NGK Mazda Millenia 2000-1997 Direct Fit Oxygen Sensor

When your check engine light comes on, or you notice your fuel economy dropping, a faulty oxygen sensor is often the culprit. For your 1997-2000 Mazda Millenia, this direct-fit oxygen sensor from NGK is designed to restore your vehicle's ability to monitor and control the air-fuel ratio. A properly functioning O2 sensor is key to keeping your engine running smoothly, maximizing gas mileage, and reducing harmful exhaust emissions.

NGK, a major supplier of original equipment sensors, builds these units with an advanced ceramic sensor element. This element features a 3-stage plasma jet and deposit trap overcoat that helps protect it from contaminants, which can often lead to sensor failure. By providing constant feedback to your car's computer (ECU), this sensor helps ensure the correct air-fuel mixture is maintained, which is also crucial for alerting you to potential issues with your fuel delivery or catalytic converter.