Abstract: There is disclosed herein a wheel trim retention system comprising interengaging portions secured to opposing generally radially extending flange portions of the wheel trim and vehicle wheel which cooperate with each other to form a secure retention arrangement. In one form, the interengaging portions comprise a plurality of circumferentially spaced portions secured to corresponding flange portions of the wheel trim and vehicle wheel with a valve stem opening in the trim member serving to circumferentially position the trim member with respect to the wheel. Radial locating protrusions may also be provided on the trim which cooperate with flange portions of the vehicle wheel to axially align the mating portions as the wheel trim is installed thereon.