Four Seasons 3366NK A/C Compressor and Component Kit

Complete A/C Kit for Ford Truck Applications

Four Seasons Complete A/C Kit 3366NK is a complete air conditioning kit with a new compressor for select Ford truck applications. It combines the major replacement components needed for an FS10 compressor system, including the compressor, accumulator, orifice tube, oil, and O-rings.

Compatible with 2002-2003 Ford F-150, 2002-2003 Ford F-250, and 2004 Ford F-150 Heritage models equipped with factory air and a blue orifice tube.

Key Features

• Complete A/C compressor kit with new compressor
• Includes compressor oil and gasket/seal components
• Uses an orifice tube expansion device
• Designed for R134a refrigerant systems
• Includes accumulator, orifice tube, oil, and O-rings
• Blue standard orifice tube with .067 in. diameter
• Limited lifetime warranty

Product Details

The Four Seasons Complete A/C Kit line is built for service work that requires multiple air conditioning components to be replaced together. Part number 3366NK includes new compressor 58167, accumulator 83021, orifice tube 38621, oil 59007, and O-rings. The accumulator measures 3.500 in. in diameter and 8.500 in. in length, with a male springlock inlet fitting and P-nut outlet fitting sized at 0.750 in. This kit is specified for FS10 compressor systems using factory air and a blue orifice tube on Ford F-150, Ford F-250, and Ford F-150 Heritage trucks.

This part cross-references 520569 and MK1021 for the same application. Four Seasons 3366NK is a direct-fit A/C compressor kit for 2002-2003 Ford F-150, 2002-2003 Ford F-250, and 2004 Ford F-150 Heritage models listed in the fitment data.

What This Kit Helps Address

• Loss of A/C cooling performance
• Compressor noise or compressor failure
• Restricted refrigerant flow through the orifice tube
• Moisture or contamination in the A/C system
• Accumulator-related service needs during compressor replacement

Installation Notes and Tips

Verify the vehicle uses an FS10 compressor and factory air before installation. Confirm the blue orifice tube configuration and match the refrigerant system to R134a specifications. Replace the listed components together when servicing the system to help maintain proper refrigerant flow and sealing. Always follow the vehicle service procedure for evacuation, flushing, and oil charge verification.

Quality Assurance

Four Seasons 3366NK is backed by a limited lifetime warranty. The kit is built as a complete replacement solution for the specified Ford truck applications and includes the core service parts needed for a compressor-related A/C repair.