Four Seasons 5177NK A/C Compressor and Component Kit - Front

Complete A/C Kit for Ford, Mercury Applications

Four Seasons 5177NK is a Complete A/C Kit built for select 2005-2007 Ford and Mercury vehicles with a scroll compressor. It combines the major air conditioning service components needed for a full compressor replacement, including a new compressor, filter drier, expansion valve, oil, and O-rings.

Use this Four Seasons Complete A/C Kit when servicing the air conditioning system on a 2005-2007 Ford Five Hundred, 2005-2007 Ford Freestyle, or 2005-2007 Mercury Montego. The kit is configured for R134a systems and is organized for direct replacement work on the listed applications.

Key Features

• Four Seasons Complete A/C Kit, part number 5177NK
• Includes a new compressor, filter drier, expansion valve, oil, and O-rings
• Designed for R134a refrigerant systems
• Block-type expansion device with insert O-ring inlet and outlet connections
• Receiver drier/accumulator with P-nut inlet and outlet fittings
• Limited lifetime warranty
• Cross-references Monroe Shocks & Struts 520506 and MK1030 for the same application

Product Details

The Four Seasons Complete A/C Kit line is built to simplify major air conditioning repairs by grouping the compressor and related service parts needed for a proper system refresh. Part number 5177NK includes compressor oil and sealing components, along with the filter drier and expansion valve specified for the listed Ford Five Hundred, Ford Freestyle, and Mercury Montego applications. The kit is intended for vehicles equipped with a scroll compressor and uses the correct R134a service configuration.

For fitment, this kit matches 2005 Ford Five Hundred, 2005 Ford Freestyle, 2005 Mercury Montego, 2006-2007 Ford Five Hundred, 2006-2007 Ford Freestyle, and 2006-2007 Mercury Montego. Verify the vehicle’s compressor style and connection details before ordering. Four Seasons 5177NK is a practical choice for restoring the core components of the A/C system on these models.

Common Problems This Kit Can Address

• Compressor failure or seized compressor operation
• Loss of cooling performance after internal A/C wear
• Contaminated or restricted refrigerant flow through the system
• Moisture-related service issues after compressor replacement
• Leaking seals or worn expansion valve components

Installation Notes and Tips

Confirm the vehicle is equipped with a scroll compressor and matches the listed year, make, model, and position before installation. Replace the filter drier and expansion valve during compressor service to help complete the repair correctly. Flush the system as needed, evacuate the refrigerant circuit, and charge with the specified R134a refrigerant amount for the vehicle.

Check all O-ring and fitting connections during assembly, and compare the existing compressor and line connections to the kit components before final installation. Part number 5177NK is listed for 2005-2007 Ford Five Hundred, Ford Freestyle, and Mercury Montego applications with the noted configuration.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The Complete A/C Kit format helps ensure the major replacement parts are matched for the listed applications, supporting a more complete air conditioning repair.