Four Seasons 10300SK A/C Compressor Replacement Service Kit

Four Seasons 10300SK A/C Service Kit

The Four Seasons 10300SK A/C Installer Kit is built for compressor replacement service on select Subaru and Toyota applications. It combines the core components needed for an A/C service job, including PAG 46 compressor oil, an expansion valve, a desiccant bag kit, and sealing components for R134a systems.

As part of the Four Seasons A/C Installer Kits line, this kit is organized for service work where the compressor circuit is being opened and the system needs the related replacement parts for reassembly and refrigerant service.

Key Features

• Part number 10300SK from Four Seasons
• For A/C compressor replacement service on R134a systems
• Includes compressor oil with PAG Oil / 46 specification
• Expansion valve uses block type construction with O-ring inlet and outlet connections
• Includes desiccant bag kit, expansion valve, compressor oil, O-ring/gasket pack, cap and valve kit
• Gaskets and seals included
• Receiver drier/accumulator dimensions: 1.000 in. diameter and 9.000 in. length
• Limited lifetime warranty

Product Details

The Four Seasons 10300SK is an A/C compressor replacement service kit for vehicles using R134a refrigerant. It includes PAG 46 compressor oil and the service components commonly replaced when the air conditioning system is opened for compressor work. The kit is listed for 2005-2009 Subaru Legacy, 2005-2009 Subaru Outback, 2006 Subaru B9 Tribeca, and 2003 Toyota Echo with factory air. This part cross-references Monroe Shocks & Struts (e.g., 550369, MUK10429) for the same application.

Common Service Issues

• Loss of cooling after compressor replacement service
• Contaminated or depleted A/C oil during system repair
• Leaking O-rings or gaskets at opened A/C connections
• Moisture intrusion after the system has been exposed
• Expansion valve wear affecting refrigerant flow control

Installation Notes and Tips

• Verify vehicle-specific A/C system requirements before installation.
• Replace sealing components any time the system is opened for compressor service.
• Use the specified PAG 46 oil for the listed application.
• Evacuate and recharge the system with the correct R134a refrigerant charge after service.
• Confirm fitment for 2005-2009 Subaru Legacy, 2005-2009 Subaru Outback, 2006 Subaru B9 Tribeca, and 2003 Toyota Echo with factory air.

Quality Assurance

Four Seasons backs this A/C service kit with a limited lifetime warranty. The 10300SK is built for direct service use in the listed Subaru Legacy, Subaru Outback, Subaru B9 Tribeca, and Toyota Echo applications.