Abstract: A wheel dust filter including a central mounting plate having a central mounting hole formed therethrough and a plurality of lug apertures formed through the mounting plate and spaced around the central mounting hole; a circular frame rim having four sequentially spaced, rim filter receiving channels; four radially projecting frame rim supports each having two rim support filter receiving channels, each rim support being in connection between the frame rim and the central mounting plate in a manner to define four filter apertures; and four filter elements constructed from open cell foam, each filter element being positioned within one of the four filter apertures in a manner such that portions of the perimeter edge of each filter are positioned within a rim filter receiving channel and two rim support filter receiving channels.