This air compressor solenoid valve unit, also known as an air compressor valve block, directly replaces the original unit on specific vehicles. It restores proper suspension performance when the original unit fails. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Land Rover LR3: 2005, 2006, 2007, 2008, 2009] - [Land Rover LR4: 2010, 2011, 2012, 2013, 2014, 2015, 2016] - [Land Rover Range Rover Sport: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013] - [Land Rover Range Rover: 2006, 2007, 2008, 2009, 2010, 2011, 2012]