For Mazda 3 BK 1.6 2004-2009 Lambda Sensing Unit Upstream Downstream Oxygen Sensor Z601-18-861

Compatibility：For 3 BK Saloon 1.6 2004 2005 2006 2007 2008 2009 Function: The oxygen sensor features a built-in heating function which rapidly heats the sensing part to operating temperature after the engine is started, shortening the open-loop control period and enabling the engine to enter closed-loop control mode more quickly. Features: This oxygen sensor features a wear-resistant threaded design with a high surface hardness; the threads are resistant to wear and stripping even after repeated installation and removal, facilitating repeated installation during replacement. Please note: Before purchasing, please check that the make, model, year and engine type of your vehicle match those listed, to avoid installation failures due to incompatible specifications. After-sales service: Should you encounter any issues whilst using the product, please let us know and we will provide a solution without delay.