Four Seasons 178379 A/C Compressor

Reliable A/C Compressor for Cadillac CT4 and CT5

The Four Seasons New Compressor 178379 is designed to restore efficient air conditioning performance in Cadillac CT4 and CT5 models. Engineered to meet OEM specifications, this A/C compressor ensures proper cooling and system reliability.

• Compatible with Cadillac CT4 and CT5 vehicles
• Refrigerant type: R134a and R1234yf
• Includes oil for optimal lubrication
• 6-groove serpentine pulley with 4.5-inch outside diameter
• 12-volt coil voltage with included clutch
• Denso compressor type with electronic control valve
• 3 tangent mounting points, one on rear head
• Pin-type electrical connector
• Includes slim line sealing washers (O-Rings 24255 and 24234)

Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new, direct replacement A/C compressors designed for precise fit and reliable operation. This product line focuses on delivering components that meet or exceed original equipment standards, providing a dependable solution for HVAC system repairs in various vehicle makes and models, including Cadillac.

Product Details and Specifications

This Four Seasons A/C compressor (part number 178379) is engineered for Cadillac CT4 and CT5 models, supporting both R134a and R1234yf refrigerants. The compressor features a Denso design with an electronic control valve to regulate refrigerant flow efficiently. It includes the necessary oil for lubrication and a clutch assembly compatible with a 12-volt coil system. The pulley has six grooves and measures 4.5 inches in diameter, designed for serpentine belt systems. Mounting is secured via three tangent points, including one on the rear head, ensuring a stable fit. Electrical connection is made through a pin-type connector. The package includes two slim line sealing washers (O-Rings 24255 and 24234) to maintain system integrity and prevent leaks.

Common Applications and Issues Addressed

• Restores A/C cooling performance in Cadillac CT4 and CT5
• Replaces faulty or worn compressors causing insufficient cooling
• Solves clutch engagement problems with included clutch assembly
• Addresses refrigerant leaks with included O-rings
• Improves system reliability by replacing electronic control valve components

Installation Notes and Tips

Ensure the vehicle’s refrigerant type matches R134a or R1234yf before installation. Properly evacuate and recharge the A/C system following compressor replacement. Verify the serpentine belt condition and alignment with the 6-groove pulley. Use the included O-rings to maintain a secure seal and prevent leaks. Electrical connections should be checked for secure pin engagement. This compressor does not include mounting hardware, so retain original fasteners or source replacements as needed.

Quality Assurance and Warranty

The Four Seasons New Compressor 178379 is a new, direct replacement part manufactured to meet OEM standards. It includes oil and clutch assembly to ensure proper function upon installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.