Bought it from GLOBALPARTS but never used it, it was not necessary. This used BMW F20 F21 M135i Suspension Shock Absorber is a genuine OE part from BMW, made in Germany. It is designed for the rear left and right sides of the vehicle. The manufacturer part number is 6857963, with a reference OE/OEM number of 37126857963. This shock absorber is specifically tailored for the M135i model, ensuring a proper fit and function for the rear suspension system.
eBay