You are purchasing an aftermarket engine oil sump plug / drain plug.

Will fit - 
All Porsche Boxster's from 1997 to 2004.
All Porsche 996 C2, C4 and C4S from 1998 to 2004.
All Porsche 997 Gen 1 from 2005 to 2008.
All Porsche 987 Boxster Gen 1 2005 to 2008.
All Porsche 987 Cayman Gen 1 2006 to 2008

Equivalent Porsche Part No 900-219-009-30

Our Ref - BOX 149