The Timken 477163N is a grease/oil seal designed for differential pinion applications in heavy-duty driveline and axle systems. Catalogued under the differential pinion seal category, this seal measures 4.878 inches in diameter and 0.814 inches in height. It is sold individually as a single-unit part. It is also referenced as TB477163N is the retail-coded variant of the same seal. If you need to verify this seal fits your specific axle or differential, contact Pro Gear and Transmission directly before ordering.FeaturesDifferential pinion grease/oil seal applicationTimken part number 477163N4.878 in. diameter, 0.814 in. heightSold as individual unit (each)Fits driveline and axle differential pinion positionsTech SpecsPart Number: 477163NType: Grease/Oil SealApplication: Differential Pinion SealDiameter: 4.878 in.Height: 0.814 in.Sold As: Each