Four Seasons 178378 A/C Compressor

Reliable A/C Compressor for Jeep Grand Cherokee Models

The Four Seasons New Compressor 178378 is designed specifically for Jeep Grand Cherokee and Grand Cherokee L vehicles. Engineered to work with R1234yf refrigerant, this A/C compressor ensures efficient cooling performance and durability for your HVAC system.

Key Features of Four Seasons New Compressor 178378

• Compatible refrigerant type: R1234yf
• Includes oil for optimal lubrication
• 6-groove serpentine pulley with 4.250-inch outside diameter
• Clutch included for seamless operation
• Hanon compressor type with 12V coil voltage
• Tangent mount style for secure installation
• Lead wire connector type for electrical connection
• Includes O-ring and sealing washer kit (part numbers 24068 and 24069)
• New unit, not remanufactured

About the Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new HVAC compressors designed to meet or exceed OEM specifications. This product line focuses on providing reliable, direct-fit replacements that maintain factory performance standards. The 178378 model is part of this line, ensuring compatibility and quality for Jeep Grand Cherokee and Grand Cherokee L vehicles.

Detailed Product Description

This Four Seasons A/C compressor 178378 is engineered for use with R1234yf refrigerant, the modern standard for automotive air conditioning systems. It comes pre-filled with oil to support proper lubrication and reduce wear. The compressor features a 6-groove serpentine pulley with a 4.250-inch outside diameter, designed to match the original equipment specifications. The included clutch allows for efficient engagement and disengagement of the compressor, while the 12V coil voltage ensures proper electrical operation. The tangent mount style provides a secure and stable fitment in the engine bay. Electrical connection is facilitated through a lead wire connector, simplifying installation. Additionally, the compressor includes O-rings and sealing washers (24068 and 24069) to help maintain a leak-free system.

Common Issues Addressed by This A/C Compressor

• Loss of cooling performance due to compressor failure
• Clutch engagement problems affecting air conditioning operation
• Leaks caused by worn or damaged seals and O-rings
• Noise or vibration from a failing compressor pulley
• Incompatibility with R1234yf refrigerant systems

Installation Notes and Tips

Ensure the vehicle is compatible with R1234yf refrigerant before installation. Verify the pulley groove count and diameter match the existing system. Use proper tools to avoid damaging the clutch or pulley during removal and installation. Replace O-rings and sealing washers included with the compressor to prevent leaks. Electrical connections should be checked for secure fitment with the lead wire connector. This compressor is designed for tangent mount installation; confirm mounting points align correctly.

Quality Assurance and Warranty

The Four Seasons New Compressor 178378 is a new, direct-fit replacement part manufactured to meet OEM standards. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.