Rear A/C Expansion Valve – Precise Cooling Control ❄️

Keep the back rows chilled and comfortable with a reliable rear cooling metering valve. It balances pressure and temperature so the rear evaporator delivers steady cold air, even in hot traffic. Built for long life and clean flow, it restores factory-grade HVAC performance and protects the compressor.

Why this part is needed ️

It regulates refrigerant flow to the rear evaporator. Correct metering prevents icing, maintains low vent temps, and reduces load on the A/C system. Expect faster cool-down, quieter operation, and stable comfort for all passengers.

How it works

A thermal sensor controls a needle that meters liquid refrigerant from the high-pressure line into the rear core. It targets proper superheat, opening under high heat load and closing as the evaporator cools. The result: efficient heat exchange with minimal energy waste.

What happens if it fails ⚠️

Warm air from rear vents, intermittent cooling, frost on lines, hissing, oily residue at fittings, high/low pressure imbalance, and increased compressor stress. Left unchecked, it can cause poor fuel economy and early compressor wear.

Tech tips ️

Replace O-rings, evacuate and recharge to spec, insulate the sensing bulb, and torque fittings correctly. Flush if contamination is present.

Compatibility

• Isis
• Land Cruiser Prado