Four Seasons 78597 A/C Compressor

Overview of Four Seasons New Compressor 78597

The Four Seasons New Compressor 78597 is designed for automotive HVAC systems requiring reliable air conditioning performance. Engineered to work with R134a refrigerant and compatible with vehicles using Pag 100 oil, this A/C compressor ensures efficient cooling and system longevity.

• Compatible refrigerant type: R134a
• Includes oil filled with Pag 100 refrigerant oil
• 7-groove serpentine pulley for optimal belt engagement
• Packard terminal type for secure electrical connection
• Includes clutch with a maximum diameter of 4.750 inches
• 12-volt coil voltage with 1 wire lead coil clock position
• Ear mount type with 1.000 inch distance from clutch to mounting flange
• Discharge and suction ports use O-ring seals for leak prevention
• Compressor type: Sd7h15 with top-horizontal pad head configuration

Detailed Product Description

This Four Seasons New Compressor 78597 is a new replacement A/C compressor designed to meet the specifications of Sanden/Sankyo Sd7h15 compressor types. It features a 7-groove serpentine pulley with a diameter of approximately 120.65 mm (4.75 inches), ensuring compatibility with many vehicle belt systems. The clutch assembly is included, with a maximum diameter of 4.750 inches, and the coil operates at 12 volts with a single wire lead for straightforward electrical integration. The compressor is oil filled with Pag 100 oil, which is compatible with R134a refrigerant systems, helping maintain proper lubrication and system efficiency. The ear mount design with a 25.4 mm (1 inch) distance from clutch to mounting flange allows for secure installation in compatible vehicles. Both suction and discharge ports utilize O-ring seals, including two green O-rings (part number 24615), to help prevent refrigerant leaks and maintain system integrity.

Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new, direct replacement compressors designed to meet or exceed OEM specifications. This product line focuses on providing reliable, ready-to-install compressors that include essential components such as the clutch and oil fill. The 78597 model is part of this line, ensuring compatibility with vehicles requiring the Sd7h15 compressor type and R134a refrigerant systems.

Common Applications and Issues Addressed

• Replacement for failing or seized A/C compressors in vehicles using R134a refrigerant
• Restores proper air conditioning cooling performance
• Eliminates compressor clutch engagement problems
• Resolves refrigerant leaks due to worn or damaged compressor seals
• Addresses noisy or inefficient compressor operation

Installation Notes and Tips

When installing the Four Seasons New Compressor 78597, ensure the system is properly evacuated and flushed before installation. Verify compatibility with your vehicle’s make and model, especially those requiring the Sd7h15 compressor type. Use the included clutch and ensure the serpentine belt is correctly routed over the 7-groove pulley. Note that mounting hardware is not included and must be reused or sourced separately. Properly torque mounting bolts and check electrical connections to the Packard terminal for secure fitment.

Quality Assurance and Warranty

Four Seasons provides this new compressor with quality assurance to meet industry standards for durability and performance. The product is new and includes oil fill and clutch assembly to facilitate reliable operation. Warranty details should be confirmed with the distributor or retailer, as they may vary by region.