Four Seasons 20158SK A/C Compressor Replacement Service Kit

Four Seasons A/C Installer Kit for Mazda 6

The Four Seasons 20158SK A/C Compressor Replacement Service Kit is built for 2003-2008 Mazda 6 applications that need a complete service-focused replacement package. It combines the core components commonly replaced during compressor service, including PAG 46 compressor oil, an expansion valve, and sealing components for R134a systems.

As part of the Four Seasons A/C Installer Kits line, this kit is organized for compressor replacement work on the Mazda 6 with the parts needed to address system contamination control and refrigerant circuit sealing during service. The 20158SK is a direct-fit service kit for R134a-equipped HVAC systems using a block-type expansion device.

Key Features

• Fits 2003-2008 Mazda 6, N/A
• Four Seasons part number 20158SK
• Includes compressor oil with PAG Oil / 46 specification
• Includes block-type expansion valve with insert O-ring inlet and outlet connections
• Includes desiccant bag kit, O-ring/gasket pack, cap and valve kit
• Configured for R134a refrigerant systems
• Limited lifetime warranty

Detailed Description

The Four Seasons 20158SK is an A/C Compressor Replacement Service Kit for Mazda 6 models from 2003 through 2008. It is built around the components typically serviced when replacing an A/C compressor, including compressor oil, an expansion valve, sealing parts, and desiccant support for the refrigerant circuit. The kit is intended for R134a systems and uses a block-type expansion device with insert O-ring inlet and outlet connections.

This Four Seasons A/C Installer Kits product line focuses on service-ready HVAC replacement parts for compressor-related repairs. If you are servicing a 2003-2008 Mazda 6 A/C system, the 20158SK provides the specified components in one application-specific kit. This part cross-references Monroe Shocks & Struts (e.g., 550654, MUK20129) for the same application.

What It Helps Address

• Compressor replacement service on a Mazda 6 A/C system
• Refrigerant circuit sealing concerns at O-ring and gasket interfaces
• Expansion valve replacement during HVAC repair
• Moisture control service with the included desiccant bag kit
• Oil replenishment after compressor service with PAG 46 oil

Installation Notes and Tips

Verify the vehicle uses an R134a refrigerant system before installation. Confirm the expansion device style and connection type match the original setup, since this kit uses a block-type expansion valve with insert O-ring inlet and outlet ports. Replace and lubricate sealing surfaces according to standard A/C service procedures, and evacuate and recharge the system to the correct specification after repairs.

Quality Assurance

Four Seasons backs the 20158SK with a limited lifetime warranty. The kit is built for service use on confirmed Mazda 6 applications and includes the specified compressor oil, expansion valve, desiccant bag kit, and sealing components needed for A/C compressor replacement work.