The ornamental design for a window component extrusion, as shown and described.
FIG. 1 is a top right perspective view of the window component extrusion which is broken in the center indicating indefinite length.
FIG. 2 is a bottom left perspective view of the window component extrusion shown in FIG. 1.
FIG. 3 is a top right perspective view of a second embodiment of the window component extrusion which is broken in the center indicating indefinite length; and,
FIG. 4 is a bottom left perspective view of the window component extrusion shown in FIG. 3.