This part is listed by BMW as BMW part number 34321159183 (34-32-1-159-183) and is described as Genuine BMW Brake Fluid Reservoir (Expansion Tank) for Brake master cylinder on E36 318i, 318is, 325i (1992, 1993, 1994).
This part also fits the 1996 E36 328is coupe, if equipped with ASC+T traction control.
This item includes the plastic reservoir, strainer tube, and the cap with warning switch.
We also recommend replacing the 2 rubber grommets in your master cylinder. See below for BimmerWorld recommended related items.
BMW Fitments:
3 Series
E36 (92-99) > 318i M42
E36 (92-99) > 318ic M42
E36 (92-99) > 318is M42
E36 (92-99) > 325i
E36 (92-99) > 325ic
E36 (92-99) > 325is
E36 (92-99) > 328is