Used Air Conditioning Expansion Valves 1990–2019

Find 14 used Air Conditioning Expansion Valves at Redline from 4 sellers across the US. Air conditioning expansion valves meter the flow of liquid refrigerant into the evaporator core. They create the pressure drop that causes the refrigerant to evaporate and absorb heat from the cabin air. We stock A/C expansion valves for 10 makes including Chevrolet, Honda, Nissan, Hyundai, Lexus. The expansion valve is a precision device that responds to evaporator temperature and pressure. When it fails, the A/C either blows warm air, freezes up the evaporator, or cycles on and off rapidly. A stuck-open valve floods the evaporator with too much refrigerant, reducing cooling and potentially sending liquid back to the compressor. A stuck-closed valve starves the evaporator and produces little to no cold air. Contamination in the system can clog the valve screen. Filter by year, make, and model to find the correct expansion valve. OEM valves are calibrated to the refrigerant charge and evaporator capacity of your vehicle's A/C system. The right valve keeps the system operating in the sweet spot for maximum cooling.