Four Seasons 1045NK A/C Compressor and Component Kit

Complete A/C Kit for GM V5 Applications

Four Seasons 1045NK is a Complete A/C Kit built for select GM vehicles with the V5 compressor. It combines the major air conditioning service components needed for a full compressor replacement, including a new compressor, accumulator, orifice tube, oil, and O-rings.

Compatible With 1997-1999 Buick Regal, 1998-1999 Chevrolet Lumina, 1998-1999 Chevrolet Monte Carlo, 1998 Oldsmobile Intrigue, and 1997-1998 Pontiac Grand Prix applications that use the V5 compressor.

Key Features

• Four Seasons Complete A/C Kit, part number 1045NK
• Includes compressor oil with PAG Oil /150 specification
• Uses R134a refrigerant system requirements
• Includes a white standard orifice tube with 0.072 in. diameter
• Accumulator features a 3.500 in. diameter and 8.000 in. length
• Gaskets and seals are included
• Limited Lifetime warranty

Product Details

The Four Seasons Complete A/C Kit line is built to simplify air conditioning service by grouping the core replacement parts needed for a compressor-related repair. This 1045NK kit includes a new compressor, accumulator, orifice tube, oil, and O-rings, making it a direct-fit service solution for listed Buick, Chevrolet, Oldsmobile, and Pontiac vehicles equipped with the V5 compressor. The kit is configured for R134a systems and uses an accumulator with a male insert O-ring inlet fitting and P-nut outlet fitting.

This part cross-references 520215 for the same application. Four Seasons 1045NK is a practical choice when servicing a failing A/C compressor on a 1998 Chevrolet Lumina, 1998 Chevrolet Monte Carlo, or other listed GM models.

Common Problems This Kit Can Address

• Loss of cooling after compressor failure
• Contaminated or incorrect compressor oil during A/C repair
• Restricted refrigerant flow from a worn or incorrect orifice tube
• Moisture or debris concerns in the accumulator
• Leaking O-rings and seals at service connections

Installation Notes and Tips

Before installation, verify the vehicle uses the V5 compressor and matches the listed fitment. Replace the accumulator and orifice tube during compressor service, and confirm the system is clean before charging with R134a refrigerant. Use the included PAG Oil /150 specification as directed by the vehicle and system requirements, and inspect all sealing surfaces before assembly.

Quality Assurance

Four Seasons backs this Complete A/C Kit with a Limited Lifetime warranty. The kit is assembled for the listed GM applications to support a complete compressor replacement service with the specified components and refrigerant type.