A wheel cover for a front wheel of a truck includes a main body, a central cap, at least two washers, multiple bolt caps, and an insulation plate. The main body defines a central hole and multiple recesses. The insulation plate, which defines a central hole and multiple through holes, is located between the main body and a rim of a front wheel, such that the recesses of the main body and the through holes of the insulation plate are aligned to receive bolts and nuts provided for the rim of the front wheel. The two washers are fitted into two of the recesses of the main body, around the corresponding bolts, and fixed by the corresponding nuts, so that the main body is assembled to the front wheel. The bolt caps can be respectively fitted into the recesses of the main body to cover the bolts and the nuts.