This part is listed by BMW as BMW part number 18107523805 (18 10 7 523 805) and is described as Genuine BMW Collar Nut, M8. This is a copper nut typically used on exhaust components, such as exhaust manifolds and exhaust flanges.
Check your size prior to ordering, as this is a universal piece of hardware, with MANY fitments for MANY different BMW models.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
