HOP Oxygen Sensor 234-4545 5149180AA 7B0906262B Chrysler Cherokee RAM

HOP oxygen sensor (OEM numbers 234-4545, 5149180AA, 7B0906262B) fits several Chrysler group models including 200, 300, Challenger, Charger, Cherokee, and RAM series. Core function: monitor exhaust oxygen content and feed to ECU to adjust air-fuel ratio, ensuring engine combustion efficiency. After installation, can resolve high fuel consumption, sluggish acceleration, or constant emission light. If idle is unstable, exhaust pipe emits dark smoke, or fuel consumption suddenly rises, sensor may be aging.