Fit for 2007 – 2009 for Mercedes Benz GL320 With Adaptive Damping System  2010 – 2012 for Mercedes Benz GL350 With Adaptive Damping System 2007 – 2012 for Mercedes Benz GL450 With Adaptive Damping System  2008 – 2012 for Mercedes Benz GL550 With Adaptive Damping System 2007 – 2009 for Mercedes Benz ML320 With Adaptive Damping System 2005 – 2011 for Mercedes Benz ML350 With Adaptive Damping System  2010 – 2011 for Mercedes Benz ML450 With Adaptive Damping System 2005 – 2007 for Mercedes Benz ML500 With Adaptive Damping System 2008 – 2011 for Mercedes Benz ML550 With Adaptive Damping System Condition: New Placement on Vehicle:   Rear left right Quantity: 2 pieces Warranty: 1 year Notice -These shock are aftermarket ones. They will replace the original air shock. Please double confirm the compatibility as well as the OEM number before purchasing. -Professional installation is recommended Application:For Mercedes-Benz GL-Class X164 ADS 2006-2018;  For Mercedes-Benz ML-Class W164 ADS 2005-2018; tip:  For Adaptive Damping System ADS air suspension shock; Reference OE/OEM Number:1643203031 ,1643200731 ,1643202031,1643202731 ,164320073160 ,164320073180,164320073188 ,164320203160 ,164320203180,164320203188 ,164320273160 , 164320273180,164320273188