Boom Cylinder Seal Kit 4624394 For Hitachi Excavator ZX250 ZX240H ZX230 ZX230LCBoom Cylinder Seal Kit 4624394 For Hitachi Excavator ZX250 ZX240H ZX230 ZX230LC See Details: Model Num. Application Cyl Part# Code Rod Size (in) Bore (in) Size Misc Serial Number Part # ZX230, ZX230LC BOOM LH 4613893 P UB 10 90 mm 125 mm D03 08 HIT 4624394 ZX230, ZX230LC BOOM RH 4613892 P UB 10 90 mm 125 mm D03 08 HIT 4624394 ZX240H, ZX240LCH, ZX240K, ZX240LCK BOOM LH 4613893 P UB 10 90 mm 125 mm D03 08 HIT 4624394 ZX240H, ZX240LCH, ZX240K, ZX240LCK