Four Seasons 10371SK A/C Compressor Replacement Service Kit

Four Seasons A/C Service Kit for Mazda 3 and Mazda 5

Four Seasons 10371SK is an A/C compressor replacement service kit for select Mazda applications. It combines the core service components needed for a compressor-related repair, including a filter drier, expansion valve, compressor oil, O-ring/gasket pack, and cap and valve kit.

Built for R134a systems, this Four Seasons A/C Installer Kit uses PAG 100 compressor oil and a block-type expansion device with insert O-ring inlet and outlet connections. It is a direct-fit service solution for select Mazda 3 and Mazda 5 models, including 2004-2006 Mazda 3, 2007-2009 Mazda 3, 2009 Mazda 3 Sport, 2006-2007 Mazda 5, 2008-2009 Mazda 5, and 2010 Mazda 5 without ATC.

Key Features

• Part number: 10371SK
• Four Seasons A/C Installer Kits product line
• Includes filter drier, expansion valve, compressor oil, O-ring/gasket pack, and cap and valve kit
• PAG 100 compressor oil included
• R134a refrigerant system application
• Block-type expansion device
• Insert O-ring inlet and outlet connections
• Limited lifetime warranty

Detailed Description

Four Seasons 10371SK is an A/C compressor replacement service kit engineered for Mazda HVAC service work where the compressor circuit needs related components refreshed at the same time. The kit includes the filter drier, expansion valve, compressor oil, necessary O-rings and gaskets, and a cap and valve kit, helping restore proper refrigerant flow and system sealing after compressor replacement. This part cross-references Monroe Shocks & Struts (e.g., 550440, MUK10358) for the same application. Four Seasons 10371SK is listed for select Mazda 3 and Mazda 5 vehicles, making it a focused service option for common Mazda A/C repairs.

What It Helps Address

• Weak or inconsistent cabin cooling after compressor service
• Refrigerant leaks at seals, gaskets, or service connections
• Restricted refrigerant flow through the expansion valve or drier
• Contamination concerns during A/C compressor replacement
• System reassembly needs for select Mazda 3 and Mazda 5 A/C repairs

Installation Notes and Tips

Verify the vehicle’s refrigerant type is R134a before installation. Confirm the existing expansion device style and connection type match the block-type, insert O-ring configuration listed for this kit. Replace the receiver drier and related sealing components during compressor service, and follow proper evacuation, leak testing, and recharge procedures after installation. Fits 2004-2006 Mazda 3, N/A; Fits 2007-2009 Mazda 3, N/A; Fits 2009 Mazda 3 Sport, N/A; Fits 2006-2007 Mazda 5, N/A; Fits 2008-2009 Mazda 5, N/A; Fits 2010 Mazda 5, N/A.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The 10371SK service kit is built for the specified Mazda applications and supports a complete A/C repair approach by combining the major replacement components commonly addressed during compressor service.