Description

The NTK Downstream Oxygen O₂ Sensor is engineered for 2007–2012 Mazda CX-7 with L4 2.3L and 2.5L engines. This downstream sensor monitors oxygen levels after the catalytic converter , providing real-time feedback to the ECU. Accurate readings ensure your engine maintains an optimal air-fuel ratio , improves fuel efficiency, reduces harmful emissions, and restores peak engine performance. Constructed with OE-quality materials , this sensor is built to withstand high temperatures, corrosion, and harsh driving conditions. Its direct-fit design with an OE-style connector allows plug-and-play installation, making replacement easy and reliable. Key Features & Benefits OE-quality downstream oxygen sensor for Mazda CX-7 L4 2.3L and 2.5L Provides accurate exhaust gas readings to the ECU Improves fuel efficiency, engine performance, and throttle response Helps prevent check engine light activation and emission code triggers Durable construction for long-lasting reliability Direct-fit OE-style connector ensures easy installation Reduces vehicle emissions and promotes compliance with environmental regulations Engine Compatibility L4 2.3L Gasoline Engine L4 2.5L Gasoline Engine Compatible with vehicles requiring downstream oxygen sensors Vehicle Applications Mazda CX-7 2007–2012 (2.3L and 2.5L L4 engines) Fits standard and turbocharged variants where downstream O₂ sensors are required Included Components 1 x NTK Downstream Oxygen O₂ Sensor OE-style electrical connector