Four Seasons 2621NK A/C Compressor and Component Kit

Complete A/C Kit for Nissan Maxima

Restore the air conditioning system on select Nissan Maxima models with the Four Seasons Complete A/C Kit, part number 2621NK. This kit combines the major service components needed for a complete A/C repair, including a new compressor, filter drier, expansion valve, oil, and O-rings.

Built for R134a systems, this Four Seasons Complete A/C Kit is a direct-fit solution for 2003-2008 Nissan Maxima applications with a DKS17D compressor. It is a practical choice when replacing worn A/C components in a system that needs more than a compressor alone.

Key Features

• Four Seasons Complete A/C Kit, part number 2621NK
• Includes new compressor, filter drier, expansion valve, oil, and O-rings
• Designed for R134a refrigerant systems
• Compressor oil included
• Block-type expansion device with O-ring inlet and insert O-ring outlet
• Receiver drier/accumulator with pad-mount inlet and outlet fittings
• Limited lifetime warranty

Product Details

The Four Seasons 2621NK Complete A/C Kit is assembled for service work on Nissan Maxima vehicles that use the DKS17D compressor. The kit includes the core replacement parts needed to address compressor failure and related system wear, helping simplify a full A/C repair. Four Seasons Complete A/C Kit 2621NK is intended for 2003-2008 Nissan Maxima models, with notes for 2003 vehicles built from 12/31/02 and 2007-2008 models with a 5-1/4 inch diameter pulley.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Repair Issues

• Loss of cabin cooling from compressor wear or seizure
• Restricted refrigerant flow from a failing expansion valve
• Moisture contamination after A/C system service
• Reduced cooling performance from a worn receiver drier
• Leaks at aged O-rings and seals

Installation Notes and Tips

Verify compressor style, pulley diameter, and vehicle build date before installation. Replace the receiver drier and expansion valve when servicing the system, and evacuate the A/C system before recharging with the correct refrigerant and oil specification. Confirm all O-ring and pad-mount connections are seated properly to help prevent leaks.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The 2621NK kit is built as a complete air conditioning service package for select Nissan Maxima applications, making it a focused replacement option for technicians and DIY repairs alike.