4Pcs Up+Downstream Oxygen Sensor For 2004-2006 for BMW 325i 330i 330Ci 525i X3 3.0L

Condition:New|Features:Direct Fit, Easy Installation|Manufacturer Warranty:2 Year|OE/ Part Number:234-5137 234-4473|Number of Pieces:4|Fitment Type:Direct Replacement|Sensor Type:Oxygen Sensor|Superseded Part Number:234-5137, 11787523434, 11787523435, 2345137, OS5491|UPC:047728491468|Year:2003-2006|Number of Sensors:4|Placement on Vehicle:Upstream & Downstream, Front & Rear, Pre-cat & Post-cat|ENGINE:3.0L Auto Trans|Fitment: for BMW 325Ci, 325i, 330Ci, 330i, 325Ci, 525i, 530i, X3|Manufacturer Part Number:234-5137, 234-4473|Brand:Unbranded|Terminal Type:Blade & Bullet|Wire Quantity:4|Surface Finish:the same as the pics|Type:Oxygen Sensor