Four Seasons 30037SK A/C Compressor Replacement Service Kit

Four Seasons 30037SK A/C Service Kit

Restore the A/C system on compatible GM trucks and SUVs with the Four Seasons 30037SK A/C Installer Kit. This A/C compressor replacement service kit includes the core service components needed for a proper compressor replacement on R134a systems, with PAG 150 compressor oil included.

Compatible With Chevrolet Blazer, GMC Jimmy, Chevrolet C/K and R/V Series trucks, and Suburban applications from 1984-1991, this kit is built around the service parts commonly replaced during compressor work. Four Seasons A/C Installer Kits are organized to simplify the repair process and help match the original system requirements.

Key Features

• Part number 30037SK from Four Seasons A/C Installer Kits
• Includes accumulator, orifice tube kit, compressor oil, O-ring/gasket pack, and cap and valve kit
• PAG Oil /150 included for R134a A/C systems
• Gaskets and seals included
• Receiver drier/accumulator dimensions: 3.500 in. diameter, 9.000 in. length
• Accumulator inlet fitting: 0.750 in. female O-ring
• Accumulator outlet fitting: 0.750 in. male insert O-ring
• Limited lifetime warranty

Product Details

The Four Seasons 30037SK is an A/C compressor replacement service kit for vehicles using R134a refrigerant. It combines the accumulator, orifice tube kit, compressor oil, and sealing components needed for service work on older GM HVAC systems. This kit cross-references Monroe Shocks & Struts (e.g., 550946, MUK30088) for the same application.

Use this kit when servicing compatible Chevrolet and GMC models such as the Chevrolet Blazer, GMC Jimmy, Chevrolet C10/C20/K10/K20/K30, and related Suburban and R/V Series applications. The 30037SK part number is also a useful reference when sourcing the correct A/C service kit for these GM platforms.

Common Repair Uses

• Replacing a worn or contaminated A/C compressor service setup
• Refreshing the accumulator and sealing components during compressor service
• Addressing restricted refrigerant flow through the orifice tube
• Restoring proper oil charge with PAG 150 compressor oil
• Servicing R134a A/C systems on older Chevrolet and GMC vehicles

Installation Notes

Verify refrigerant type, fitting style, and accumulator dimensions before installation. This kit is for R134a systems and includes a female O-ring inlet and male insert O-ring outlet on the accumulator. Follow standard A/C service procedures, evacuate the system properly, and replace all sealing points during compressor replacement to help prevent leaks.

Body fitment includes 1984-1991 Buick Regal; 1985-1991 GMC Jimmy; 1985-1986 Chevrolet C10, C15, C20, C30, K10, K20, K30, and related Suburban applications; 1987-1991 Chevrolet Blazer and GMC R/V Suburban models; and additional Chevrolet/GMC C/K and R/V Series trucks listed for the same application.

Quality Assurance

Four Seasons backs this A/C service kit with a limited lifetime warranty. The 30037SK is built for direct service use on confirmed applications and supports a clean, organized compressor replacement on compatible Chevrolet and GMC HVAC systems.