What's this part?
 

Does anybody know the name of this part, and/or the P/N? It's the little fender liner piece with the aero bit that gets pounded by those parky-curby things.

I'd like to get a fresh one and replace it myself - looks like it is a combo of bolts and plastic rivets (which I am assuming get destroyed in the process), and I guess I will need those as well.

Thanks in advance for any assistance, and yes - I did search the parked thread! :-)

That's the fender liner extension. A2098841322 is the part number for the right side. It's held in place by plastic trim retainers and bolts. The plastic retainers do not get destroyed - just pull them out and they can be reused.