General description These rear air suspension spring bags are designed for various Mercedes-Benz models, providing a direct replacement for the original air shocks. They are brand new and come in a quantity of two, suitable for either the left or right rear side of the vehicle. Technical specifications Stroke: 140mm ± 25mm Dimensions: 35 cm x 33.5 cm x 7 cm (13.8 in x 13.2 in x 2.8 in) Weight: 3.89 kg Greasable or Sealed: Sealed Temperature Range: ≥ -40℃ / ≤ 70℃ Compatibility and accessories Fits Mercedes-Benz GL-Class X164 (2006-2012) Fits Mercedes-Benz GL-Class X166 (2012-2019) Fits Mercedes-Benz M-Class W164 (2005-2011) Fits Mercedes-Benz M-Class W166 (2011-2018) Compatible with models: GL320 (2007-2009), GL350 (2010-2012), GL450 (2007-2012), GL550 (2008-2012), ML320 (2007-2009), ML350 (2006-2011), ML450 (2010-2011), ML500 (2006-2007), ML550 (2008-2011), ML63 AMG (2007-2011) Reference OE/OEM Numbers: A 164 320 02 25, 1643200225, A 166 320 03 25, 1663200325, A 164 320 04 25,