The Eaton 821345 is a hub ring, carried with the axle and differential parts we stock for heavy-duty trucks. It is a genuine Eaton part from Pro Gear and Transmission. Hub rings are matched to a specific assembly, so comparing the number on your old ring to 821345 is the quickest first check. If you are not sure it is the right ring for your axle, give us a call and we will help you confirm proper fit before you order.FeaturesEaton hub ringEaton part number 821345Carried with our axle and differential parts