Four Seasons 1437NK A/C Compressor and Component Kit

Complete A/C Kit for V5 Compressor Applications

Four Seasons 1437NK is a complete air conditioning kit built for select GM vehicles with a V5 compressor setup. It combines a new compressor, accumulator, orifice tube, compressor oil, and O-rings to support a full A/C service on R134a systems.

This Four Seasons Complete A/C Kit is a practical replacement choice for 1994-1997 Chevrolet Lumina, 1995-1997 Chevrolet Monte Carlo, 1995-1996 Buick Century, and other listed GM applications. Part number 1437NK is organized for direct service work on vehicles that use an orifice tube expansion device.

Key Features

• Complete air conditioning kit with new compressor
• Includes PAG oil /150 for R134a systems
• Uses a standard white orifice tube with 0.072 in. diameter
• Accumulator included with female O-ring inlet and male insert O-ring outlet
• Gaskets and seals included
• Limited lifetime warranty
• Four Seasons 1437NK for select GM A/C repairs

Product Details

Four Seasons Complete A/C Kit 1437NK is built around a new compressor and the supporting service components needed for a proper A/C refresh. The kit includes compressor oil, an accumulator, an orifice tube, and O-rings, making it a focused solution for vehicles using an orifice tube style HVAC system. The included PAG Oil /150 is specified for R134a refrigerant applications, and the accumulator dimensions and fitting styles are listed for accurate matching during replacement.

Compatible With 1994-1997 Chevrolet Lumina, 1995-1997 Chevrolet Monte Carlo, 1995-1996 Buick Century, 1994-1996 Oldsmobile Cutlass Ciera, 1994-1996 Oldsmobile Cutlass Supreme, 1994-1996 Pontiac Grand Prix, 1994-1995 Buick Regal, 1994-1995 Oldsmobile Cutlass, and 1994 Oldsmobile Cutlass Cruiser. This part cross-references Monroe Shocks & Struts (e.g., 520220, MK1090) for the same application.

Common A/C Problems This Kit Can Address

• Loss of cooling performance from a worn or failed compressor
• Restricted refrigerant flow caused by a deteriorated orifice tube
• Moisture or contamination issues in the accumulator
• Leaks at aged O-rings and seals during A/C service
• System service needs after compressor replacement on R134a vehicles

Installation Notes and Tips

Verify compressor style, refrigerant type, and fitting configuration before installation. This kit is listed for vehicles with a V5 compressor and an orifice tube expansion device, so matching the existing system layout is important. Flush the system as needed, replace the accumulator during compressor service, and follow the vehicle service procedure for oil balancing and refrigerant charging.

For fitment-specific searches, this kit is commonly referenced for 1994-1997 Chevrolet Lumina A/C repair, 1995-1997 Chevrolet Monte Carlo compressor replacement, and 1995-1996 Buick Century complete A/C service.

Quality Assurance

Four Seasons 1437NK is backed by a limited lifetime warranty. The Complete A/C Kit line is organized to provide the major service components in one application-specific package for select GM HVAC repairs.