Fits rear, left or right on the following Kawasaki models: 2000-2002 Mule 2510, 2004-2008 Mule 3000 2x4, 2001-2008 Mule 3010 4x4, 2009-2023 Mule 4000 2x4, 2009-2023 Mule 4010/4010 Trans 4x4 * Features a stronger than OEM chromoly-forged steel axle shaft * Includes a high speed wheel bearing manufactured for long life * Double lip seal made to keep grease in and dirt out * inobard Splines - 15, outboard Splines - 24 * Replaces Kawasaki OEM # 39158-1105, 39158-1109, 39158-1104, 39158-1119, 39158-1120, 92045-0102.