Front Left Upper Tension Strut, BMW - F8X M2/M3/M4
Genuine control arm with rubber bushing to restore original ride comfort and steering precision. Replacement for BMW part #31122284531
This is the original left front upper control arm used on F80 M3, F82 M4, and F87 M2. Also called a tension strut or thrust arm by BMW. This is the complete arm inclusive of the inner bushing although we strongly suggest our sealed monoball upgrade for this position (see below). Pre-installation of the monoball into the arm is also available.
The inner bushing is often replaced when the rubber degrades over time or from rough pavement. The bushing can no longer dampen suspension movement and you end up with a steering vibration, imprecise steering feel, and sloppy handling.
This is a Genuine BMW Tension Strut 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.
F87 (2016+) > M2 Competition S55 (2019+)
F87 (2016+) > M2 N55 (2016-2018)
F80 (2015-2018) > M3 (2015-2018)
F82 / F83 (2015-2020) > M4 (2015-2020)