General description The 4Pcs Up+Downstream O2 Oxygen Sensor set is designed for specific BMW models, ensuring optimal performance and efficiency. This heating type sensor is made from durable plastic and metal materials, providing reliability and longevity. Technical specifications Type: Heating Type Sensor Type: Piezoelectric Reference Part Numbers: 11787530282, 11787512985, 11787530285, 11787547313 Hysteresis: 0893486, 81632, F00HL00392, 7547313, 90464, 7481864, 250-241086, 884511044 Linear: 884511030, 0893349, V10-76-0049, 751298403, 751298503, 77504, V20-76-0058 Package Contents: 4PCS x Oxygen Sensor Compatibility and accessories Compatible with: E87 120i, E90 320i, 320si, E91 Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowed error is +/- 1-3cm.