Four Seasons 30105SK A/C Compressor Replacement Service Kit

Four Seasons A/C Installer Kit for GM HD Trucks

The Four Seasons 30105SK A/C Installer Kit is built for R134a service on select Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 models from 2002-2004. It combines the core replacement parts needed for an A/C compressor service in one package, including PAG 46 compressor oil, an accumulator, an orifice tube kit, and sealing components.

Four Seasons A/C Installer Kits are organized for compressor replacement service work, helping streamline the parts selection process for GM heavy-duty truck A/C repairs. Part number 30105SK is listed for direct application coverage on the vehicles shown below.

Key Features

• Part number: 30105SK
• Brand: Four Seasons A/C Installer Kits
• Compressor oil included: PAG Oil / 46
• Refrigerant type: R134a
• Includes accumulator, orifice tube kit, compressor oil, and O-ring kit
• Gaskets and seals included
• Accumulator dimensions: 3.500 in. diameter, 8.000 in. length
• Accumulator inlet and outlet fitting type: P-Nut fitting
• Limited lifetime warranty

Detailed Description

The Four Seasons 30105SK A/C Compressor Replacement Service Kit is a service-focused solution for GM HD truck HVAC repairs. It is configured with PAG 46 oil for R134a systems and includes the accumulator, orifice tube kit, and sealing components needed during compressor replacement service. For buyers searching for a 2002-2004 Chevrolet Silverado 2500 HD A/C compressor replacement service kit or a 2002-2004 GMC Sierra 3500 HVAC service kit, this part number matches the listed applications and service requirements.

This part cross-references 551138 and MUK30021 for the same application. The Four Seasons A/C Installer Kits line is organized around application-specific A/C service parts, making it easier to source the correct components for compressor-related repairs on Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 trucks.

What It Helps Address

• Compressor replacement service on R134a A/C systems
• Loss of cooling after compressor failure
• Contaminated or worn accumulator components
• Restricted refrigerant flow at the orifice tube
• Sealing issues at O-rings and gaskets during A/C service

Installation Notes and Tips

Verify the vehicle’s A/C system uses R134a and PAG 46 oil before installation. Confirm accumulator fitting style and clocking against the vehicle notes, especially on 2004 models with the P-nut fitting and 2:00 clocking reference. Replace the listed sealing components during compressor service and follow the vehicle service procedure for evacuation, oil balancing, and recharge.

• Fits 2004 Chevrolet Silverado 2500 HD, N/A
• Fits 2004 Chevrolet Silverado 3500, N/A
• Fits 2004 GMC Sierra 2500 HD, N/A
• Fits 2004 GMC Sierra 3500, N/A
• Fits 2003 Chevrolet Silverado 2500 HD, N/A
• Fits 2003 Chevrolet Silverado 3500, N/A
• Fits 2003 GMC Sierra 2500 HD, N/A
• Fits 2003 GMC Sierra 3500, N/A
• Fits 2002 Chevrolet Silverado 2500 HD, N/A
• Fits 2002 Chevrolet Silverado 3500, N/A
• Fits 2002 GMC Sierra 2500 HD, N/A
• Fits 2002 GMC Sierra 3500, N/A

Quality Assurance

Four Seasons backs this A/C service kit with a limited lifetime warranty. Part number 30105SK is listed for the specified GM truck applications and is built for compressor replacement service on R134a systems.