This gray plastic expanding nut is used to mount the headlamps on E46 3-series and E39 5-series. It is also used to mount the coolant expansion tank on E60/E61 5-Series and E63/E64 6-Series models.
This part is listed by BMW as BMW part number 63128374671 (63 12 8 374 671) and is described as Genuine BMW Expanding Nut (Gray).
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
3 Series
E46 (99-05) > 320i
E46 (99-05) > 323Ci
E46 (99-05) > 323i
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 325xi
E46 (99-05) > 328Ci
E46 (99-05) > 328i
E46 (99-05) > 330Ci
E46 (99-05) > 330i
E46 (99-05) > 330xi
E46 (99-05) > M3
5 Series
E39 (97-03) > 525i
E39 (97-03) > 528i 97-98
E39 (97-03) > 528i 99-00
E39 (97-03) > 530i
E39 (97-03) > 540i
E39 (97-03) > M5 (00-03)
5 Series
E60 / E61 (04-10) > 525i M54 (2004-2005)
E60 / E61 (04-10) > 525i N52 (2006-2007)
E60 / E61 (04-10) > 525xi N52 (2006-2007)
E60 / E61 (04-10) > 528i
E60 / E61 (04-10) > 528xi
E60 / E61 (04-10) > 530i M54 (2004-2005)
E60 / E61 (04-10) > 530i N52 (2006-2007)
E60 / E61 (04-10) > 530xi N52 (2006-2007)
E60 / E61 (04-10) > 535i
E60 / E61 (04-10) > 535xi
E60 / E61 (04-10) > 545i
E60 / E61 (04-10) > 550i
E60 / E61 (04-10) > M5
6 Series
E63 / E64 (04-10) > 645Ci
E63 / E64 (04-10) > 650i
E63 / E64 (04-10) > M6
