General description These rear air suspension spring bags are designed for various models of Mercedes-Benz, providing a direct replacement for the original air shocks. They are aftermarket products that ensure durability and safety, having undergone extensive testing for performance. Technical specifications Stroke: 140mm ± 25mm Length: 35 cm (13.8 inches) Width: 33.5 cm (13.2 inches) Height: 7 cm (2.8 inches) Weight: 3.89 kg Temperature Range: ≥ -40℃ / ≤ 70℃ Greasable or Sealed: Sealed 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) OE/OEM Numbers: A 164 320 02 25; 1643200225; A 166 320 03 25; 1663200325; A 164 320 04 25; 1643200425; A 164 320 06 25; 1643200625; A 164 320 07 25; 1643200725; A 164 320 08 25; 1643200825; A 164 320 09 25; 1643200925; A 164 320 10 25; 1643201025; A 166 320 06 25; 1663200625 Installation