EXCAVATOR/BULLDOZER BRAND SPROCKET MODEL DESCRIPTION Komatsu PC60, PC60-6, PC100-3, PC120, PC200-1, PC200-3/5 PC300-3/5 ,PC300-6,PC400-3/5 Hitachi EX100,EX200-1, EX200-2, EX200-3 ,EX300-1/3, EX100M, EX100M-5,EX300-5, EX400-1/3/5, UH04,UH045-7,UH081,UH083 Kato HD400, HD500, HD700, HD770,HD820,HD1250 Caterpillar D4D, E120, E180,E200B,E320 Kobelco SK07N2, SK200-3, SK210, SK220, SK300, SK909 Sumitomo SH120, SH200, SH280,SH430,LS2800FJ2 Other D20,D31,MA110