2pcs Rear Left & Right Upper Lateral Arm Compatible With 2013-2017 Buick Lacrosse 2014-2017 Buick Regal 2013-2019 Cadillac XTS 527-169 527-174. 2、Compatible Cars:Compatible With 2013-2017 Buick Lacrosse 2014-2017 Buick Regal 2013-2019 Cadillac XTS( For 2013-2016 Buick Lacrosse, it fits the model with H-Arm Suspension.).