This part is listed by BMW as BMW part number 12311432988 (12-31-1-432-988) and is described as Alternator Pulley - D=55mm - E36 E46 E39 Z3.
The diameter on this alternator pulley is 55mm. You'll find this pulley on many 1990s through early 2000s 6 cylinder applications, such as the 1992-1995 M50/S50 engine (325i/325is/525i/M3 3.0), 1996-1999 M52/S52 engine (328i/328is/M3 3.2), and 1999-2000 M52tu engine (323i, 323Ci, 328i, 328Ci, 528i, Z3 2.3/2.8). Check your fitment carefully.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us 877-639-9648.
BMW Fitments:
3 Series
E36 (92-99) > 323ic
E36 (92-99) > 323is
E36 (92-99) > 325i
E36 (92-99) > 325ic
E36 (92-99) > 325is
E36 (92-99) > 328i
E36 (92-99) > 328ic
E36 (92-99) > 328is
E36 (92-99) > M3 (1995)
E36 (92-99) > M3 (96-99)
3 Series
E46 (99-05) > 323Ci
E46 (99-05) > 323i
E46 (99-05) > 328Ci
E46 (99-05) > 328i
5 Series
E34 (89-95) > 525i M50
5 Series
E39 (97-03) > 528i 97-98
E39 (97-03) > 528i 99-00
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 1.9
E36/7 / E36/8 Z3 (96-02) > Z3 2.5
E36/7 / E36/8 Z3 (96-02) > Z3 2.8 97-98
E36/7 / E36/8 Z3 (96-02) > Z3 2.8 99-00
