This part is listed by BMW as BMW part number 12611276183 (12 61 1 276 183) and is described as the engine oil level sensor (Levelling Switch) for E28 M5, E24 635CSi (up to 6/87), E24 M6, E23 733i, E32 735i (up to 3/87).
This is a Genuine BMW oil level sensor 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:
5 Series
E28 (82-88) > 535i
E28 (82-88) > M5 (87-88)
E24 (77-89) > 633CSi
E24 (77-89) > 635CSi
E24 (77-89) > M6
7 Series
E23 (77-87) > 733i
E23 (77-87) > 735i
7 Series
E32 (88-94) > 735i