AS-3408 is a new, Arnott engineered, aftermarket air suspension strut for the front right-hand side of the 2013-2018 Mercedes-Benz GL/GLS (X166 chassis) and the 2012-2018 ML/GLE (W166) with Airmatic and ADS. This new assembly features a model specific shock absorber and air spring, designed to improve ride comfort and handling. The Arnott strut is built with Tier 1 components including a premium multi-layer cross-corded Continental ContiTech air sleeve protected by an aluminum can and dust cover. This new air strut is designed and assembled in the USA with a formed steel top mount, O-rings, polyurethane bump stop, heavy-duty crimping rings, new airline fitting and check valve. The aftermarket Mercedes-Benz front strut is backed by Arnott's industry leading warranty.