Front Lower Lateral Control Arm Left Right for Mercedes S-Class W221 4MATIC A2213307707 A2213307807 This front lower rearward control arm is strictly manufactured following 1:1 OEM structure, made of high-strength forged aluminum, equipped with precision ball joint and anti-aging rubber bushing. Many low-cost alternatives use inferior aluminum material and poor-quality rubber, which easily cause deformation, abnormal noise, loose clearance and unstable handling after long