This hydraulic suspension valve block is a genuine OEM part for 00-06 Mercedes-Benz W220 CL-Class CL500. It is compatible with interchange part numbers A2203200358, A2203280031, A2203270115, and A2203280140. The unit type is a direct replacement and it is made in Germany. This valve block is designed for the lower, left, and front placement on the vehicle. It is a vintage part and is not considered a performance part.