Four Seasons 4218NK A/C Compressor and Component Kit

Complete A/C Kit for Toyota 4Runner and FJ Cruiser

Restore air conditioning performance with the Four Seasons Complete A/C Kit 4218NK. This kit combines the major replacement components needed for a full A/C service on select Toyota applications, including a new compressor, filter drier, expansion valve, oil, and O-rings.

Compatible with 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser equipped with a 10S17C compressor, this Four Seasons Complete A/C Kit 4218NK is built for R134a systems and uses O-ring inlet and outlet connections at the expansion valve.

Key Features

• Four Seasons Complete A/C Kit, part number 4218NK
• Includes a new compressor, filter drier, expansion valve, oil, and O-rings
• Designed for R134a refrigerant systems
• Block-type expansion device with O-ring inlet and outlet connections
• Compressor oil included
• Limited lifetime warranty

Product Details

The Four Seasons Complete A/C Kit line is built to simplify major air conditioning repairs by grouping the core service parts needed for compressor-related replacement work. Part number 4218NK is specified for Toyota 4Runner and Toyota FJ Cruiser models that use the 10S17C compressor, making it a focused solution for common HVAC service needs on these vehicles. The kit includes 98306 (new compressor), 83029 (filter drier), 39143 (expansion valve), 59007 (oil), and O-rings. Four Seasons 4218NK is intended for R134a-equipped systems and uses a block-type expansion device with O-ring inlet and outlet fittings.

This part cross-references Four Seasons 4218NK for the same application.

What It Helps Fix

• Weak or inconsistent cabin cooling
• Noisy or failing A/C compressor operation
• Moisture contamination in the A/C system
• Restricted refrigerant flow through the expansion valve
• Loss of cooling performance after compressor replacement

Installation Notes and Tips

Verify the vehicle uses a 10S17C compressor before ordering. Replace the filter drier and expansion valve during compressor service to help address contamination and flow issues in the system. Confirm refrigerant type is R134a and match all O-ring connections during installation. Proper evacuation, leak checking, and system recharge are required after service.

Quality Assurance

Four Seasons backs this Complete A/C Kit 4218NK with a limited lifetime warranty. The kit is assembled for direct service use on the listed Toyota 4Runner and FJ Cruiser applications, with components selected to support a complete air conditioning repair.