Four Seasons 20066SK A/C Compressor Replacement Service Kit
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Four Seasons
 A/C Installer Kits

Four Seasons 20066SK A/C Compressor Replacement Service Kit

Brand Four Seasons 20066SK
Cap Tube Lgth IN 9.250
Compressor Oil Included Included
Compressor Oil Type Pag oil /100
Expansion Device Type Txv
Gasket / Seals? Included
Kit Includes Filter drier, expansion valve, compressor oil, o-ring/gasket pack
Receiver Drier/Accumulator Diameter IN 1.563
Receiver Drier/Accumulator Inlet Fitting Type Pad mount
Receiver Drier/Accumulator Length IN 9.000
Receiver Drier/Accumulator Outlet Fitting Size IN .402
Receiver Drier/Accumulator Outlet Fitting Type Pad mount
Refrigerant Type R134a
Type A/c service kits
Warranty Limited lifetime
Product line A/C Installer Kits
Fits Nissan · 8 vehicles

Service kit. Includes the core A/C replacement components needed for compressor-related repairs.

R134a system use. Configured with PAG oil and a TXV expansion device for modern refrigerant service.

Sealing components included. Comes with gaskets, O-rings, and cap and valve pieces for a complete refresh.

Cross-references Four Seasons 20066SK, 550444 and MUK20221 for the same application. See all 4.

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Overview

Four Seasons 20066SK is an A/C compressor replacement service kit for select Nissan applications. It brings together the core service components needed when renewing the air conditioning system, with fitment for 2003-2004 Nissan Frontier and 2003-2004 Nissan Xterra.

Key Features

  • Includes a filter drier, expansion valve, compressor oil, O-ring and gasket pack, and cap and valve kit.
  • Uses PAG oil formulated for R134a A/C systems.
  • TXV expansion device type for service work that requires metered refrigerant control.
  • Gaskets and seals are included for sealing points in the service assembly.
  • Four Seasons 20066SK is part of the A/C Installer Kits line.

Product Details

This Four Seasons A/C service kit is built around the components commonly replaced during compressor-related A/C repairs. The included filter drier, TXV, oil, and sealing components help restore system serviceability when the original parts are worn, contaminated, or no longer sealing properly. It is a practical choice for Nissan Frontier and Nissan Xterra A/C service where the system is configured for R134a refrigerant.

This part cross-references Interchanges (e.g., 550444, MUK20221) for the same application. Part number 20066SK is also identified as Four Seasons 20066SK.

What It Helps Address

  • Loss of cooling performance after compressor service
  • Refrigerant leaks at seals, gaskets, or service connections
  • Restricted refrigerant flow through a worn expansion valve
  • Moisture or contamination concerns in the A/C circuit
  • Incomplete A/C refreshes when multiple wear items need replacement

Installation Notes

Verify the vehicle’s refrigerant type, service layout, and component configuration before installation. Replace sealing points carefully and follow proper evacuation, charging, and leak-check procedures after assembly. Confirm the pad-mount drier and TXV details match the original system before beginning service.

Quality Assurance

Four Seasons lists this kit with a limited lifetime warranty. Part number 20066SK is supported by the Four Seasons A/C Installer Kits product line.

Related reading

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2004NissanFrontier3.3LV6Includes: Filter Drier, Expansion Valve, Compressor Oil, Necessary O-Rings and Gaskets, Cap and Valve Kit; A/C Installer Kits
2004NissanFrontier2.4LL4Includes: Filter Drier, Expansion Valve, Compressor Oil, Necessary O-Rings and Gaskets, Cap and Valve Kit; A/C Installer Kits
2004NissanXterra3.3LV6Includes: Filter Drier, Expansion Valve, Compressor Oil, Necessary O-Rings and Gaskets, Cap and Valve Kit; A/C Installer Kits
2004NissanXterra2.4LL4Includes: Filter Drier, Expansion Valve, Compressor Oil, Necessary O-Rings and Gaskets, Cap and Valve Kit; A/C Installer Kits
2003NissanFrontier3.3LV6Includes: Filter Drier, Expansion Valve, Compressor Oil, Necessary O-Rings and Gaskets, Cap and Valve Kit; A/C Installer Kits
2003NissanFrontier2.4LL4Includes: Filter Drier, Expansion Valve, Compressor Oil, Necessary O-Rings and Gaskets, Cap and Valve Kit; A/C Installer Kits
2003NissanXterra3.3LV6Includes: Filter Drier, Expansion Valve, Compressor Oil, Necessary O-Rings and Gaskets, Cap and Valve Kit; A/C Installer Kits
2003NissanXterra2.4LL4Includes: Filter Drier, Expansion Valve, Compressor Oil, Necessary O-Rings and Gaskets, Cap and Valve Kit; A/C Installer Kits
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 20066SK550444MUK20221PK0144