... for supporting oem parts including track roller,top roller,idler,sprocket,segments,track link,track link assy,tensional assembly:Komatsu:D20 ... /7,HD770,HD770-2/5/7,HD800,HD820,HD850,HD880,HD900,HD1023,HD1200,HD1220, HD1250,HD1225-1,HD1250-5/7,HD1430 ... ,320LC,335,450Kubota:U-35-3, U-50-3Liebherr:R912 sprocket for hitachi sh200