High Quality Replacement Part Rear Lower Inner Outer Left Right A-arm Bushing Kit Fits Polaris Models: Sportsman 450 HO 2×4 2016-2017 Sportsman 570 EPS 2016-2017 Sportsman 570 Touring 2016-2017 Sportsman 570 6×6 Big Boss 2017-2023 Sportsman X2 570 EPS 2017 Sportsman SP 570 EPS 2016 Included: 2 x Long Pivot Shaft: 5139929 Length: 282.6 mm Inner Diameter: 8.2 mm Outer Diameter: 16 mm 4 x Flange Washer: 7556153 Thickness: 2 mm Inner Diameter: 10.6 mm Outer Diameter: 19.8 mm 4 x Bushing: 1543326 Length: 29.7mm Inner Diameter: 16mm Head Diameter: 31.5mm Tube Diameter: 21mm 4 Bolts: 7517873 Height: 77mm Length: 15.6mm Thread Size: 7/16-14 8 Bushings: 5438902 Width: 18.5mm Inner Diameter: 31mm Outer Diameter: 47.5mm 4 Bushings: 5632291 Length: 48.3mm Inner Diameter: 11.4mm Outer Diameter: 31mm Rear Lower Arm Part Number A Left: 1015888-458 1015888-067 Right: 1015889-458 1015889-067 Bearing Carrier: 5135563