This part is listed by BMW as BMW part number 11418335879 (11 41 8 335 879) and is described as the plug (cover lid) for the turbo oil return line on M235i/M240i Racing model. This factory race car uses the oil pump from the S55 engine (twin turbo) so this block-off is needed for the single-turbo N55 engine when retrofitting the S55 oil pump.
This is a Genuine BMW oil return plug with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
2 Series
F22 / F23 (2014-2021) > M235i-Racing
F22 / F23 (2014-2021) > M240i-Racing