The Timken 493291 is a grease and oil wheel seal designed for driveline and axle wheel-end applications. It measures 3.688 inches in outside diameter and 0.754 inches in height, classifying it as a compact, purpose-built wheel seal for heavy-duty use. TB493291 is the manufacturer-coded reference for this seal, also sold under vendor part number 493291. If you need help confirming this seal fits your specific axle or hub configuration, call us and we can help narrow it down.FeaturesTimken part number 493291Groease and oil wheel seal for driveline and axle wheel-end applicationsOutside diameter: 3.688 in.Height: 0.754 in.Sold individually (each)Genuine Timken part available from Pro Gear and TransmissionTech SpecsPart Number: 493291Cross-Reference: TB493291Type: Grease and Oil Wheel SealOutside Diameter: 3.688 in.Height: 0.754 in.Unit of Measure: Each