NTK is the world's largest supplier and manufacturer of original equipment oxygen sensors. NTK Oxygen Sensors combines expertise with innovation and delivers Oxygen Sensors with superior fit, form and function. When you require the best, count on NTK Oxygen Sensors to deliver.
Oxygen Sensors are used in modern automobiles to control the fuel and ignition systems to optimize a car's performance in the areas of emissions and fuel economy. Sensors are located before and after the catalytic converter to check on the amount of oxygen in the exhaust. The sensor sends signals to the car's on-board computer, which then can adjust several variables, including air/fuel ratio and timing, in order to bring the engine into the optimum operating range.
Note: Please check the 'Applications' tab above for important fitment information.
Equivalent to BMW part number 11 78 7 685 320