LAND ROVER RANGE ROVER SPORT OEM DUNLOP AIR SUSPENSION COMPRESSOR LR011837A / LR023964 LAND ROVER RANGE ROVER SPORT 2005-2012 AIR SUSPENSION COMPRESSOR ASSY PART LR011837A AND RELAY PART YWB500220 ARE YOU DRIVING AN AFFECTED VEHICLE? Land Rover Discovery MK 3 (LR3) 2005-2009 Land Rover Discovery MK 4 (LR4) 2010-2012 Range Rover Sport 2005-2012 Is your vehicles air suspension rising slowly, noisily, or perhaps failing to rise at all? EAS Amber light lit? Fault code C1A20, C1A1364, C50, or C1A20-64 showing? One or more of these errors: Suspension error only normal height available Suspension fault; pressure not rising quick enough Or Pressure does not decrease when venting gallery THE SOLUTION: Suspension Compressor & Relay COMPRESSOR Part # LR023964 , LR015303 LR010376 LR011837 RQG500130 RQG500150 RQG500160 RQG500090 LR010376 LR011837 Please note that these compressors are only suitable for non AMK modified vehicles. BY USING THE ORIGINAL BRACKETS AND PIPES THEY ARE EASY TO INSTALL. THE RELAY PART # YWB500220 WHICH IS INCLUDED, MUST BE CHANGED NO NEED TO REPROGRAM THE ECU ( FAULT CODES MAY NEED TO BE CLEARED). Part Brand: DUNLOP OEM / HITACHI DIRECT REPLACEMENT Manufacturer Part Number: LR023964 Interchange Part Number: HITACHI DIRECT REPLACEMENT, LR010376 LR023964 LR044360 LR045251 LR061663 Other Part Number: YWB500220 Superseded Part Number: LR010376 LR023964 LR044360 LR045251 LR061663