This is a spare tire jack holder lifter arm for various Mercedes Benz models including W164, X164, W251, ML550, ML350, ML320, R350, R320, and GL450. The part number is A1648990054, and it is made of steel in Germany. It is suitable for both the rear and front placement on the vehicle. The brand is Mercedes Benz, and it is an OE/OEM part.

B40 21