Four Seasons 20259SK A/C Compressor Replacement Service Kit

Four Seasons A/C Installer Kit for Ford Super Duty

The Four Seasons 20259SK A/C Compressor Replacement Service Kit is built for Ford Super Duty applications that need a complete service solution during compressor replacement. It combines the core components commonly required for an R134a system refresh, including PAG 46 compressor oil, an expansion valve, a desiccant bag kit, and sealing components.

Four Seasons A/C Installer Kits are organized to streamline HVAC service work by grouping the parts needed for a compressor replacement into one service kit. This helps reduce parts matching time when servicing Ford F-250 Super Duty and Ford F-350 Super Duty trucks.

• Part number: 20259SK
• Includes compressor oil with PAG Oil / 46 specification
• Expansion device type: block type
• Designed for R134a refrigerant systems
• Includes desiccant bag kit, expansion valve, compressor oil, O-ring/gasket pack, cap and valve kit
• Gaskets and seals included
• Receiver drier/accumulator dimensions: 1.250 in. diameter, 15.000 in. length
• Limited lifetime warranty

Detailed Product Overview

This A/C Compressor Replacement Service Kit is intended for HVAC service on 2011-2016 Ford F-250 Super Duty, 2014-2016 Ford F-350, and 2011-2016 Ford F-350 Super Duty applications. The kit centers on the components typically replaced during compressor service, including the expansion valve, desiccant bag kit, compressor oil, and sealing parts. The sealing washer inlet and outlet design supports the specified block-type expansion device configuration.

This part cross-references Monroe Shocks & Struts (e.g., 550803, MUK20030) for the same application. The Four Seasons 20259SK part number is also referenced by 20259SK for ordering and catalog lookup.

Common Service Issues This Kit Addresses

• Loss of cooling performance after compressor replacement
• Contaminated or depleted A/C compressor oil during HVAC service
• Leaking seals, O-rings, or gaskets in the refrigerant circuit
• Restricted refrigerant flow at the expansion valve
• Moisture control concerns in an R134a A/C system

Installation Notes

Verify the vehicle’s original A/C configuration before installation and confirm R134a refrigerant system requirements. Replace sealing components during service, and follow the specified PAG 46 oil handling and fill procedures for the compressor replacement. Check the receiver drier/accumulator dimensions and expansion valve style against the existing HVAC layout before assembly.

Quality Assurance

Four Seasons backs this A/C service kit with a limited lifetime warranty. The kit is built for service-focused HVAC repair work on Ford Super Duty trucks and packaged to support a complete compressor replacement process.