Four Seasons 9120NK A/C Compressor and Component Kit - Front

Complete A/C Kit for GM SUVs and Trucks

Four Seasons 9120NK is a complete air conditioning kit with a new compressor for select Cadillac, Chevrolet, and GMC applications. It combines the major A/C service components needed for a front HVAC repair, including the compressor, accumulator, orifice tube, oil, and O-rings.

Built for R134a systems, this Four Seasons Complete A/C Kit is organized for direct replacement service on vehicles such as the Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon. The 9120NK kit is listed for front-position applications and includes the specified compressor and related service parts for the matched fitments.

Key Features

• Four Seasons Complete A/C Kit, part number 9120NK
• Complete air conditioning kit with new compressor
• Includes compressor oil and O-rings
• Uses an orifice tube expansion device
• R134a refrigerant type
• Receiver drier/accumulator included with P-nut inlet and outlet fittings
• Limited lifetime warranty
• Cross-reference: 523284

Product Details

The Four Seasons Complete A/C Kit line is built to simplify A/C compressor replacement by grouping the core service parts into one matched package. This 9120NK kit includes compressor 78377, accumulator 83155, orifice tube 38644, oil 59007, and O-rings. The compressor oil is included, and the system uses a gray porous orifice tube with a 0.072-inch diameter. The accumulator measures 3.500 inches in diameter and 9.250 inches in length with P-nut fittings.

Compatible With select 2010-2014 Cadillac Escalade, Cadillac Escalade ESV, Cadillac Escalade EXT, Chevrolet Tahoe, Chevrolet Suburban, GMC Yukon, and GMC Yukon XL applications, this kit also covers certain Chevrolet Silverado, Sierra, and Cheyenne models with listed compressor and package requirements. Use the exact fitment notes to confirm the correct front HVAC application before ordering. Four Seasons 9120NK is a practical choice for restoring A/C performance on GM vehicles that use the specified compressor setup.

Common A/C Problems This Kit Addresses

• Failed compressor causing loss of cooling
• Low refrigerant performance from worn seals or O-rings
• Restricted flow from a worn orifice tube
• Accumulator contamination after compressor failure
• Noise or poor operation from a damaged A/C compressor assembly

Installation Notes and Tips

• Verify the compressor type in the fitment notes, including 10S17F or 10S20F requirements where listed.
• Confirm front-position application and any package notes such as ATC, rear A/C, or ambulance package requirements.
• Flush the system as needed after compressor failure and replace contaminated components before charging.
• Use the specified R134a refrigerant and follow the vehicle service procedure for oil balancing and evacuation.
• Check all sealing surfaces and fittings before final assembly.

Quality Assurance

Four Seasons 9120NK is backed by a limited lifetime warranty. The kit is assembled with the listed replacement components to support a complete A/C service on the specified Cadillac, Chevrolet, and GMC fitments.