Front Lower Lateral Control Arm Left Right for Mercedes GL-Class X164 2006-2012 A1643301707 A1643301807 Front lower lateral control arm (track control arm) for the Mercedes-Benz GL-Class (X164, 2006–2012) — Left A1643301707 / Right A1643301807 (Mercedes formats 164 330 17 07 / 164 330 18 07). European catalog data confirms the position: Front Axle, Lower, Left / Right, cast steel construction, without ball joint, dimensions 680 × 480 × 100 mm, approx. 13–13.6 kg per side.