I have a widetrack blob which is showing faullt code P0340 camshaft position sensor A circuit (bank 1 or single sensor) according to torque app.

My car has three sensors, stupidly I thought they were all the same, I decided to replace all of them, however the sensors on the back of the heads are quite a bit smaller than the front camshaft sensor.

Would anybody happen to know the part number for the actual sensors I need please?