Arm Cylinder Seal Kit 4631062 9207059 For Hitachi Excavator ZX250 ZX240H ZX230 ZX230LCFor Hitachi Excavator ZX250 ZX240H ZX230 ZX230LC Arm Cylinder Seal Kit 4631062 9207059 ModelNum. Application CylPart# Code RodSize(in) Bore(in) Size Misc SerialNumber Part# ZX230, ZX230LC ARM 4613898 P UB 10 105mm 140mm MonoBoom D04 05 HIT 4631062 ZX230, ZX230LC ARM 4630579 P UB 10 105mm 140mm 2P Boom D04 08 HIT 4631062 ZX240H, ZX240LCH, ZX240K, ZX240LCK ARM 4613898 P UB 10 105mm 140mm MonoBoom D04 05 HIT 4631062 ZX240H, ZX240LCH, ZX240K, ZX240LCK ARM