MasterPro Wheel Seal - 1180 Part #: 1180 Line: MPS MasterPro Wheel Seal 1 Year Limited Warranty Type: 001 Inside Diameter (in): 1.614 Inch Inside Diameter (mm): 41mm Outside Diameter (in): 2.177 Inch Outside Diameter (mm): 55mm Seal Material: Nitrile Rubber (NBR) Sealant Coat Added: No Show More Show Less