Four Seasons 58551 A/C Compressor

Overview of Four Seasons New Compressor 58551

The Four Seasons New Compressor 58551 is designed for reliable air conditioning performance in select Jeep, Mercury, and Saab vehicles. Engineered to work with R134a refrigerant and compatible with Pag 100 oil, this A/C compressor ensures efficient cooling and system longevity.

• Compatible Refrigerant: R134a
• Refrigerant Oil Type: Pag 100 (included)
• Includes Oil and Clutch Assembly
• 12 Volt Coil Voltage with 1 Wire Lead
• Dual Groove Pulley for V-belt Drive
• Ear Mounting Type with Precise Mount Distances
• O-ring Sealed Suction and Discharge Ports
• Designed for Sanden/Sankyo SD508 Compressor Type

Four Seasons New Compressor Product Line Details

The New Compressor line from Four Seasons focuses on delivering brand-new, direct replacement A/C compressors that meet original equipment specifications. This ensures compatibility and performance for vehicles requiring a Sanden/Sankyo SD508 compressor type, such as the Jeep Cherokee and Mercury Tracer. The inclusion of clutch and oil simplifies installation and reduces the need for additional parts.

Technical Description and Features

This Four Seasons A/C compressor (part number 58551) features a 12-volt coil with a single wire lead and a bullet-type terminal for straightforward electrical connections. The pulley system includes two grooves designed for a 0.5-inch wide V-belt, with a pulley diameter of approximately 5.25 inches (133.35 mm). The clutch assembly is included, with a maximum diameter of 5.25 inches, ensuring proper engagement and reliable operation. The compressor uses an ear mount style with specific mounting distances (0.953125 inches from clutch to mounting flange and 1.546875 inches mount distance B) to fit designated vehicle models accurately. Both suction and discharge ports utilize O-ring seals, with green O-rings included for a secure, leak-free connection.

Compatible Vehicles and Applications

• Jeep Cherokee, Comanche, Grand Wagoneer, Wagoneer, Wrangler
• Mercury Tracer
• Saab 9000
• Jeep J10 and J20 models

This compressor is intended for use in HVAC systems requiring a Sanden/Sankyo SD508 compressor type and R134a refrigerant, making it suitable for restoring or maintaining factory A/C performance in these vehicles.

Common Issues Addressed by This Compressor

• Loss of A/C cooling due to compressor failure
• Clutch engagement problems affecting air conditioning operation
• Leaks from worn or damaged compressor seals
• Incompatibility with R134a refrigerant systems
• Worn pulley grooves causing belt slippage

Installation Notes and Tips

Installation requires removal of the old compressor and proper handling of refrigerant according to environmental regulations. The Four Seasons 58551 compressor comes pre-filled with Pag 100 oil and includes the clutch assembly, but mounting hardware is not included and must be sourced separately. Ensure the pulley belt matches the 0.5-inch V-belt specification and verify mounting distances for proper fitment. Electrical connections use a bullet terminal with a single wire lead, simplifying wiring during installation.

Quality Assurance and Warranty

As a new replacement compressor, the Four Seasons 58551 is manufactured to meet or exceed OEM standards for durability and performance. It includes factory-installed oil and clutch components to reduce installation errors. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.