Is the following just a breather from the head, into the intake? I want to replace it, as it appears to have a grommet push-fit into the intake pipe which is loosely held in with zip ties. I'm worried about leaks so want to replace this, anyone tell me what it is and a part number please (all parts I might need)?

I have to go and get my EGR blank in the next few days anyway.
Bri