Hitachi, Excavator, HIT-4185247, Hydraulic Wear Ring, Models EX270-5, EX270LC-5, EX280H-5, EX280LCH-5, EX300-3, EX300LC-3, EX300H-3, EX300LCH-3, EX300-5, EX330-5, EX350-5, EX370-5 (H,HD,K,&LC), EX400-3, EX400LC-3, EX400H-3, EX400LCH-3, EX400-3C, EX400LC-3C, EX450H-3C, EX450LCH-3C, EX400-5, EX400LC-5, EX450LC-5, EX450LCH-5, ZX270, ZX270LC, ZX280LC, ZX280LCN, ZX330, ZX330LC, ZX350LC, ZX350LCH, ZX350H, ZX350K, ZX350LCK, ZX370, ZX370MTH, ZX450, ZX450LC, ZX450H, ZX450LCH, ZX460LCH, ZX480MT, ZX480MTH