4X Up Downstream Oxygen Sensor for BMW 128i 323i 328i 528i 328Xi528Xi X3 X5 Z4

Condition:New|Brand:Unbranded|Interchange Part Number:11787545075 11787545074, 11787558073, 11787558073 11787558055, 234-5138, 24333|Manufacturer Part Number:11787540166, 11787540167, 11787557223, 11787558087, 11787589138, 1787558081, 234-5138, 234-5139|Number of Sensors:4|OE/ Part Number:234-5138£¬234-5139£¬234-4876£¬234-4892, 234-5139|Placement on Vehicle:Upstream (Left + Right) & Downstream (Left + Right)|Sensor Type:Oxygen Sensor|Thread Diameter:0.711 & 0.711 & 0.708 & 0.708|Type:Oxygen Sensor