DISCONTINUED / Replaced by CAP-642B-TSTAR
DropStars 642B Center Cap CAP-642B-DC
This is the standard height cap and is only about 2 inches tall. See CAP-642B-DC-T for taller version of the cap.
Other part numbers that may or may not be on the back of the center cap:
6033L217 (Base of cap)
LG1204-28 (Base of cap)
6032K138 (Pop-out end piece)
LG1205-20 (Pop-out end piece)