One Aftermarket Replacement Various Hitachi Cylinder Wear Ring that fits the following models:ExcavatorsBucket: EX200-2, EX200LC-2, Cylinder: 4287889, After 60001> (River), EX200-3, EX200LC-3, EX200H-3, EX200LCH-3, Cylinder: 4287889, After 78001> (River), EX200-5, EX200LC-5, EX210H-5, EX210LCH-5, Cylinder: 4371061, After 050001> (River), EX220-5, EX220LC-5, EX230-5, EX230LC-5, EX230H-5, EX230LCH-5, Cylinder: 4371061, After 1001> (River), EX300-3, EX300LC-3, EX300H-3, EX300LCH-3, Cylinder: 4326775, After 7001> (River)Dump: EX400-3, EX400LC-3, EX400H-3, EX400LCH-3, Cylinder: 4219782, After 5001> (Load Shovel)Boom: ZX70, ZX70LC, ZX80, ZX80LCK, ZX80SB, ZX80SBLC, Cylinder: 4446254, After 060001> (Mono Boom, Swing Boom)Load