Front brake caliper left or passenger side for BMW 3 Series E90 or E91 or E92 or E93 320d or 320i or 323i or 325i from 2005 to 2012 or BMW X1 E84 16d or 18d or 18i or 20d or 20i or 25d from 2009 to 2015 or BMW Z4 E89 20i or 23i or 28i from 2009 onwards.

Specs: Piston diameter: 57 mm; Number of pistons: 1; Disc thickness: 24 mm.