This hydraulic pump is a genuine OEM original from Mercedes-Benz, specifically designed for the 07-13 Mercedes W221 S550 S600 S63 AMG models. It is responsible for locking and unlocking the trunk lid and is compatible with a variety of S-Class models including S350, S400, S450, and S65 AMG.

Made with a combination of plastic and steel materials, this pump is built to last. Its color is OEM and it comes with a variety of OE/OEM part numbers including A2218001548 and A2218000148. The placement on the vehicle is at the rear and it supersedes various Mercedes-Benz parts.