Type Sensor Manufacturer Part Number BK82702701PP Brand Brake UPC Does not apply Number of Pieces 2 Fitment Type Direct Replacement Interchange Part Number 234-4159, 8946509090,, O2 Oxygen Sensor Superseded Part Number 234-4189, Other Part Number 8946509120, 8946580026, Manufacturer Warranty 1 Year Custom Bundle Yes Modified Item No Position Downstream Universal Or Specific Fit Specific Attachment Method Screw-On Thread Size M18 Terminal Type Blade Sensor Type Heated Heated Yes Hex Size 7/8 in Number of Wires 4, 4 Wires 4, 4 Housing Material Metal Automotive Color / Finish Steel Technology Narrow-band Placement on Vehicle After Catalytic Converter Location Rear Output Signal Range (V) 0.2 To 0.8 Volt Length 0 In. Bundle Descript.