If you have an E39 which is not an M5, I imagine you can retrofit this knob, but I can't gurantee it, so please do some research first. Check out our extensive selection of great BMW parts and accessories by going to our store. The item "BMW Genuine E39 M5 1999-2003 Illuminated Burr Walnut 6 Speed Manual Shift Knob" is in sale since Thursday, May 3, 2018. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Interior\Shift Knobs & Boots". The seller is "euroactive" and is located in Olyphant, Pennsylvania.This item can be shipped worldwide.