The Timken 416921 is a multi-purpose grease and oil seal sold individually. It measures 4.878 inches in diameter and 0.814 inches in height, making it a sizable seal suited to heavy-duty wheel-end or drivetrain applications where Timken part number 416921 is specified. Also cross-referenced as TB416921 under the Timken retail vendor code TB. If you need help verifying this is the right seal for your axle or hub application, give us a call at Pro Gear and Transmission and we can help you confirm the fit before you order.FeaturesTimken part number 416921, also cross-referenced as TB416921Grease and oil seal for multi-purpose heavy-duty applicationsDimensions: 4.878 in. diameter x 0.814 in. heightSold individually (each)Genuine Timken seal from Pro Gear and TransmissionTech SpecsPart Number: 416921 (cross-reference: TB416921)Type: Grease/Oil SealDiameter: 4.878 in.Height: 0.814 in.Sold As: Each