Reference OEM Number: A1663202513 , 1663202513 , A1663207313 , 1663207313 , A1663204966 , 1663204966, A166 320 25 13 , 166 320 25 13, A166 320 73 13 , 166 320 73 13, A166 320 49 66 , 166 320 49 66, 166320496680 Fitment: For Mercede-Benz GL GLS W166 X166 2013-2016 without ADS For Mercedes-Benz GL 63 AMG 2013-2016 For Mercedes-Benz GL 550 2013-2016 For Mercedes-Benz GL 450 2013-2016 For Mercedes-Benz GL 350 2013-2016 For Mercede-Benz GLS W166 X166 2017-2019 without ADS For Mercedes-Benz GLS 63 AMG 2017-2019 For Mercedes-Benz GLS 550 2017-2019 For Mercedes-Benz GLS 450 2017-2019 For Mercedes-Benz GLS 350d 2017-2019 Features: 1. Shock Absorber Mounting Type：Bottom Fork 2. Spring Design：Air Spring 3. Shock Absorber Type：Gas Pressure 4. Fitting Position：Front Axle Left.
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