The Timken 455556 is a grease and oil seal. It measures 4.878 inches in both length and width (outer diameter) with a height of 0.814 inches, making it a multi-purpose seal suitable for heavy-duty sealing applications. Sold individually, this Timken seal is a genuine part available through Pro Gear and Transmission. Not sure this is the right seal for your application? Give us a call to confirm proper fit before ordering.Interchanges:TB455556FeaturesTimken part number 455556Type: Grease and oil multi-purpose sealOuter diameter: 4.878 inchesHeight: 0.814 inchesSold individually (each)Genuine Timken part sold by Pro Gear and TransmissionTech SpecsPart Number: 455556Type: Grease/Oil Multi-Purpose SealOuter Diameter: 4.878 in.Height: 0.814 in.Unit of Measure: EachUPC: 053893870717