Four Seasons 20133SK A/C Compressor Replacement Service Kit

Four Seasons A/C Installer Kit for Ranger, Explorer, Navajo

The Four Seasons 20133SK A/C Installer Kit is built for service work on select Ford and Mazda applications with factory air and R134a refrigerant systems. It combines the core replacement components needed for an A/C compressor service, including PAG 46 compressor oil, sealing components, and matched service parts for a cleaner repair.

Four Seasons A/C Installer Kits are organized for compressor replacement jobs where the system needs the supporting parts replaced at the same time. This kit is a direct service solution for 1983-1993 Ford Ranger, 1984-1990 Ford Bronco II, 1991 Ford Explorer, and 1991 Mazda Navajo applications listed below.

Key Features

• Part number 20133SK from Four Seasons A/C Installer Kits
• Includes accumulator, orifice tube kit, compressor oil, O-ring/gasket pack, and cap and valve kit
• Compressor oil included: PAG Oil / 46
• Gaskets and seals included for service sealing points
• Built for R134a refrigerant systems
• Limited lifetime warranty
• Cross-reference part numbers include 550944 and MUK20154 for the same application

Product Details

The Four Seasons 20133SK is an A/C compressor replacement service kit for vehicles that require a coordinated compressor service package. It includes the accumulator, orifice tube kit, PAG 46 compressor oil, O-ring/gasket pack, and cap and valve kit, helping restore the system with the correct service components in one package. The accumulator measures 3.500 inches in diameter and 10.000 inches in length, with a 0.625 inch female springlock inlet and a 0.625 inch male insert O-ring outlet.

Compatible With 1983 Ford Ranger, 1984-1993 Ford Ranger, 1984-1990 Ford Bronco II, 1991 Ford Explorer before 3/91, and 1991 Mazda Navajo before 3/91. This Four Seasons 20133SK kit is intended for factory air vehicles using R134a refrigerant service specifications.

Common Repair Uses

• Replacing a failed compressor service setup during A/C repair
• Addressing refrigerant leaks at seals, O-rings, or gasket points
• Restoring proper refrigerant metering with a new orifice tube kit
• Servicing an accumulator that has contamination or moisture exposure
• Supporting an R134a system recharge after compressor replacement

Installation Notes

Verify vehicle year, engine bay configuration, and factory air equipment before ordering. Match the inlet and outlet fitting styles to the existing system, and confirm PAG 46 oil is correct for the repair procedure being performed. Replace sealing surfaces carefully and evacuate the system before recharging with R134a.

Fits 1983 Ford Ranger, N/A; Fits 1984-1993 Ford Ranger, N/A; Fits 1984-1990 Ford Bronco II, N/A; Fits 1991 Ford Explorer, N/A before 3/91; Fits 1991 Mazda Navajo, N/A before 3/91.

Quality Assurance

Four Seasons backs this A/C service kit with a limited lifetime warranty. Part number 20133SK is built for the listed applications and cross-references 550944 and MUK20154 for the same application.