Replacement suction motor for compatible Royal canister vacuums.  This was parted out of a model 411 Power Tank 4.0 peak HP vacuum - may fit other models with 6-1/4" diameter canister body as well.  Comes with rubber mounting rings.  Motor runs fine - no unusual noises - produces strong suction - excellent condition.  This item is guaranteed to be as described but is otherwise sold with no returns.