We claim the ornamental design for a wheel cover insert, as shown and described.
FIG. 1 is a rear perspective view of a tractor including a wheel cover having a wheel cover insert;
FIG. 2 is an exploded perspective view of the wheel cover including the wheel cover insert;
FIG. 3 is a front perspective view of the wheel cover insert;
FIG. 4 is a rear perspective view of the wheel cover insert;
FIG. 5 is a front elevational view of the wheel cover insert;
FIG. 6 is a rear elevational view of the wheel cover insert;
FIG. 7 is a top plan view of the wheel cover insert;
FIG. 8 the bottom plan view of the wheel cover insert;
FIG. 9 is a left side elevational of view of the wheel cover insert; and,
FIG. 10 is a right side elevational of view of the wheel cover insert.
The ornamental design which is claimed is shown in solid lines in the drawings. The long dash short dash broken lines in the drawings are boundary lines while the dash dash broken lines in the drawings are environmental and are for illustrative purposes only, forming no part of the claimed design. The different stipplings in the drawings represent a contrast.
The wheel cover insert is shown on an enlarged scale in FIGS. 3-10 as compared with FIGS. 1 and 2.