4x NEW UpDownstream for Chevy Silverado 1500 for GMC for Sierra 1500 Oxygen O2 Sensor

Condition:New|Number of Sensors:4|Brand:Unbranded|Type:Oxygen Sensor|Interchange Part Number:234-4940, 12659516, 12666612, 21581, F00HL00421, 18187,2344940, 234-4974, 12655678, 2344974|Sensor Type:Oxygen Sensor|OE/ Part Number:234-4940 234-4974|Fitment Type:Direct Replacement|Manufacturer Part Number:234-4974 234-4940,2344974 2344940,12657188, 21075, 12661898, 12643708, F00HL00410,18054 5, 12661898, 12643708, F00HL00410, 18054|Features:Easy Installation|Superseded Part Number:for Cadillac for Escalade 2015-2018, ,for Chevrolet Silverado 1500 2014-2017, for Chevrolet Suburban 2015-2018, for Chevrolet Tahoe 2015-2018, for GMC for Sierra 1500 2014-2017, for GMC for Yukon 2015-2018,, for GMC for Yukon Xl 2015-2018|Placement on Vehicle:Front,Rear,Upstream, Downstream|UPC:741652805192