Four Seasons 7741NK A/C Compressor and Component Kit

Complete A/C Kit for Toyota Corolla and Matrix

Four Seasons 7741NK is a Complete A/C Kit built around a new compressor for select Toyota Corolla and Toyota Matrix applications. It combines the major air conditioning service components needed for a full system refresh, including the compressor, filter drier, expansion valve, oil, and O-rings.

This Four Seasons Complete A/C Kit line is organized for direct system service, with matched components selected for the specified Toyota fitments and R134a refrigerant systems.

• Complete air conditioning kit with new compressor
• Includes compressor oil and O-rings
• Block-type expansion device with O-ring inlet and outlet connections
• R134a refrigerant type
• Limited lifetime warranty

Key Features

• Part number 7741NK from Four Seasons Complete A/C Kit
• Includes 178322 new compressor, 83029 filter drier, 39274 expansion valve, 59007 oil, and O-rings
• Compressor oil included
• Gaskets and seals included
• Receiver drier/accumulator dimensions: 1.000 in. diameter, 9.000 in. length
• Expansion valve uses block-type design with O-ring inlet and outlet

Detailed Description

Four Seasons 7741NK is a complete A/C compressor kit for 2013 Toyota Corolla, 2013 Toyota Matrix, and 2011-2012 Toyota Corolla models equipped with the TSE14C compressor. It is built for R134a systems and includes the core service parts needed when replacing a worn or failed air conditioning compressor. The kit combines a new compressor with a filter drier, expansion valve, compressor oil, and O-rings to support a full HVAC repair on the specified Toyota applications. Part number 7741NK is also cross-referenced to 520771 and MK1098 for the same application.

Common Problems This Kit Addresses

• Loss of A/C cooling from compressor wear or failure
• Restricted refrigerant flow caused by a failing expansion valve
• Moisture contamination after compressor replacement
• Leaking seals or O-rings in the air conditioning circuit
• System performance issues tied to an aging receiver drier or accumulator

Installation Notes and Tips

Verify the vehicle uses the TSE14C compressor before ordering. This kit is listed for 2011-2012 Toyota Corolla excluding Japan-built models, plus 2013 Toyota Corolla and 2013 Toyota Matrix. Replace the expansion valve and filter drier during compressor service, and confirm the system is clean and properly evacuated before recharging with R134a refrigerant. Use the included oil according to the vehicle and system requirements.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The complete-kit format helps streamline A/C service by supplying the major replacement components in one matched package for the listed Toyota Corolla and Matrix applications.