Four Seasons 20288SK A/C Compressor Replacement Service Kit

Four Seasons 20288SK A/C Service Kit

Four Seasons 20288SK is an A/C compressor replacement service kit for R134a systems. It bundles the core service components needed for a compressor replacement on select Buick, Oldsmobile, and Pontiac applications, including the accumulator, orifice tube kit, compressor oil, O-ring/gasket pack, and cap and valve kit.

Built for 1998-1999 Buick LeSabre, 1998-1999 Buick Park Avenue, 1998-1999 Oldsmobile 88, 1998-1999 Oldsmobile LSS, and 1998-1999 Pontiac Bonneville, this Four Seasons A/C Installer Kits product supports a more complete HVAC service on the vehicles listed below.

Key Features

• Part number 20288SK from Four Seasons A/C Installer Kits
• For R134a refrigerant systems
• Includes PAG Oil /150 compressor oil
• Accumulator, orifice tube kit, O-ring/gasket pack, and cap and valve kit included
• Receiver drier/accumulator measures 3.500 in. diameter and 8.000 in. length
• Male insert O-ring inlet and outlet fittings
• Limited Lifetime warranty

Product Details

Four Seasons 20288SK is an A/C compressor replacement service kit built around the service parts commonly replaced during compressor work. The kit includes the accumulator, orifice tube kit, compressor oil, O-ring/gasket pack, and cap and valve kit, helping restore the refrigerant circuit with the specified R134a setup. The accumulator uses male insert O-ring inlet and outlet fittings, with a 3.500-inch diameter and 8.000-inch length for the listed application.

This part cross-references Monroe Shocks & Struts (e.g., 550839, MUK20001) for the same application. If you are servicing a 1998-1999 Buick LeSabre, 1998-1999 Buick Park Avenue, or a 1998-1999 Pontiac Bonneville, 20288SK provides the matched service-kit format for those vehicles. The same applies to 1998-1999 Oldsmobile 88 and 1998-1999 Oldsmobile LSS.

What It Helps Address

• Compressor replacement service on R134a A/C systems
• Refrigerant circuit contamination from worn seals and gaskets
• Restricted flow at the orifice tube
• Loss of system efficiency after A/C component replacement
• Accumulator replacement needs on the listed Buick, Oldsmobile, and Pontiac models

Installation Notes

Verify refrigerant type, fitting style, and accumulator dimensions before installation. Replace the listed seals and gaskets during service, and use the included PAG Oil /150 compressor oil according to the vehicle’s A/C service procedure. Confirm the vehicle application by year, make, and model before ordering.

Quality Assurance

Four Seasons backs part number 20288SK with a Limited Lifetime warranty.

• Fits 1998-1999 Buick LeSabre, N/A
• Fits 1998-1999 Buick Park Avenue, N/A; w/ Evaporator Mounting Orifice Tube
• Fits 1998-1999 Oldsmobile 88, N/A
• Fits 1998-1999 Oldsmobile LSS, N/A
• Fits 1998-1999 Pontiac Bonneville, N/A