Four Seasons 4551R A/C Compressor Replacement - Kit

The Four Seasons 4551R is a comprehensive A/C compressor replacement kit designed to provide everything needed for a complete and successful air conditioning system repair. This all-in-one kit eliminates the hassle of sourcing individual components, ensuring proper compatibility and satisfying compressor warranty requirements.

Complete Kit Includes:

• A/C Compressor - remanufactured to meet or exceed OE specifications
• Accumulator or Filter Drier - removes moisture and contaminants from the system
• Expansion Device (Orifice Tube or Expansion Valve) - regulates refrigerant flow
• Compressor Oil - proper viscosity for optimal lubrication
• Complete Gasket and O-Ring Set - ensures leak-free installation

Quality and Testing:

Every Four Seasons compressor undergoes rigorous quality control including vacuum testing, pressure testing, and helium mass spectrometer leak detection. All internal components are meticulously inspected and refinished, with 100% new bearings, seals, gaskets, O-rings, and wear components to ensure reliable performance equal to new OE units.

Why Choose a Complete Kit:

Replacing the compressor alone is not sufficient for a lasting repair. When a compressor fails, contaminants and debris circulate throughout the entire A/C system. This kit includes all critical components that must be replaced to prevent old contaminants from damaging your new compressor. The accumulator or drier removes moisture that degrades refrigerant and lubricant, while the expansion device must be replaced as its fine mesh screens can become plugged with system debris.

Four Seasons is the largest aftermarket climate control parts supplier in the industry and the world's largest compressor remanufacturer, backed by over 50 years of mobile air conditioning expertise. All products are tested, validated, and inspected by engineers with over 45 years of experience in automotive air conditioning systems.