on delivering reliable HVAC performance with components matched to factory standards.

Technical Description and Features

This Four Seasons A/C compressor features a V5 compressor type optimized for R134a refrigerant systems. It comes pre-filled with PAG 150 oil, ensuring proper lubrication from the start. The compressor includes a 6-groove serpentine pulley with a 5-inch diameter, designed to fit the belt system on compatible Chevrolet and GMC models. The clutch assembly is included, with a maximum diameter of 5 inches and a coil positioned at the 10 o'clock clock position for proper engagement. The compressor uses a pressure switch and a high-pressure switch to protect the system from abnormal pressure conditions. Mounting is via an ear mount with a 29.21 mm mount distance, allowing for a secure and precise fit. Electrical connections are made through spade terminals on a 12-volt coil.

Compatible Vehicles and Common Applications

• Replacement for A/C compressor failures in Chevrolet Astro and GMC Safari
• Restores air conditioning function in Chevrolet S10, S10 Blazer, and GMC Sonoma
• Suitable for GMC S15 and S15 Jimmy models requiring a V5 compressor
• Addresses issues related to compressor clutch failure or pulley wear
• Resolves refrigerant leaks due to worn seals or damaged ports

Installation Notes and Tips

Before installation, verify compatibility with your vehicle’s make and model. The Four Seasons 58278 compressor comes pre-filled with oil and includes the clutch and pressure switches, but mounting hardware is not included and must be sourced separately. Ensure the serpentine belt is in good condition and properly tensioned to avoid premature wear. Use the included O-rings and sealing washers on discharge and suction ports to prevent leaks. Electrical connections should be made to the spade terminals on the 12-volt coil, observing polarity and secure attachment.

Quality Assurance and Warranty

The Four Seasons New Compressor 58278 is a new, direct replacement part manufactured to meet or exceed OEM specifications. It includes factory-installed components such as the clutch, oil, and pressure switches to ensure system compatibility and reliability. While specific warranty details are not provided here, Four Seasons typically offers limited warranties on their new compressor line to cover defects in materials and workmanship.