Four Seasons 6373NK A/C Compressor and Component Kit - Front and Rear

Complete A/C Kit for Toyota Sequoia

Four Seasons 6373NK is a complete air conditioning kit with a new compressor for 2001-2007 Toyota Sequoia models equipped with a 10S20C compressor. It brings together the major A/C service components needed for a front and rear HVAC repair in one application-specific package.

The Four Seasons Complete A/C Kit line is built for technicians and DIY buyers who want the compressor, drier, expansion valves, oil, and O-rings matched for the same repair. For Toyota Sequoia front and rear A/C service, 6373NK provides the core parts needed to restore refrigerant flow and system operation.

Key Features

• Complete Air Conditioning Kit with new compressor
• Fits 2001-2007 Toyota Sequoia, front and rear
• For vehicles using a 10S20C compressor
• Includes compressor oil and O-rings
• R134a refrigerant system application
• Block-type expansion device design
• Pad-mount receiver drier/accumulator configuration
• Limited lifetime warranty

Detailed Description

Four Seasons 6373NK is a complete A/C compressor kit for the Toyota Sequoia, covering 2001-2007 front and rear applications. The kit includes a new compressor, filter drier, expansion valves, oil, and O-rings, giving you the main service parts needed for a full HVAC repair on an R134a system. This part number, 6373NK, is listed for Sequoia models with a 10S20C compressor and is a direct fitment-focused solution for the vehicle’s air conditioning system.

As part of the Four Seasons Complete A/C Kit line, this package is organized around the major components commonly replaced during compressor service. The included block-type expansion devices use O-ring inlet and outlet connections, while the receiver drier/accumulator uses a pad-mount design. This makes 6373NK a practical choice when servicing Toyota Sequoia front and rear climate control components and restoring proper refrigerant circulation.

This part cross-references Four Seasons 6373NK for the same application.

Common Problems This Kit Can Address

• Compressor failure or seized compressor operation
• Loss of cooling performance in front or rear A/C circuits
• Contaminated or moisture-affected refrigerant system components
• Expansion valve restriction affecting refrigerant flow
• Service needs after compressor replacement on an R134a system

Installation Notes and Tips

Verify the vehicle is a 2001-2007 Toyota Sequoia with a 10S20C compressor before ordering. Replace the receiver drier/accumulator and expansion valves during compressor service, and evacuate and recharge the system according to factory procedures. Confirm all O-ring sealing surfaces are clean and properly lubricated with the supplied oil before assembly.

Quality Assurance

Four Seasons 6373NK includes a limited lifetime warranty. The kit is built for the specified Toyota Sequoia application and uses components selected for a complete A/C system repair.