Air Conditioning Expansion Valve for John Deere 5210-5820, 6020, and 6030 Series Tractors SKU: QT57904

Inconsistent cooling, evaporator icing, or poor A/C performance often trace back to a faulty expansion valve. The expansion valve is your A/C system's throttle - controlling exactly how much refrigerant enters the evaporator. Too much flow and the evaporator ices up, blocking airflow. Too little and you get poor cooling despite the compressor running constantly. This replacement expansion valve restores precise refrigerant control for reliable cab cooling.

Key Benefits

• Precise refrigerant metering prevents evaporator icing and temperature swings
• Built to handle extreme operating pressures in agricultural A/C systems
• Restores consistent cab comfort during long work days
• Direct replacement design eliminates fitment concerns

Expansion valve replacement demands attention to cleanliness - any contamination causes immediate failure. Always replace the receiver drier when changing valves to remove moisture and debris. For over 55 years, S&H Parts has helped farmers maintain reliable equipment—call us if you need guidance on proper A/C service procedures.