Unfortunately they stopped manufacturing the MB TKO wheel a few years ago.  It was one of the more popular wheels in the MB Wheels line.  You probably still see them all over.  With the stopped production of the wheel also meant the center cap was no longer produced.  

Don't worry though - there might be a few caps out there.  And if not?  We have a solution.  The Ro Center Cap comes in 5 lug and 6 lug and will fit the wheel and your vehicle perfectly.  

For chrome check out the link Chrome 6 Lug Cap

For black 6 lug check out Black 6 Lug

Feel free to contact us with questions.  They fit based off of your vehicle fitment so make sure you are getting the correct lug nuts when you order.