AS-3153 is a new, Arnott engineered, aftermarket air suspension strut for the front right-hand side of the 2013-19 Mercedes-Benz GL/GLS-Class (X166) and 2012-18 ML/GLE-Class (W166) w/Airmatic and ADS, excluding AMG. This new assembly features a premium Eibach custom-tuned damper designed to provide a comfortable, yet responsive ride. The Arnott strut includes Tier 1 components including a new longer-lasting multi-ply cross corded ContiTech air sleeve. The Sleeve is protected by an aluminum can and dust cover and is coupled with a CNC-machined top mount made from aircraft-quality aluminum. This new air strut is designed and assembled in the USA with Arnott's long-lasting O-rings, bump stop, heavy-duty crimping rings, new airline fitting and connector valve.