Nitrogen Sensor OE: 11787587130 5WK96621K Applicable to: for E81 E87 116I 118I 120i N43, E82 120i N43, E88 118I 120i N43. 3 Series E90 316I 318i 320i N43, 3 series E91 E92 E93 316I 318i 320i N43 The sensor is the new type broadband NOx sensor. Its element is composed of special ceramics, which contains two oxygen density sensing chambers working together to determine NOx concentration. Replacing a faulty NOx sensor will reduce your vehicle's emissions to the atmosphere while keeping the engine running smoothly and normally. Ensure smooth and efficient operation of your vehicle and help extend the service life of the engine. Specification: OE: 11787587130 5WK96621K Material: Copper Plastic Package size: 20 x 15 x 7cm/7.8 x 5.9 x 2.75inch Package Includes: 1 Piece Dashboard Center Console Instrument Gauge Panel Bezel