NGK Mazda 3 2013-2010 Direct Fit 5-Wire Wideband A/F Sensor

This NGK 5-wire wideband Air-Fuel Ratio (A/F) sensor is designed specifically for your 2010-2013 Mazda 3. It's a direct replacement for your original sensor, playing a vital role in your vehicle's on-board diagnostic system. By providing the engine control unit (ECU) with precise data on the air-fuel mixture, it helps maintain optimal engine performance, maximize fuel efficiency, and reduce harmful emissions.

Unlike older switching sensors that only indicate if the mixture is rich or lean, this wideband sensor outputs a linear signal. This allows the ECU to make continuous, exact adjustments to keep the air-fuel ratio as close to stoichiometric as possible, ensuring the best combustion and lowest emissions. NGK, a leading manufacturer of OEM oxygen sensors, uses advanced ceramic technology with a 3-stage contaminant-resistant plasma jet and deposit trap overcoat. This protects the sensor element from poisoning, helping to prevent premature failure and ensure reliable performance over time.