This product is a Genuine Mercedes Shock Absorber designed specifically for the E63 AMG and CLS63 AMG models. Its part number is 2123202630. It is a high-quality, original equipment manufacturer (OEM) part that is manufactured to strict Mercedes standards for optimal performance and durability. This shock absorber is an essential component of the vehicle's suspension system, helping to absorb the impact of bumps and uneven road surfaces for a smoother and more comfortable ride. It is a direct replacement for the original shock absorber and is designed to fit seamlessly into the vehicle's suspension system.