2004 S M9624
here are the parts and numbers for my car. I suggest you call sunset or sonnen with you VIN to confirm for your car. These part numbers were good as of June 2013. I hope this is a help.
chain rail(2) - 996-105-168-03
chain tensioner (1) - 996-105-156-00
chain tensioner (1) - 996-105-158-00
chain rail cyl (4-6) (1) - 996-105-164-00
chain rail cyl (1-3) (1) - 996-105-054-01
chain guide (1) - 996-105-166-51
IMS to Main Crank tensioner is Billet LN Engineering
The pic is of the removed parts.