0258017290 ,BV6A9Y460AA ,1771995. For FORD 1.0 ECOBOOST PETROL ENGINE ONLY. 1 FRONT LAMBDA O2 SENSOR. This is only suitable for the third-generation model, the front oxygen sensor, (these are two points that are easy to buy wrong, you need to confirm whether you bought the front oxygen sensor, and whether the model is the third generation).