Four Seasons 2143NK A/C Compressor and Component Kit

Complete A/C Kit for Ford F-150

Four Seasons 2143NK is a complete air conditioning kit with a new compressor for Ford trucks that use an FS10 compressor and factory air. It is built for 1999-2004 Ford F-150 and 2004 Ford F-150 Heritage applications with a blue orifice tube and R134a refrigerant service requirements.

The Four Seasons Complete A/C Kit line brings together the major components needed for a full compressor-side repair in one package. Part number 2143NK includes the compressor, accumulator, orifice tube, oil, and O-rings for a direct-service approach on the listed Ford F-150 applications.

Key Features

• Four Seasons 2143NK complete A/C compressor kit
• Includes a new compressor, accumulator, orifice tube, oil, and O-rings
• Uses a blue standard orifice tube with .067 in. diameter
• Accumulator features P-nut inlet and male springlock outlet fittings
• Configured for R134a refrigerant systems
• Limited lifetime warranty
• Cross-reference part numbers include 520583 and MK1056

Detailed Description

Four Seasons 2143NK is a complete A/C compressor kit for Ford F-150 and Ford F-150 Heritage models equipped with an FS10 compressor and factory air. The kit is organized around the core service parts needed for a compressor replacement: a new compressor, accumulator, blue orifice tube, compressor oil, and O-rings. The accumulator measures 3.500 inches in diameter and 8.500 inches in length, with 0.750 inch inlet and outlet fitting sizes. This setup supports a clean, application-specific repair for vehicles using R134a refrigerant.

Fits 1999-2004 Ford F-150, N/A. Fits 2004 Ford F-150 Heritage, N/A. Part number 2143NK is a direct match for these listed applications and should be verified against the vehicle’s existing compressor and orifice tube configuration before ordering.

Common A/C Problems This Kit Can Address

• Loss of cooling performance from a worn or failed compressor
• Restricted refrigerant flow caused by a damaged or incorrect orifice tube
• Moisture or contamination concerns in the accumulator
• Leaks at service connections where O-rings and seals are needed
• System service needs after compressor replacement on FS10-equipped trucks

Installation Notes and Tips

Confirm the vehicle has an FS10 compressor, factory air, and a blue orifice tube before installation. Replace the accumulator and orifice tube during compressor service, and evacuate and recharge the system with the correct R134a refrigerant procedure after repairs. Check all fittings, seals, and line connections for proper seating before returning the vehicle to service.

Quality Assurance

Four Seasons 2143NK is backed by a limited lifetime warranty. The kit is built as a complete replacement solution for the listed Ford F-150 applications, with the major A/C service components grouped for a consistent repair path.