Four Seasons 3553NK A/C Compressor and Component Kit - Front and Rear

Complete A/C Kit for Explorer and Mountaineer

Four Seasons 3553NK is a complete air conditioning kit with a new compressor for select Ford Explorer, Mercury Mountaineer, and Ford Explorer Sport Trac applications. It is built for R134a systems and includes the major components needed to service the front and rear HVAC circuit in one package.

The Four Seasons Complete A/C Kit line is organized for direct replacement work, combining the compressor, accumulator, orifice tube, expansion valve, oil, and O-rings in a single service solution. For 2003-2005 Ford Explorer and Mercury Mountaineer models with a scroll compressor, this kit supports a full A/C system refresh using matched components.

Key Features

• Four Seasons 3553NK complete A/C compressor kit
• Includes a new compressor, accumulator, orifice tube, expansion valve, oil, and O-rings
• Designed for R134a refrigerant systems
• Compressor oil included
• Gaskets and seals included
• Orifice tube style: standard, red, .062 in. diameter
• Receiver drier/accumulator: pad mount, 3.500 in. diameter, 9.750 in. length
• Limited lifetime warranty

Detailed Description

Four Seasons 3553NK is a complete A/C compressor kit for front and rear HVAC applications on 2003-2005 Ford Explorer, 2003-2005 Mercury Mountaineer, and 2003 Ford Explorer Sport Trac models listed with a scroll compressor. This kit is built around a new compressor and includes the accumulator, orifice tube, expansion valve, compressor oil, and O-rings needed for a full system service. The included components are matched for R134a refrigerant systems and support a direct replacement approach for common air conditioning repairs.

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

Common Problems This Kit Addresses

• Loss of cooling from a worn or failed compressor
• Restricted refrigerant flow from a clogged or incorrect orifice tube
• Moisture or contamination issues in the accumulator
• System leaks at aged seals and O-rings
• Poor A/C performance after compressor replacement without matched service parts

Installation Notes and Tips

• Verify vehicle fitment by year, make, model, and compressor style before ordering.
• Flush the system as needed and inspect lines, condenser, and evaporator for contamination or damage.
• Replace the accumulator and expansion components when servicing the compressor to help restore proper refrigerant control.
• Use the specified oil type and refrigerant type for the vehicle system.
• Confirm the pad-mount accumulator dimensions and orifice tube specification during installation.

Quality Assurance

Four Seasons 3553NK carries a limited lifetime warranty. It is a complete A/C kit built for the listed Ford Explorer, Mercury Mountaineer, and Ford Explorer Sport Trac applications with the specified R134a system configuration.