Fits rear, left or right on the following Kubota RTV-X models (with serial # above 13023): 2016-2020 RTV-X1140R, 2016-2020 RTV-X1140W. Features a stronger than OEM, 4140 chromoly steel axle bar. Greased with a moly based grease to provide superior joint lubrication. Fitted with neoprene CV boots for added wear and puncture resistance. Compressed axle length: 631 mm, inner spline count: 24, outer spline count: 22. Please note this axle is only for 'RTV-X' type models.