Back to the subject, those PN's are incorrect. A big giveaway is there is a left and right side PN.
http://www.mbwholesaleparts.com/fmpc...assisShort=170

Choose a category then change Select Baumuster to one of the following:
170.447 for 1996 SLK 230K
170.449 for 2000 SLK 230K
170.465 for 2000 SLK 320
170.466 for 2001 SLK 32K

For base or limited, I'd select 170.465
For the SRT-6 I'd select 170.466

By the way, The rotors and calipers are the same on my SLK32/(C32) and SRT-6.