An inflator apparatus for inflating more than one un-inflated tire-wheel assembly is disclosed. The inflator apparatus includes a support structure; an interface portion rotatably-attached to the support structure, wherein the interface portion includes a plurality of inflator heads, wherein each inflator head of the plurality of inflator heads includes a fluid inlet; a plunger portion movably-connected to the support structure, wherein the plunger portion is movably-connected to the support structure to permit selectively coupling of the plunger portion with one inflator head of the plurality of inflator heads; and a fluid conduit connected to the plunger portion, wherein the fluid conduit is fluidly connectable with the fluid inlet of the one inflator head of the plurality of inflator heads. A system for processing more than one un-inflated tire-wheel assembly is also disclosed. A method for utilizing an inflator apparatus for inflating more than one un-inflated tire-wheel assembly is also disclosed.