Item Part Number: 11787558073 11787558055 11787545075 11787545074 Colour:As Shown Material:ABS+metal Compatible Part Number: 11787558073, 2345138, 24333, 11787540166, 11787540167, 11787557223, 11787558081, 11787558087, 11787589138 11787558055, 2345139, 24322, 0035427218, 11787557756 11787545074, 2344876, 25676, 11787526262, 11787545074, 11787545244, 11787569968, 11787614322 11787545075, 2344892, 25613, 11787539137, 11787544655, 11787545075, 11787545243 Package Included: 4 PCS Oxygen Sensors 11787558055 (5-wire oxygen sensor): Upstream Front, Cylinder 1-3, before catalytic converter 1X 11787558073 (5-wire oxygen sensor): Upstream Rear, Cylinders 4-6, before catalytic converter 1X 11787545074 (4-wire oxygen sensor): Downstream Front, Cylinders 1-3, after catalytic converter 1X 11787545075 (4-wire oxygen sensor): Downstream Rear, Cylinders 4-6, after catalytic converter 1X Fits For: for 128i 2008-2013 E82; E88 for 328i 2007-2011 E90; E91; E92; E93 2012-2012 E91; E92; E93 2013-2013 E92; E93 for 328i xDrive 2009-2011 E90; E91; E92 2012-2012 E91; E92 2013-2013 E92 for 328xi 2007-2008 E90; E91; E92 for X3 2007-2008 E83; 3.0si 2009-2010 E83; xDrive30i for X5 2007-2008 3.0si 2009-2010 3.0 xDrive30i Package Contents: 4x Oxygen Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.