Four Seasons 2174NK A/C Compressor and Component Kit

Complete A/C Kit for Cadillac DeVille and Seville

Restore air conditioning performance with the Four Seasons Complete A/C Kit, Part Number 2174NK. This complete air conditioning kit with a new compressor is built for select Cadillac DeVille and Cadillac Seville applications that use an HD6 compressor and a condenser mounting orifice tube.

The Four Seasons Complete A/C Kit line brings together the major components needed for a focused A/C service, including a new compressor, accumulator, orifice tube, compressor oil, and O-rings. It is set up for R134a refrigerant systems and uses PAG Oil /150 for compressor lubrication.

Key Features

• Four Seasons 2174NK complete A/C compressor kit
• Includes a new compressor, accumulator, orifice tube, oil, and O-rings
• Designed for R134a refrigerant systems
• PAG Oil /150 included
• Uses a standard yellow/white orifice tube with .062 in. diameter
• Receiver drier/accumulator features male insert O-ring inlet and outlet fittings
• Limited lifetime warranty

Product Details

Part Number 2174NK is a complete air conditioning kit with a new compressor for 1994-1997 Cadillac DeVille and 1994-1996 Cadillac Seville applications. It is specified for vehicles with an HD6 compressor and condenser mounting orifice tube. The kit includes Four Seasons components matched for this application, making it a direct service solution for Cadillac DeVille A/C repair and Cadillac Seville compressor replacement work.

This Four Seasons Complete A/C Kit is built around the core service parts needed to address compressor-related A/C failures while maintaining the correct refrigerant and oil type for the system. The accumulator measures 3.500 inches in diameter and 8.000 inches in length, with male insert O-ring fittings on both inlet and outlet sides.

This part cross-references Four Seasons 2174NK for the same application.

Common A/C Problems This Kit Can Address

• Loss of cooling from a worn or failed compressor
• Contaminated or incorrect compressor oil in the system
• Restricted refrigerant flow related to the orifice tube
• Moisture control issues tied to accumulator replacement
• Seal leakage at A/C connection points

Installation Notes

Verify the vehicle uses an HD6 compressor and condenser mounting orifice tube before installation. Flush the system as needed, replace the accumulator and orifice tube during compressor service, and confirm the correct PAG Oil /150 charge for the application. Always inspect O-ring sealing surfaces and evacuate the system before recharging with R134a refrigerant.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. Part Number 2174NK is engineered as a complete A/C service solution for select Cadillac DeVille and Cadillac Seville models, with application-specific components matched to the listed fitment.