Porsche 986 (97-99) power Brake vacuum Booster OEM T.R.W. servo Brake Booster (Vacuum) + Seal Kit, required for '97-99. Brand NEW part with full 1 year warranty. Porsche part# 996 355 923 00, and seal kit@# 000 043 204 66 Recently made by TRW (OEM), not been lying around. Fits: 1997-1999 Boxster