This part is listed by BMW as BMW part number 54347193450 (54-34-7-193-450) and is described as Genuine BMW Hinge for Convertible Top mechanism (Right side / passenger side) for the first generation Z4, also known as the E85 chassis, for the model years 2003, 2004, 2005, 2006, 2007 and 2008.
This hinge is a common failure item on the '03-'08 Z4 Roadster's convertible top mechanism. If you are servicing the convertible top's hydraulic mechanism, you may want to inspect this part for wear and/or failure. It's typical for this part to need to be replaced on the Z4 2.5 / 3.0 and Z4 M Roadster of that generation.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
Z Series
E85 / E86 Z4 (03-08) > Z4 2.5i M54
E85 / E86 Z4 (03-08) > Z4 3.0i M54
E85 / E86 Z4 (03-08) > Z4 3.0i N52
E85 / E86 Z4 (03-08) > Z4 3.0si N52
E85 / E86 Z4 (03-08) > Z4 M