This haldex coupling oil pump is designed to match the fit and function of the original pump on specified applications, and is engineered for reliable performance and durability. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick LaCrosse: 2011, 2012, 2013, 2014, 2015, 2016] - [Buick Regal: 2014, 2015, 2016, 2017] - [Cadillac SRX: 2010, 2011, 2012, 2013, 2014, 2015, 2016] - [Cadillac XTS: 2014, 2015, 2016, 2017, 2018, 2019]