This part is listed by BMW as BMW part number 12120037244 (12-12-0-037-244) and is described as Genuine BMW Spark Plug - ZGR6STE2 - 2007-2010 6 Cyl. Turbo Engine (N54).
This spark plug is also sometimes listed as BMW part # 12120034087 (12 12 0 034 087) and is interchangeable, per BMW.
For questions, information or for assistance from one of our BMW experts, we recommend calling us 877-639-9648.
Video: Replacing Spark Plugs on E9X 335 (Courtesy of SeanS54):
