Four Seasons 5556N A/C Compressor Kit

Four Seasons 5556N A/C Compressor Kit

Four Seasons 5556N is a PAC-Kit with new compressor for select Ford Mustang applications. It is built for 1999-2001 Mustang models equipped with an FS10 compressor, with fitment split by model year and service configuration.

Key Features

• Brand: Four Seasons
• Brand line: PAC-Kit w/ New Compressor
• Part number: 5556N
• Category: A/C compressor kit
• Fits 1999 Ford Mustang, N/A, before 11/21/99, w/ FS10 compressor
• Fits 2000-2001 Ford Mustang, N/A, w/ FS10 compressor

Product Details

This Four Seasons PAC-Kit w/ New Compressor is organized for Ford Mustang A/C service where the compressor is the primary replacement concern. The kit reference includes the new compressor, accumulator, liquid line with orifice, flush, and oil part references in the fitment notes, making it a direct match for the listed Mustang configurations. Use Four Seasons 5556N when servicing a 1999-2001 Ford Mustang with the specified FS10 compressor setup.

This part cross-references common service references 58141 and 33034 for the same application.

Common Problems It Addresses

• Loss of A/C cooling performance
• Noisy or seized compressor operation
• Refrigerant circulation issues in the FS10 system
• Compressor replacement on a 1999 Ford Mustang built before 11/21/99
• Compressor replacement on a 2000-2001 Ford Mustang

Installation Notes and Tips

Verify the vehicle build date and compressor type before ordering. This part is listed for 1999 Mustang models built before 11/21/99 and for 2000-2001 Mustang models with an FS10 compressor. Confirm the A/C system configuration against the vehicle before installation, and follow standard evacuation, flushing, and recharge procedures during service.

Quality Assurance

Four Seasons supplies aftermarket HVAC service parts for vehicle-specific A/C repair applications. Part number 5556N is cataloged for the listed Ford Mustang fitments and should be matched to the vehicle’s compressor system before installation.