Four Seasons 4188N A/C Compressor and Component Kit

Four Seasons 4188N PAC-Kit Overview

Four Seasons 4188N is a PAC-Kit with a new compressor for factory air systems that use a York compressor. It is built for classic Ford Mustang, Mercury Cougar, and Mercury Montego applications from the early 1970s, with fitment matched to the original HVAC layout.

Key Features

• Part number 4188N from Four Seasons
• PAC-Kit w/ New Compressor for York compressor applications
• Direct fitment for factory air-equipped vehicles listed below
• Application-specific coverage for classic Ford and Mercury HVAC systems
• Fits 1971-1973 Ford Mustang, N/A
• Fits 1972 Mercury Cougar, N/A
• Fits 1971 Mercury Montego, N/A

Detailed Description

This Four Seasons PAC-Kit w/ New Compressor is intended for owners restoring or servicing original air conditioning systems on a 1971-1973 Ford Mustang, 1972 Mercury Cougar, or 1971 Mercury Montego with a York compressor and factory air. The 4188N part number identifies the compressor kit application for these specific vehicles, helping match the replacement to the original HVAC configuration.

Four Seasons PAC-Kit w/ New Compressor line items are organized for vehicle-specific A/C service, making it easier to source the correct compressor kit for classic Ford Mustang and Mercury models. The 4188N listing is tied to the factory air setup and York compressor design used in these applications.

What It Is Used For

• Replacing a worn or failed A/C compressor in a York-based system
• Restoring cooling performance in a classic Ford Mustang
• Servicing factory air systems in a Mercury Cougar
• Addressing compressor noise, seizure, or loss of A/C operation
• Supporting repair of original HVAC components in a Mercury Montego

Installation Notes and Tips

Verify the vehicle has factory air and a York compressor before ordering. Confirm the model year and application details against the fitment list, since this kit is specific to 1971-1973 Ford Mustang, 1972 Mercury Cougar, and 1971 Mercury Montego configurations. For best results, inspect the rest of the A/C system for wear before installing the replacement compressor.

Quality Assurance

Four Seasons is a recognized HVAC parts brand with application-specific coverage for classic vehicle air conditioning service. Part number 4188N is cataloged for the exact factory air and York compressor applications shown above.