Four Seasons 58521 A/C Compressor

Overview of Four Seasons New Compressor 58521

The Four Seasons New Compressor 58521 is designed for reliable air conditioning performance in select Volvo models. Engineered to meet OEM specifications, this A/C compressor supports both R12 and R134a refrigerants, making it a versatile choice for Volvo 240, 740, 745, 760, 780, 940, and 960 vehicles.

• Compatible refrigerant types: R12 and R134a
• Includes oil pre-filled with PAG 46 compatible refrigerant oil
• Equipped with a 2-groove serpentine pulley
• Bullet-type electrical terminal with 12V coil voltage
• Includes clutch assembly with a maximum diameter of 5.25 inches
• Ear mount installation type with precise mounting distances
• Comes with green O-rings for suction port sealing
• Includes diode for electrical protection

Detailed Product Description

The Four Seasons New Compressor 58521 is a new, direct replacement A/C compressor designed specifically for Volvo models including the 240, 740, 745, 760, 780, 940, and 960 series. This compressor uses the DKS15BH type mechanism and is compatible with both R12 and R134a refrigerants, providing flexibility for different system requirements. It comes pre-filled with PAG 46 oil, ensuring proper lubrication and optimal performance right out of the box.

The compressor features a 2-groove serpentine pulley with a diameter of 5.25 inches, matching the original equipment specifications for smooth belt operation. The clutch assembly is included and has a maximum diameter of 5.25 inches, with a coil voltage of 12 volts and a single wire lead for coil clock position. The ear mount design and specific mounting distances (0.953125 inches from clutch to mounting flange and 1.546875 inches mount distance B) ensure a precise fit in the designated Volvo models.

Additional features include bullet-type electrical terminals and green O-rings ([24608] and [24610]) for the suction port, which uses an O-ring seal to prevent leaks. The compressor also includes a diode for electrical protection. Note that mounting hardware is not included, and installation may require the use of the original equipment manifold.

Four Seasons New Compressor Product Line

The Four Seasons New Compressor line focuses on delivering new, factory-quality replacement compressors that meet or exceed OEM standards. This product line emphasizes compatibility with original refrigerant types and oils, ensuring reliable operation and longevity. The 58521 model exemplifies this approach by providing a complete compressor and clutch assembly designed for specific Volvo applications, supporting both R12 and R134a systems.

Common Applications and Issues Addressed

• Replacement for failing or seized A/C compressors in Volvo 240, 740, 745, 760, 780, 940, and 960 models
• Restores proper air conditioning cooling performance
• Eliminates compressor clutch engagement problems
• Resolves refrigerant leaks due to worn seals or O-rings
• Addresses noise or vibration caused by worn pulley or internal compressor components

Installation Notes and Tips

• Verify compatibility with your specific Volvo model and year before installation
• Use original equipment manifold as needed during installation
• Ensure proper belt alignment with the 2-groove serpentine pulley
• Replace O-rings and seals to prevent refrigerant leaks
• Check electrical connections for the bullet-type terminal and diode

Quality Assurance and Warranty

The Four Seasons New Compressor 58521 is a new, factory-quality replacement part designed to meet OEM specifications. It includes pre-filled refrigerant oil and necessary sealing components to ensure reliable operation. While mounting hardware is not included, the compressor is engineered for precise fitment in compatible Volvo models. Warranty coverage details should be confirmed with the parts provider or manufacturer.