Premium Quality Replacement PartFront Upper Inner A-Arm Bushing Kit for Polaris RZR XP 4 TURBO 2021 NEWFor Models:RZR XP 4 TURBO 2021A-Arm Part Number: Front Upper Left 1025143-458Front Upper Right 1025144-458Front Lower Left 1025139-458Front Lower Right 1025140-458Order Includes:1 x Pivot Shaft | 51399662 x Bushing | 5452233Dimensions & Measurements :Pivot Shaft:Length: 51mm | 2.0″Inner Diameter: 10mm | 0.39″Outer Diameter: 16mm | 0.62″Bushing:Outer Diameter: 26mm | 1.02″Inner Diameter: 16.5mm | 0.64″Height: 15.5mm | 0.61″**