Four Seasons 1915NK A/C Compressor and Component Kit

Complete A/C Kit for Ford FS6 Applications

Restore cabin cooling with the Four Seasons Complete A/C Kit, part number 1915NK. This complete air conditioning kit includes a new compressor, accumulator, orifice tube, oil, and O-rings for Ford trucks and SUVs equipped with an FS6 compressor and factory air.

Built for 1983-1991 Ford Bronco, F-100, F-150, F-250, and F-350 applications, this kit is a direct-fit solution for common R134a retrofit and service needs on older Ford HVAC systems.

Key Features

• Four Seasons Complete A/C Kit, part number 1915NK
• Includes 58112 new compressor, 33189 accumulator, 38621 orifice tube, 59007 oil, and O-rings
• Uses R134a refrigerant type
• Compressor oil included
• Orifice tube setup with .067 in. blue standard orifice tube
• Receiver drier/accumulator with male insert O-ring inlet and outlet fittings
• Limited lifetime warranty

Product Details

The Four Seasons Complete A/C Kit 1915NK is organized around the core components needed to service an FS6-based Ford air conditioning system. It includes a new compressor, accumulator, orifice tube, oil, and sealing O-rings, making it a practical choice for Ford Bronco, F-150, F-250, F-350, and F-100 models with factory air. The accumulator measures 3.500 inches in diameter and 9.500 inches in length, with male insert O-ring fittings sized for the listed applications.

This kit is specified for R134a refrigerant systems and uses a blue standard orifice tube with a .067-inch diameter. Four Seasons 1915NK is a fitment-based solution for 1983-1991 Ford FS6 compressor applications, including trucks with grooved belt or single groove pulley configurations where noted.

This part cross-references Four Seasons 1915NK for the same application.

Common Problems This Kit Can Address

• Weak or inconsistent A/C cooling from a worn compressor
• Restricted refrigerant flow caused by a clogged orifice tube
• Moisture control and system contamination concerns after compressor service
• Leaking seals at accumulator or line connections
• Loss of cooling performance in older Ford factory air systems

Installation Notes and Tips

Verify FS6 compressor fitment, factory air equipment, and the correct belt/pulley configuration before installation. Replace the accumulator and orifice tube when servicing the compressor to help reduce contamination risk in the system. Follow proper evacuation, oil balancing, and recharge procedures for R134a service, and confirm all O-ring connections are seated correctly before returning the vehicle to service.

Compatible With: Fits 1983-1986 Ford Bronco, N/A; Fits 1983-1986 Ford F-150, N/A; Fits 1983-1986 Ford F-250, N/A; Fits 1983-1986 Ford F-350, N/A; Fits 1983 Ford F-100, N/A; Fits 1987-1988 Ford F-250, N/A; Fits 1987-1988 Ford F-350, N/A; Fits 1987-1989 Ford F-250, N/A; Fits 1987-1989 Ford F-350, N/A; Fits 1990-1991 Ford F-250, N/A; Fits 1990-1991 Ford F-350, N/A.

Quality Assurance

Four Seasons backs this complete A/C kit with a limited lifetime warranty. Part number 1915NK is built for the listed Ford applications and packaged as a complete air conditioning kit with new compressor service components for repair-focused HVAC work.