Four Seasons 78390 A/C Compressor

Reliable A/C Compressor for Lexus and Toyota Vehicles

The Four Seasons New Compressor 78390 is designed to restore efficient air conditioning performance in select Lexus and Toyota models. Engineered for compatibility with R134a refrigerant, this A/C compressor ensures proper cooling and system reliability.

• Compatible with Lexus and Toyota models including Avalon, Camry, ES300, ES330, Highlander, RX300, RX330, and Solara
• Uses R134a refrigerant and compatible with PAG 46 refrigerant oil
• Includes clutch and oil-filled compressor for immediate installation
• Features a 6-groove serpentine pulley with a 12V coil voltage
• Equipped with an RPM sensor switch and pin-type terminal for precise operation
• Tangent mount design with specific mounting distance of 59.182 mm
• O-ring sealed suction and discharge ports with included green O-rings

About the Four Seasons New Compressor Line

The Four Seasons New Compressor product line offers brand-new, direct replacement compressors designed to meet original equipment specifications. The New Compressor 78390 model provides a complete solution with included clutch, oil, and speed sensor switch, ensuring compatibility and ease of installation for Lexus and Toyota vehicles requiring a Nippondenso 10s17c compressor type.

Detailed Product Description

This Four Seasons A/C compressor (part number 78390) is engineered for vehicles using R134a refrigerant and PAG 46 oil, maintaining system integrity and performance. The compressor features a 6-groove serpentine pulley with a diameter of approximately 93.7 mm and a clutch maximum diameter of 3.6875 inches. The included clutch and oil-filled design reduce installation time and help prevent premature wear. The compressor’s tangent mount and precise mounting distance ensure proper fitment in compatible Lexus and Toyota models. Additionally, the RPM sensor switch and pin terminal type provide accurate clutch engagement and electrical connection.

Common Applications and Issues Addressed

• Restores A/C cooling performance in Lexus Avalon, Camry, ES300, ES330, Highlander, RX300, RX330, and Toyota Solara
• Replaces faulty or worn compressors causing insufficient cooling or compressor noise
• Solves clutch engagement problems with included clutch and speed sensor switch
• Addresses refrigerant leaks with O-ring sealed suction and discharge ports
• Eliminates compressor failure due to lack of proper lubrication with included oil

Installation Notes and Tips

• May require use of original equipment (OE) manifold for proper installation
• Mounting hardware is not included; reuse existing hardware or source separately
• Ensure correct routing of serpentine belt on the 6-groove pulley
• Verify electrical connections match pin terminal and 1-wire coil lead configuration
• Check refrigerant oil type compatibility (PAG 46) before installation

Quality Assurance and Warranty

The Four Seasons New Compressor 78390 is a new, direct replacement part manufactured to meet OEM standards. It includes essential components such as the clutch, oil, and speed sensor switch to ensure reliable operation. While specific warranty details vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Refer to product documentation for exact warranty terms.