All Balls Counter Shaft Seal Kit 25-4001 All Balls Counter Shaft Seal Kit 25-4001 Fitment: Various Husaberg, Husqvarna, KTM, and Polaris Models (see below for full fitment) Counter Shaft Seal Kit Included: (1) Seal, (4) O'Rings, (1) Bushing, (1) Snap Ring Sold as a kit