This part is listed by BMW as BMW part number 11317523891 (11 31 7 523 891) and is described as the Securing Bracket for the Oil Pump Sprocket on N51, N52, N54, N55, and S55 engines. This needs to be replaced whenever it's removed or when the oil sprocket is removed.
This is a Genuine BMW oil sprocket retainer 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.
BMW Fitments:
1 Series
E82 / E88 (08-13) > 128i
E82 / E88 (08-13) > 135i N54 (08-10)
E82 / E88 (08-13) > 135i N55 (11-13)
E82 / E88 (08-13) > 135is N55 (11-13)
E82 / E88 (08-13) > 1M (11-12)
2 Series
F22 / F23 (2014-2021) > M235i
F22 / F23 (2014-2021) > M235i xDrive
F22 / F23 (2014-2021) > M235i-Racing
2 Series
F87 (2016-2021) > M2 CS Racing
F87 (2016-2021) > M2 Competition S55 (2019-2021)
F87 (2016-2021) > M2 N55 (2016-2018)
3 Series
E90 / E91 / E92 / E93 (06-13) > 323i
E90 / E91 / E92 / E93 (06-13) > 325i
E90 / E91 / E92 / E93 (06-13) > 325xi
E90 / E91 / E92 / E93 (06-13) > 328i
E90 / E91 / E92 / E93 (06-13) > 328xi
E90 / E91 / E92 / E93 (06-13) > 330i
E90 / E91 / E92 / E93 (06-13) > 330xi
E90 / E91 / E92 / E93 (06-13) > 335i N54 (07-10)
E90 / E91 / E92 / E93 (06-13) > 335i N55 (11-13)
E90 / E91 / E92 / E93 (06-13) > 335is N54
E90 / E91 / E92 / E93 (06-13) > 335xi N54 (07-10)
E90 / E91 / E92 / E93 (06-13) > 335xi N55 (11-13)
3 Series
F30 / F31 / F34 (2012-2019) > 335i
F30 / F31 / F34 (2012-2019) > 335i xDrive
F30 / F31 / F34 (2012-2019) > Hybrid 3
3 Series
F80 (2015-2018) > M3 (2015-2018)
4 Series
F32 / F33 / F36 (14-20) > 435i
F32 / F33 / F36 (14-20) > 435i xDrive
4 Series
F82 / F83 (2015-2020) > M4 (2015-2020)
F82 / F83 (2015-2020) > M4 GT4
F82 / F83 (2015-2020) > M4 GTS
5 Series
E60 / E61 (04-10) > 525i N52 (2006-2007)
E60 / E61 (04-10) > 525xi N52 (2006-2007)
E60 / E61 (04-10) > 528i
E60 / E61 (04-10) > 528xi
E60 / E61 (04-10) > 530i N52 (2006-2007)
E60 / E61 (04-10) > 530xi N52 (2006-2007)
E60 / E61 (04-10) > 535i
E60 / E61 (04-10) > 535xi
5 Series
F10 / F11 (11-16) > 528i N52 (2011)
F10 / F11 (11-16) > 535i
F10 / F11 (11-16) > 535i xDrive
F10 / F11 (11-16) > Hybrid 5
6 Series
F12 / F13 (12-18) > 640i
7 Series
F01 / F02 (2009-2015) > 740Li
F01 / F02 (2009-2015) > 740i
X1 Series
E84 X1 (2013-2015) > X1 35i xDrive
X3 Series
F25 X3 (2011-2017) > X3 xDrive28i
F25 X3 (2011-2017) > X3 xDrive35i
X4 Series
F26 X4 (2015-2018) > X4 35i xDrive
F26 X4 (2015-2018) > X4 M40i xDrive
X5 Series
E70 X5 (07-13) > X5 3.0si (07-10)
E70 X5 (07-13) > X5 xDrive35i N55 (11-13)
X5 Series
F15 X5 (2014-2018) > X5 sDrive35i (14-18)
F15 X5 (2014-2018) > X5 xDrive35i (14-18)
X6 Series
E71 X6 (2008-2014) > X6 xDrive35i N54 (08-09)
E71 X6 (2008-2014) > X6 xDrive35i N55 (10-13)
X6 Series
F16 X6 (2015-2019) > X6 sDrive35i N55 (15-19)
F16 X6 (2015-2019) > X6 xDrive35i N55 (15-19)
Z Series
E85 / E86 Z4 (03-08) > Z4 3.0i N52
E85 / E86 Z4 (03-08) > Z4 3.0si N52
