The ornamental design for a rearenginecover, as shown and described.
FIG. 1 is a rear top perspective view of a grille showing our new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is left elevation view thereof; and,
FIG. 4 is right elevation view thereof.
The grille is adjacent to the body of the track-type loader and thus, the bottom and front views of the grille are not visible during ordinary use and form no part of the claimed design.