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