Replacement Number: 2123302711, 2123302711S1, A2123302711, A2123302711S1, Description: Upgrade your Mercedes-Benz W212’s suspension with the FEBI Bilstein 44518 Suspension Arm, featuring an integrated ball joint. Here are the highlights: Precision Fit : Specifically designed for Mercedes-Benz W212 and S212 models, ensuring perfect compatibility. High-Quality Construction : Crafted from durable materials to withstand wear and tear, providing longevity and reliability. OE Replacement : Meets or exceeds the specifications, matching part number 2123302711 for optimal performance. Enhanced Handling : Improves steering responsiveness and stability, contributing to a safer, more comfortable ride. Easy Installation : Direct replacement part allows for quick and straightforward installation, saving time for both DIY enthusiasts and professionals.