Looking for a Part Number - side skirt (Cooper S)

@zriha, Your Cooper has the JCW exterior package with the front/rear bumpers and rocker panels.

The rocker panels are two separate parts, the upper trim which is painted and the lower section cover which is the textured plastic.

Part Numbers:

Rocker Panel Trim Primed
: Left 51777382181
: Right 51777382182

Lower Section Cover
: Left 51777352151
: Right 51777352152

Have a great day and motor on -Rich