I'm not sure if the SRT and the N/A have the same pump but that second link is the place I got mine from, I have an N/A and it is the right part no.

I stubbled across them when I was looking, I thought that's what they're called in the States, but I've not seen them reffered to as smog pumps anywhere else either. They'd probably sell more if they called them by the right name!