Upper Main Bearing Shell, Brown, BMW - F22, F3X, G2X, G8X, G30, G12, G15, F97, F98, G05, G07 (B58C, B58D, S58)

This part is listed by BMW as BMW part number 11217926105 (11 21 7 926 105) and is described as a upper main bearing shell for B58C, B58D, and S58 engines used in F22 M240i, F30 340i, F32 440i, G20 M340i, G22 M440i, G8X M2/M3/M4, G30 540i, G12 740i, G15 840i, F97 X3M, F98 X4M, G05 X5, G07 X7. It's also used in the B58C engine used in A90 Supra. This is an upper shell, with a brown color code and is the standard 55.00mm size.

Important Bearing ID Note: BMW has a different way of identifying main and rod bearings. Locate a letter code on the passenger side of the engine block and combine that with a letter on the front of the crankshaft. There are 9 different combinations using 3 colors. It would not be unusual to have a mix of codes and colors. Note that bearing position 4 is the thrust bearing shells and are different part number than the rest.

This part number replaces, or is backwards compatible, with BMW part numbers 11 21 7 926 105, 11218595886, 11218588652, 11218571837.

This is a Genuine BMW B58/S58 main bearing shell 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+) > M240i
F22 / F23 (2014+) > M240i xDrive
3 Series
F30 / F31 / F34 (2012-2019) > 340i
F30 / F31 / F34 (2012-2019) > 340i xDrive
3 Series
G20 (2019+) > M340i
G20 (2019+) > M340i xDrive
3 Series
G80 (2021-) > M3 (2021-)
G80 (2021-) > M3 Competition RWD (2021-)
G80 (2021-) > M3 xDrive Competition (2021-)
4 Series
F32 / F33 / F36 (14-20) > 440i
F32 / F33 / F36 (14-20) > 440i xDrive
4 Series
G22 / G23 (2021+) > M440i
G22 / G23 (2021+) > M440i xDrive
4 Series
G82 / G83 (2021-) > M4 (2021-)
G82 / G83 (2021-) > M4 Competition RWD (2021-)
G82 / G83 (2021-) > M4 xDrive Competition (2021-)
5 Series
G30 (2017-) > 540i (B58A 2017-2019)
G30 (2017-) > 540i (B58C 2020-)
G30 (2017-) > 540i xDrive (B58A 2017-2019)
G30 (2017-) > 540i xDrive (B58C 2020-)
8 Series
G14 / G15 (2019+) > 840i xDrive
X3 Series
F97 X3M (2020+) > X3M
X4 Series
F98 X4M (2020+) > X4M
X5 Series
G05 X5 (2019+) > X5 sDrive40i RWD
G05 X5 (2019+) > X5 xDrive40i
X7 Series
G07 X7 (2019+) > X7 xDrive40i
Z Series
G29 Z4 (2019+) > Z4 M40i