This part is listed by BMW as BMW part number 11538674931 (11 53 8 674 931) and is described as the O-Ring (28.7x2.5mm or 29x2.5mm) for the water pipe from the water pump to the cylinder head on B46D, B58C, and B58D (B58TU) engines. This seals the pipe to the cylinder head.
A new pipe will include new o-rings. If you need the lower o-ring to the water pump, BMW part #11538678045, see Related Items below.
This is a Genuine BMW O-Ring 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
G42 / G43 (2022+) > 230i
G42 / G43 (2022+) > 230i xDrive
G42 / G43 (2022+) > M240i
G42 / G43 (2022+) > M240i xDrive
3 Series
G20 (2019+) > 330i
G20 (2019+) > 330i xDrive
G20 (2019+) > M340i
G20 (2019+) > M340i xDrive
4 Series
G22 / G23 (2021+) > 430i
G22 / G23 (2021+) > 430i xDrive
G22 / G23 (2021+) > M440i
G22 / G23 (2021+) > M440i xDrive
4 Series
G26 (2022+) > 430i Gran Coupe
G26 (2022+) > 430i xDrive Gran Coupe
G26 (2022+) > M440i xDrive Gran Coupe
G30 (2017-2023) > 540i (B58C 2020-2023)
G30 (2017-2023) > 540i xDrive (B58C 2020-2023)
7 Series
G12 (2016-2023) > 740i
G12 (2016-2023) > 740i xDrive
8 Series
G14 / G15 / G16 (2019+) > 840i xDrive
X3 Series
G01 X3 (2018-2024) > X3 M40i B58D (2020-2024)
G01 X3 (2018-2024) > X3 sDrive30i
G01 X3 (2018-2024) > X3 xDrive30i
X4 Series
G02 X4 (2019-2024) > X4 M40i B58D (2020-2024)
G02 X4 (2019-2024) > X4 xDrive30i
X5 Series
G05 X5 (2019+) > X5 sDrive40i RWD B58C (2019-2023)
G05 X5 (2019+) > X5 xDrive40i B58C (2019-2023)
X6 Series
G06 X6 (2020+) > X6 sDrive 40i B58C (2020-2023)
G06 X6 (2020+) > X6 xDrive 40i B58C (2020-2023)
X7 Series
G07 X7 (2019+) > X7 xDrive40i B58C (2019-2022)
Z Series
G29 Z4 (2019-2025) > Z4 M40i
G29 Z4 (2019-2025) > Z4 sDrive30i
