Four Seasons 58978 A/C Compressor

Overview of Four Seasons New Compressor 58978

The Four Seasons New Compressor 58978 is designed specifically for Chevrolet S10 and GMC Sonoma models. This A/C compressor is engineered to work with R134a refrigerant and includes essential components for reliable HVAC system performance.

• Compatible with Chevrolet S10 and GMC Sonoma vehicles
• Designed for R134a refrigerant systems
• Includes oil filled compressor with PAG 150 compatible refrigerant oil
• Equipped with a high-pressure pressure switch
• Features a 6-groove serpentine pulley with a 5-inch diameter
• Includes clutch assembly and sealing washers for discharge and suction ports
• 12-volt coil with coil clock position at 12 o'clock
• Ear mount installation type with 30.48 mm mount distance

Detailed Product Description

The Four Seasons New Compressor 58978 is a V5 type A/C compressor designed for use in GM vehicles, specifically Chevrolet S10 and GMC Sonoma models. It operates with R134a refrigerant and is pre-filled with PAG 150 oil, ensuring proper lubrication and system compatibility. The compressor includes a pressure switch for high-pressure monitoring, enhancing system safety and efficiency.

This compressor features a 6-groove serpentine pulley with a 5-inch diameter, designed to match factory belt configurations. The clutch assembly is included, with a maximum diameter of 5 inches and a coil voltage of 12 volts positioned at the 12 o'clock clock position for proper alignment. The discharge and suction ports use sealing washers and come with two O-rings (part number 24354) to ensure leak-free connections.

The mounting type is ear mount with a 30.48 mm distance between mounts, allowing for straightforward installation on compatible vehicles. Note that mounting hardware is not included with this compressor.

About the Four Seasons New Compressor Line

The New Compressor product line from Four Seasons offers brand-new, factory-quality A/C compressors designed to meet or exceed OEM specifications. This line focuses on delivering reliable performance and compatibility with specific vehicle makes and models, such as the Chevrolet S10 and GMC Sonoma. The 58978 model is part of this line, providing a direct replacement solution with included clutch and pressure switch components for a complete HVAC system repair.

Common Applications and Issues Addressed

• Replacement for failed or leaking A/C compressors in Chevrolet S10 and GMC Sonoma
• Restores proper refrigerant flow and pressure in R134a systems
• Resolves clutch engagement problems with included clutch assembly
• Fixes high-pressure switch failures affecting A/C system operation
• Eliminates oil contamination or compressor wear issues with new oil-filled unit

Installation Notes and Tips

• Ensure compatibility with Chevrolet S10 or GMC Sonoma models before installation
• Use proper tools to avoid damage to the ear mount and pulley grooves
• Replace O-rings and sealing washers during installation to prevent leaks
• Verify coil voltage and pressure switch connections for correct operation
• Check belt alignment on the 6-groove serpentine pulley for smooth operation

Quality Assurance and Warranty

The Four Seasons New Compressor 58978 is a new, factory-quality replacement part designed to meet OEM standards. It includes oil and clutch components to ensure proper function upon installation. 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 manufacturer resources for exact warranty terms.