Quick Overview Brand: Walker ProductsItem Dimensions LxWxH: 5.7 x 3.9 x 2.05 inchesItem Weight: 0.31 PoundsStyle: ModernSpecific Uses For Product: Oxygen Sensor Meets or Exceeds Original Equipment Specifications Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all original equipment specification and test requirements. When oxygen sensor failure occurs, the Malfunction Indicator Lamp (MIL) is illuminated on the dash, alerting the driver the vehicle has a problem. To diagnose the fault, a scan tool is connected to the vehicle to read the trouble code. After having identified the description using a list of trouble codes, the next step is to diagnose the fault. You must follow the diagnostic procedure to properly diagnose the system, sensor, and/or circuit. OEM Based Oxygen Sensor 100% OE Based Sensors for precise OE Fit, Form, and Function Engineered, assembled, and 100% performance tested in the USA Corrosion resistant Easy Installation Replacement of Your Vehicle’s Oxygen Sensors, Matter! If the oxygen sensor detects a abnormal higher level of oxygen in your exhaust, it can send a signal to the engine control module (ECM) to adjust the fuel-air mixture so it burns more efficiently Dependable oxygen sensors help in reducing fuel consumption and emissions. Walker Products O2 sensors meets or exceeds OE specifications. We carry exact-fit sensors with OE connectors for easy installation. A defective oxygen sensor can cause your catalytic converter to fail prematurely. Replacing an oxygen sensor is significant better than replacing a catalytic converter. Designed and engineered to provide exact OE form, fit, and function so you can replace your O2 sensors with confidence. Trust the Oxygen Sensor experts at Walker Products to provide you and your vehicle with the best O2 sensors available. If the optimum combustion is not maintained, the engine can emit harmful amounts of carbon monoxide and excessive levels of hydrocarbons. Walker Products O2 sensors are specifically designed for your vehicle. You will not receive universal sensors that have to be manually wired. Exact OE fit, form, and function are our top priority.