Four Seasons 9129NK A/C Compressor and Component Kit - Front and Rear

Complete A/C Kit for GM SUV Applications

Four Seasons 9129NK is a Complete A/C Kit with a new compressor for select GM full-size SUVs. It is built for R134a systems and includes the major replacement components needed to service the air conditioning circuit on listed Cadillac, Chevrolet, and GMC applications.

This Four Seasons Complete A/C Kit is centered around a new compressor and includes the matching accumulator, orifice tube, expansion valve, compressor oil, and O-rings. The kit is configured for vehicles using a 10S20F compressor and a single-outlet accumulator setup.

Key Features

• Brand: Four Seasons Complete A/C Kit
• Part number: 9129NK
• Complete air conditioning kit with new compressor
• Refrigerant type: R134a
• Compressor oil included
• Gaskets and seals included
• Expansion device type: orifice tubes
• Orifice tube style: standard, black
• Limited lifetime warranty
• Kit includes compressor, accumulator, orifice tube, expansion valve, oil, and O-rings

Product Details

Four Seasons 9129NK is a complete A/C compressor kit designed around the listed system specifications, including a 0.072-inch black orifice tube, a 3.500-inch diameter accumulator, and P-nut inlet and outlet fittings on the accumulator. The kit is intended for service on 2001-2002 Chevrolet Tahoe and GMC Yukon models, plus 2002 Cadillac Escalade and Escalade EXT applications with the specified compressor and accumulator configuration. This part cross-references 520359 and MK1031 for the same application.

Common A/C Problems This Kit Can Address

• Loss of cooling performance from a worn or failed compressor
• Restricted refrigerant flow from a damaged or incorrect orifice tube
• Moisture control issues related to accumulator replacement
• System contamination after compressor failure
• Leaks at aged seals and O-rings in the A/C circuit

Installation Notes and Tips

• Verify the vehicle uses a 10S20F compressor before ordering.
• Confirm the accumulator has a single outlet and P-nut fittings.
• Match the system to the listed orifice tube diameter and black tube style.
• Flush the system as required after compressor failure before installing replacement components.
• Use the specified R134a service procedures and charge the system to factory specifications.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The part number 9129NK is built to the listed application details for direct service on the specified Cadillac Escalade, Cadillac Escalade EXT, Chevrolet Tahoe, and GMC Yukon models.