Replacement input sealsfor many rotary cutters with 40hp or 50hp gearboxes from manufacturers like Landpride, Servis Rhino, Alamo, Big Bee, Darrell Harp, Kodiak, King Kutter, WAC, Hawkline, Wallace Auto, Tebben, Howse and more. These gearboxes will have 1-3/8" input shafts, either smooth or splined and a 1.57" output shaft with 12 splines. Replaces seals on Omni, ITG, Autotech, Grizzly gearboxes and more