Four Seasons 178371 A/C Compressor

Reliable A/C Compressor for Buick, Cadillac, Chevrolet, and GMC Vehicles

The Four Seasons New Compressor 178371 is designed to restore efficient air conditioning performance in select Buick, Cadillac, Chevrolet, and GMC models. Engineered to meet OEM specifications, this Denso-type A/C compressor supports R1234yf refrigerant systems and includes essential components for a dependable replacement.

• Compatible with Buick Acadia, Cadillac XT4, XT5, XT6, Chevrolet Blazer, Envision, Traverse, and GMC models
• Designed for R1234yf refrigerant systems
• Includes oil pre-filled for optimal lubrication
• Features a 5-groove serpentine pulley with a 4.250-inch outside diameter
• Comes with an integrated clutch and 12-volt coil voltage
• Mounts using a 3 tangent one on rear head configuration
• Equipped with lead wire connector type for electrical connection
• Includes slim line sealing washers (O-Rings 24255 and 24234) for proper sealing

About the Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new, direct-fit A/C compressors designed to meet or exceed original equipment standards. This product line focuses on providing reliable replacements that maintain system integrity and performance. The 178371 model exemplifies this approach by incorporating key features such as pre-filled oil and a compatible clutch assembly, ensuring a straightforward installation and long-term durability.

Detailed Product Description

The Four Seasons 178371 A/C compressor is a Denso-type compressor specifically engineered for vehicles using R1234yf refrigerant. It comes pre-filled with oil to ensure proper lubrication from the start, reducing the risk of premature wear. The compressor includes a clutch assembly with a 12-volt coil, designed to engage smoothly with the serpentine belt system. The pulley features five grooves and measures 4.250 inches in outside diameter, matching factory specifications for a precise fit. Mounting is accomplished via a 3 tangent one on rear head setup, and the electrical connection uses a lead wire type connector. The included slim line sealing washers (O-Rings 24255 and 24234) help maintain a secure, leak-free seal within the system.

Common Applications and Issues Addressed

• Replacement for failing or noisy A/C compressors in Buick Acadia and Chevrolet Traverse
• Restores proper clutch engagement in Cadillac XT4 and XT5 air conditioning systems
• Solves refrigerant leaks caused by worn or damaged O-rings in GMC models
• Addresses loss of cooling performance due to compressor failure in Chevrolet Blazer and Envision
• Eliminates pulley or belt slippage issues related to worn compressor components

Installation Notes and Tips

Ensure the A/C system is properly evacuated and flushed before installing the new compressor to prevent contamination. Verify compatibility with the vehicle’s refrigerant type R1234yf. Use the included slim line sealing washers to maintain a secure seal and prevent leaks. Confirm the serpentine belt condition and alignment during installation. Electrical connections should be checked for secure fitment with the lead wire connector. This compressor does not include mounting hardware or a switch, so reuse existing components if applicable.

Quality Assurance and Warranty

The Four Seasons New Compressor 178371 is a brand-new unit manufactured to meet OEM standards for fit, form, and function. It includes pre-filled oil and a clutch assembly to ensure reliable operation. 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.