If you lean slightly forward that's the part number on the top
write it down including the letters and google it mate..
But it looks like a fuel rail sensor???
It's the main hair straighteners connection point.
It's the MAP or Manifold Absolute Pressure sensor
they do not put them on the tratter cars because they have no hair left with all the worries of the welding and things going wrongThis is the upgraded version for curling tongs