Order Includes: 1x Complete Primary Drive Clutch with Weights and Spring. Compatible with Polaris models: Sportsman 400L 4X4 1997, Sportsman 450 4X4 2006. Product Specs: OEM Style Solid Shaft without bearing. Measurements: Shaft Outer Diameter 38mm, Shaft hole Inner Diameter 29mm. We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..
