J3‑44 Denso Pressure Valve 499000‑7141 Bus Air‑Conditioner Pressure Sensor Valve

J3‑44 Denso Pressure Valve 499000‑7141 is high‑precision pressure sensing valve for bus and coach air‑conditioning refrigeration circuit. It monitors refrigerant pressure inside AC system in real‑time, sends accurate pressure signal to air‑conditioner control unit, to protect compressor from abnormal high or low pressure damage. Compact metal threaded body, reliable sealing performance, good anti‑vibration capability for on‑board harsh operating environment. Standard plug‑in connector, easy installation and quick replacement. Widely used as aftermarket spare part for various coach and bus air‑conditioning systems.