Four Seasons 2821NK A/C Compressor and Component Kit

Complete A/C Kit for Caprice

Restore the air conditioning system on compatible Chevrolet Caprice models with the Four Seasons Complete A/C Kit 2821NK. This kit combines a new compressor with matched service components and refrigerant-system oil for a straightforward repair path on 1986-1989 Caprice applications with an R4 compressor.

Key Features

• Complete Air Conditioning Kit with new compressor
• Includes compressor oil with PAG Oil /150 specification
• Uses R134a refrigerant type
• Includes orifice tube with 0.072 in. diameter, white standard style
• Receiver drier/accumulator included with female O-ring inlet and male insert O-ring outlet
• Limited lifetime warranty

Product Details

Four Seasons Complete A/C Kit 2821NK is built for 1986-1989 Chevrolet Caprice models equipped with an R4 compressor. The kit is organized around the major wear items in the air conditioning circuit, including the compressor, accumulator, orifice tube, oil, and O-rings, so the replacement parts align with the system requirements of the vehicle. The compressor oil is included, and the system is specified for R134a refrigerant service.

Four Seasons Complete A/C Kit is a practical product line for replacing core HVAC components together rather than sourcing each part separately. For Chevrolet Caprice owners, 2821NK provides the key components needed for a compressor-related A/C service on the listed model years.

This part cross-references Four Seasons 2821NK for the same application.

Common Problems This Kit Can Address

• Loss of cooling performance from a worn or failed compressor
• Restricted refrigerant flow caused by a clogged orifice tube
• Moisture or contamination issues in the A/C circuit after compressor failure
• System noise or poor operation related to aging compressor components
• Service needs on a Chevrolet Caprice R4 compressor A/C system

Installation Notes and Tips

Verify the vehicle is a 1986-1989 Chevrolet Caprice with an R4 compressor before ordering. Match the inlet and outlet fitting styles on the accumulator to the existing system, and confirm the refrigerant service plan is R134a. Proper evacuation, leak checking, and oil balancing are important during A/C service to protect the new compressor and restore system performance.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The included components and specified oil type support a complete compressor replacement service for the listed Caprice applications.