Oregon 11892 .325-inch Radially Ported 7 Tooth Power Mate Rim Spline Oregon 11892 Power Mate Replacement Rim used with Oregon 29105, 29175X, 30384X, 32457X, 33807X, 34254X, 34474X, 35641X, 38003, 40068, 41726X Power Mate Rim Sprocket Systems Also used with Oregon 100758X, 100791X, 100961X, 108215X, 111177X, 111178X, 513442, 513447, 513472X Power Mate Rim Sprocket Systems For .325" Pitch Chain Saws with 7-Tooth Small 7 Spline (Sm7) Rim Sprocket system Replace rim every two chain loops For use on Echo, Eco, Home lite, Husqvarna, John Deere, Conserved, Partner, Olympic, Eco, Cub Cadet, Stihl, Poulan Pro Saws. Please check your manual for compatibility