4PCS Front Rear Lambda Probe O2 OXYGEN SENSOR For BMW 1 3 120i 320i E90 X1 E84SPECIFICATIONS We stock oxygen sensors for most car models in the world with reasonable prices. If you can't find the parts you need in our listings, you can contact our customer service. Remember to provide your plate number or VIN number when placing your order. 4PCS 11787570481 11787545243 11787535269 11787570104 Front Rear Lambda Probe O2 OXYGEN SENSOR For BMW 1 3 120i 320i E90 X1 E84 Type: Heating Type Sensor Type: Piezoelectric Sensitivity: For