Well mine is a little doifferent than what you described. Mine has a black steal tube about 3/8 in diameter that runs from the Turbo inlet tube before the turbo to the the back of my valve cover but it conects to a white PCV looking valve and then that plugs into the top of my valve cover close to the firewall. Wish I took pics... The actual piece going into my valve cover is the exact size as my actual PCV valve only white in color. Matter of fact placing them side by side other than color they look identicle. Has a little spring and all in it. I believe it's worn out since the spring doesn't hold the valve closed any more thus the reason I need a part number to replace it. I wondering if a regular PCV valve will work in it's place.