New Tractor Front Wheel Dust Caps. These fit the Case Ingersoll Garden tractors using part no C26021 which is used on the 2XX,4XX,3XXX,4XXX series tractors. You receive a set of 2 new dust caps. These are improved vented dust caps By being vented they allow air to escape when the hubs are greased and when the caps are installed this prevents the caps from being pushed off