Telescoping mirrors
#18
#21
#22
Different part numbers for each one. The caps can be purchased as an add on by the aftermarket but they do not fit like the caps that are there now. I'll see if I can dig up the part numbers for the three different mirrors. The only thing that changes on the part numbers are the last 2 letters. The entire mirror need to be taken apart to get to the fasteners that hold the caps in place. I wouldn't want to chance breaking my brand new mirrors changing out the caps.