Porsche parts typically have the Porsche part number on the part itself somewhere.
The information I have tells me a Girling booster is part number 944 355 023 00 and the Ate' booster is 944 355 023 11
My parts software doesn't have an exploded view of the master cylinder, so I can't help you there. I can see why you'd want to rebuild the master (if that's what you're doing) since a new one is NOT cheap.
Try pelicanparts. Com too. That place is a wealth of good Porsche information
Good luck,
Kevin
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Thursday, October 25th, 2007 AT 12:32 PM