Four Seasons 10310SK A/C Compressor Replacement Service Kit

Four Seasons A/C Installer Kit for Toyota and Lexus

Four Seasons 10310SK is an A/C compressor replacement service kit for select Toyota and Lexus applications. It combines the core service components needed when replacing compressor-related HVAC parts, including PAG 46 compressor oil, an expansion valve, sealing components, and a desiccant bag kit.

Compatible With 2003-2014 Toyota 4Runner, Toyota FJ Cruiser, Toyota Land Cruiser, and Lexus GX470 applications listed below, this kit supports R134a air conditioning systems and uses O-ring inlet and outlet connections at the expansion valve.

Key Features

• Four Seasons A/C Installer Kits product line
• Part number 10310SK
• Compressor oil included: PAG Oil / 46
• Expansion device type: block type
• Expansion valve inlet and outlet: O-ring
• Gasket and seals included
• Kit includes desiccant bag kit, expansion valve, compressor oil, O-ring/gasket pack, cap and valve kit
• Designed for R134a refrigerant systems
• Limited lifetime warranty

Product Details

Four Seasons 10310SK is built as an A/C service kit for compressor replacement work where the expansion valve, oil charge, and sealing components are serviced together. The included PAG 46 oil is specified for R134a systems, while the block-type expansion device and O-ring connections match the listed HVAC configuration. For Toyota 4Runner, Toyota FJ Cruiser, Toyota Land Cruiser, and Lexus GX470 service jobs, this kit helps streamline the parts selection process by grouping the major A/C replacement components under one part number.

This part cross-references Monroe Shocks & Struts (e.g., 550379, MUK10419) for the same application.

What It Helps Address

• Compressor replacement service on R134a A/C systems
• Expansion valve wear or restriction
• Loss of sealing at O-ring and gasket connections
• Moisture control service through the desiccant bag kit
• Incorrect oil type selection during HVAC repair

Installation Notes and Tips

Verify the vehicle’s HVAC configuration before installation, especially the front-kit application notes shown for some Lexus GX470 and Toyota Land Cruiser listings. Confirm refrigerant type, expansion valve style, and connection type before opening the system. Replace seals as part of the service procedure and follow the vehicle manufacturer’s evacuation, vacuum, and recharge specifications.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The 10310SK service kit is organized for direct use in the listed Toyota and Lexus applications and includes the specified compressor oil, sealing components, and expansion valve for A/C compressor replacement service.