Four Seasons 30039SK A/C Compressor Replacement Service Kit

Four Seasons A/C Installer Kit for GM Trucks and SUVs

Restore the air conditioning system with the Four Seasons 30039SK A/C Compressor Replacement Service Kit. This A/C service kit includes the core replacement components needed for a front and rear system refresh, with PAG 150 compressor oil, seals, and service parts selected for R134a applications.

Compatible With Chevrolet Blazer, GMC Jimmy, Chevrolet Suburban, and GMC Suburban models across 1985-1991 applications, this kit is built for common compressor replacement jobs where the accumulator, orifice tube, and expansion valve are serviced together. Four Seasons 30039SK is a practical choice for GM full-size SUV A/C repairs that require matched service components.

Key Features

• Part number: 30039SK
• A/C Compressor Replacement Service Kit for R134a systems
• Includes compressor oil with PAG Oil /150 specification
• Includes accumulator, orifice tube, rear expansion valve, O-ring/gasket pack, and cap and valve kit
• Standard white orifice tube with 0.072 in. diameter
• Accumulator features 3.500 in. diameter, 9.000 in. length, female O-ring inlet, and male insert O-ring outlet
• Gaskets and seals included
• Limited Lifetime warranty

Detailed Description

The Four Seasons A/C Installer Kits line is built around complete service coverage for compressor replacement work. The 30039SK kit brings together the accumulator, orifice tube, rear expansion valve, compressor oil, and sealing components needed to service the refrigerant circuit during an A/C overhaul. It is specified for R134a systems and uses PAG 150 oil, making it a direct-fit service solution for older GM truck and SUV platforms that use this configuration.

This part cross-references Monroe Shocks & Struts (e.g., MUK30086, PK0146) for the same application. For search relevance, this kit is commonly sought for Chevrolet Blazer A/C repair, GMC Jimmy compressor replacement service, and Chevrolet Suburban or GMC Suburban front and rear A/C system maintenance.

What It Helps Address

• Loss of cooling after compressor replacement
• Restricted refrigerant flow through a worn orifice tube
• Moisture contamination in the A/C system after component failure
• Leaking seals or O-rings in the refrigerant circuit
• Uneven A/C performance in front and rear HVAC systems

Installation Notes and Tips

Before installation, verify refrigerant type, oil specification, and accumulator dimensions against the vehicle’s original A/C setup. Replace the accumulator and sealing components whenever the system has been opened, and confirm the orifice tube orientation and expansion valve placement during assembly. Proper evacuation and recharge procedures are required after service to help ensure stable system operation.

Quality Assurance

Four Seasons backs this kit with a Limited Lifetime warranty. The 30039SK is engineered as an A/C service kit for repair work on Chevrolet and GMC applications where matched replacement parts are needed for a complete compressor-related service.