40mm Front Brake Caliper Piston for F8x M2/M3/M4 & F22/F3x M Sport

Description

This part is listed by BMW as BMW part number 146.40029 and is described as Replacement 40mm Piston for front brake caliper on F87 M2, M2 Competition (2016, 2017, 2018, 2019, 2020, 2021), F80 M3 Sedan (2015, 2016, 2017, 2018) and F82/F83 M4 Coupe/Convertible (2015, 2016, 2017, 2018).

Not for M2/M3/M4 models with Carbon Ceramic Brakes (CCB)

NOTE: Also fits optional M Sport front brake calipers on F22, F23, F30, F31, F32, F33, F34, and F36 models.

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
F87 (2016-2021) > M2 Competition S55 (2019-2021)
F87 (2016-2021) > M2 N55 (2016-2018)
3 Series
F80 (2015-2018) > M3 (2015-2018)
4 Series
F82 / F83 (2015-2020) > M4 (2015-2020)

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