Four Seasons 20001SK A/C Compressor Replacement Service Kit

Four Seasons A/C Installer Kit for Classic GM Applications

Four Seasons 20001SK is an A/C compressor replacement service kit built for R134a systems that use a TXV expansion device. It combines the core service parts needed for a compressor replacement on select classic Buick, Chevrolet, Cadillac, Oldsmobile, and Pontiac vehicles, including PAG 150 compressor oil and sealing components.

For restorations and repairs on vehicles such as the Chevrolet Camaro, Chevrolet Nova, and Pontiac Firebird, this kit helps streamline A/C service by grouping the filter drier, expansion valve, oil, O-ring/gasket pack, and cap and valve kit in one package.

Key Features

• Four Seasons A/C Installer Kits line for compressor replacement service work
• Part number 20001SK
• Includes filter drier, expansion valve, compressor oil, O-ring/gasket pack, and cap and valve kit
• PAG Oil /150 included
• R134a refrigerant system application
• TXV expansion device type
• Gaskets and seals included
• Receiver drier/accumulator with 3.000 in diameter, 8.500 in length, and female O-ring inlet and outlet fittings
• Limited Lifetime warranty

Product Details

Four Seasons 20001SK is a service-focused A/C compressor replacement kit for older GM platforms that require a thermal expansion valve setup. The kit is organized around the parts commonly replaced during compressor service, helping maintain proper refrigerant flow and sealing integrity in R134a air conditioning systems. It is listed for a wide range of 1968-1974 applications, including Buick Regal and Riviera, Chevrolet Bel Air, Caprice, Camaro, El Camino, Impala, Monte Carlo, Nova, and Corvette, plus Cadillac Eldorado, DeVille, and Fleetwood, Oldsmobile Cutlass, Delta 88, Omega, Toronado, and Pontiac Bonneville, Catalina, Firebird, Grand Prix, and LeMans.

This part cross-references Monroe Shocks & Struts (e.g., MUK20286, PK0259) for the same application.

Common Problems This Kit Addresses

• Compressor replacement service on R134a A/C systems
• Leaking or hardened O-rings and gaskets
• Restricted refrigerant flow through a worn expansion valve
• Contaminated or moisture-exposed receiver drier/accumulator service
• Incorrect oil fill during A/C compressor replacement

Installation Notes and Fitment

Compatible With classic GM A/C systems that use a TXV expansion valve and R134a refrigerant. Fitment includes: Fits 1973-1974 Buick Regal, N/A; Fits 1972 Buick Riviera, N/A; Fits 1971 Buick Riviera, N/A; Fits 1968-1969 Buick Riviera, N/A; Fits 1968-1970 Buick Skylark, N/A; Fits 1973-1974 Chevrolet Nova, N/A; Fits 1971-1973 Chevrolet Camaro, N/A; Fits 1968-1970 Chevrolet Camaro, N/A; Fits 1970-1973 Chevrolet El Camino, N/A; Fits 1973 Chevrolet Malibu, N/A; Fits 1970-1973 Chevrolet Monte Carlo, N/A; Fits 1970-1974 Chevrolet Bel Air, N/A; Fits 1968-1972 Chevrolet Bel Air, N/A; Fits 1970-1972 Chevrolet Caprice, N/A; Fits 1968-1969 Chevrolet Caprice, N/A; Fits 1970-1972 Chevrolet Impala, N/A; Fits 1968-1969 Chevrolet Impala, N/A; Fits 1968-1972 Chevrolet Corvette, N/A; Fits 1973-1974 Oldsmobile Omega, N/A; Fits 1968-1973 Oldsmobile 98, N/A; Fits 1968-1973 Oldsmobile Delta 88, N/A; Fits 1968-1972 Oldsmobile Cutlass, N/A; Fits 1968-1972 Oldsmobile Cutlass Supreme, N/A; Fits 1968-1972 Oldsmobile Toronado, N/A; Fits 1971-1973 Pontiac Bonneville, N/A; Fits 1971-1973 Pontiac Catalina, N/A; Fits 1968-1973 Pontiac Firebird, N/A; Fits 1973 Pontiac Grand Prix, N/A; Fits 1973 Pontiac LeMans, N/A; Fits 1972 Cadillac Eldorado, N/A; Fits 1970-1972 Cadillac Eldorado, N/A; Fits 1969 Cadillac Eldorado, N/A; Fits 1968 Cadillac DeVille, N/A; Fits 1968 Cadillac Fleetwood, N/A; Fits 1968 Oldsmobile Delta 88, N/A.

Verify the vehicle’s A/C configuration, expansion valve style, and service requirements before installation. Use the included PAG 150 compressor oil and sealing components during compressor replacement service.

Quality Assurance

Four Seasons backs this kit with a Limited Lifetime warranty.